{"id":39,"date":"2026-08-14T07:23:09","date_gmt":"2026-08-14T07:23:09","guid":{"rendered":"https:\/\/crystals.rocks\/?page_id=39"},"modified":"2026-08-19T16:55:49","modified_gmt":"2026-08-19T16:55:49","slug":"mineral-collection","status":"publish","type":"page","link":"https:\/\/crystals.rocks\/cs\/mineral-collection\/","title":{"rendered":"Sb\u00edrka miner\u00e1l\u016f"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"39\" class=\"elementor elementor-39\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-db4ae8d e-con-full e-flex e-con e-parent\" data-id=\"db4ae8d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation_mobile&quot;:&quot;fadeIn&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a410a19 elementor-widget elementor-widget-shortcode\" data-id=\"7a410a19\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<link rel=\"preload\" href=\"https:\/\/crystals.rocks\/wp-content\/uploads\/crystals-mineral-index\/minerals-live-cs_cz.json\" as=\"fetch\" crossorigin=\"anonymous\" fetchpriority=\"high\">\n\t\t\t\t<style>\n\t\t\t.cmcf-v2,.cmcf-v2 *{box-sizing:border-box}\n\t\t\t.cmcf-v2{--cmcf-primary:#202124;--cmcf-accent:#cfd5dd;--cmcf-primary-soft:#eef1f4;--cmcf-ink:#202124;--cmcf-muted:#6b7280;--cmcf-line:#dce1e7;--cmcf-soft:#f5f7fa;position:relative;isolation:isolate;width:100vw;max-width:none;margin-inline:calc(50% - 50vw);padding:clamp(30px,4.5vw,76px);border-top:1px solid var(--cmcf-line);background:#f5f7fa;color:var(--cmcf-ink);font-family:Arial,Helvetica,sans-serif!important;font-size:16px;text-align:start;unicode-bidi:isolate}\n\t\t\thtml[dir=\"rtl\"] .cmcf-v2,body[dir=\"rtl\"] .cmcf-v2{direction:rtl;text-align:start}\n\t\t\t.cmcf-v2 [hidden]{display:none!important}\n\t\t\t.cmcf-v2 button,.cmcf-v2 input,.cmcf-v2 select,.cmcf-v2 summary,.cmcf-v2 label,.cmcf-v2 kbd{font-family:Arial,Helvetica,sans-serif!important}\n\t\t\t.cmcf-v2 button,.cmcf-v2 input,.cmcf-v2 select{font-size:16px}\n\t\t\t.cmcf-v2 button,.cmcf-v2 button:hover,.cmcf-v2 button:focus,.cmcf-v2 button:active{border-color:var(--cmcf-primary)!important;color:var(--cmcf-primary)!important;box-shadow:none!important;outline:none!important}\n\t\t\t.cmcf-v2 button:focus-visible,.cmcf-v2 input:focus,.cmcf-v2 select:focus,.cmcf-v2 summary:focus-visible{border-color:var(--cmcf-primary)!important;box-shadow:0 0 0 4px rgba(32,33,36,.14)!important;outline:none!important}\n\t\t\t.cmcf-v2 .cmcf-sidebar{position:relative;z-index:12;margin-bottom:34px;padding:clamp(26px,2.7vw,42px);border:1px solid var(--cmcf-line);border-top:3px solid var(--cmcf-primary);border-radius:14px;background:#fff;box-shadow:0 14px 40px rgba(32,33,36,.07)}\n\t\t\t.cmcf-v2 .cmcf-sidebar-head{display:none}\n\t\t\t.cmcf-v2 .cmcf-form{margin:0}\n\t\t\t.cmcf-v2 .cmcf-filter-row{display:grid;grid-template-columns:1.22fr repeat(4,minmax(0,1fr));gap:clamp(14px,1.65vw,28px);align-items:start}\n\t\t\t.cmcf-v2 .cmcf-control{position:relative;min-width:0}\n\t\t\t.cmcf-v2 .cmcf-control-label{display:block;margin:0 0 9px;color:var(--cmcf-primary);font-size:16px;font-weight:700;line-height:1.2}\n\t\t\t.cmcf-v2 .cmcf-search-wrap{position:relative}\n\t\t\t.cmcf-v2 .cmcf-search,.cmcf-v2 .cmcf-filter-menu>summary{width:100%;height:56px;border:1px solid var(--cmcf-primary)!important;border-radius:10px;background:#fff!important;color:var(--cmcf-ink)!important;transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}\n\t\t\t.cmcf-v2 .cmcf-search{padding-block:0;padding-inline:17px 78px;outline:none;text-align:start;unicode-bidi:plaintext}\n\t\t\t.cmcf-v2 .cmcf-search:hover,.cmcf-v2 .cmcf-search:focus,.cmcf-v2 .cmcf-search:focus-visible,.cmcf-v2 .cmcf-search:active{border-color:var(--cmcf-primary)!important;color:var(--cmcf-ink)!important}\n\t\t\t.cmcf-v2 .cmcf-search[type=\"search\"]::-webkit-search-cancel-button,.cmcf-v2 .cmcf-search[type=\"search\"]::-webkit-search-decoration{-webkit-appearance:none;appearance:none}\n\t\t\t.cmcf-v2 .cmcf-search::placeholder{color:#9294a3;opacity:1}\n\t\t\t.cmcf-v2 .cmcf-search-wrap kbd{position:absolute;top:50%;inset-inline-end:13px;transform:translateY(-50%);padding:4px 7px;border:1px solid var(--cmcf-primary);border-bottom-width:2px;border-radius:4px;background:#f7f7fa;color:var(--cmcf-primary);font-size:11px;line-height:1;pointer-events:none}\n\t\t\t.cmcf-v2 .cmcf-filter-menu{position:relative;margin:0}\n\t\t\t.cmcf-v2 .cmcf-filter-menu>summary{position:relative!important;display:flex;align-items:center;gap:8px;padding-block:0;padding-inline:17px 42px;cursor:pointer;font-size:16px;list-style:none}\n\t\t\t.cmcf-v2 .cmcf-filter-menu>summary:hover,.cmcf-v2 .cmcf-filter-menu[open]>summary{background:var(--cmcf-primary-soft)!important}\n\t\t\t.cmcf-v2 .cmcf-filter-menu>summary::-webkit-details-marker{display:none}\n\t\t\t.cmcf-v2 .cmcf-filter-menu>summary::marker,.cmcf-v2 .cmcf-sort-menu>summary::marker{content:'';font-size:0}\n\t\t\t.cmcf-v2 .cmcf-filter-menu>summary:after,.cmcf-v2 .cmcf-sort-menu>summary:after,.cmcf-v2 .cmcf-filter-menu[open]>summary:after,.cmcf-v2 .cmcf-sort-menu[open]>summary:after{content:none!important;display:none!important;width:0!important;height:0!important;border:0!important;opacity:0!important}\n\t\t\t.cmcf-v2 .cmcf-menu-arrow{position:absolute!important;top:50%!important;right:auto!important;left:auto!important;inset-inline-end:17px!important;display:block!important;flex:none!important;width:8px!important;height:8px!important;margin:0!important;border-top:0!important;border-left:0!important;border-right:2px solid var(--cmcf-primary)!important;border-bottom:2px solid var(--cmcf-primary)!important;transform:translateY(-50%) rotate(45deg)!important;transform-origin:50% 50%!important;transition:transform .18s ease!important}\n\t\t\t.cmcf-v2 details[open]>summary>.cmcf-menu-arrow{top:50%!important;right:auto!important;left:auto!important;inset-inline-end:17px!important;transform:translateY(-50%) rotate(225deg)!important}\n\t\t\t.cmcf-v2 .cmcf-summary-count{display:inline-grid;min-width:23px;height:23px;padding:0 6px;place-items:center;border-radius:12px;background:var(--cmcf-primary)!important;color:#fff!important;font-size:12px;font-weight:700}\n\t\t\t.cmcf-v2 .cmcf-popover{position:absolute;top:calc(100% + 9px);right:auto;left:auto;inset-inline-start:0;z-index:30;width:max(100%,260px);max-height:340px;overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable;padding:10px;border:1px solid var(--cmcf-line);border-radius:12px;background:#fff;box-shadow:0 20px 48px rgba(32,33,36,.15);scrollbar-color:#bcc3cc transparent;scrollbar-width:thin}\n\t\t\t.cmcf-v2 .cmcf-options{display:grid;gap:3px}\n\t\t\t.cmcf-v2 .cmcf-option{display:grid;grid-template-columns:20px minmax(0,1fr) minmax(2ch,auto);column-gap:10px;align-items:center;min-height:42px;padding:7px 8px;border-radius:8px;color:#303044;font-size:15px;line-height:1.35;cursor:pointer;transition:background-color .16s ease,color .16s ease}\n\t\t\t.cmcf-v2 .cmcf-option:hover,.cmcf-v2 .cmcf-option:focus-within{background:var(--cmcf-primary-soft);color:var(--cmcf-primary)}\n\t\t\t.cmcf-v2 .cmcf-option input{align-self:center;justify-self:center;width:18px;height:18px;margin:0;accent-color:var(--cmcf-primary);cursor:pointer}\n\t\t\t.cmcf-v2 .cmcf-option input:focus{box-shadow:0 0 0 3px rgba(32,33,36,.14)!important}\n\t\t\t.cmcf-v2 .cmcf-option-name{display:flex;align-items:center;gap:9px;min-width:0}\n\t\t\t.cmcf-v2 .cmcf-option-text{min-width:0;overflow-wrap:anywhere;unicode-bidi:plaintext}\n\t\t\t.cmcf-v2 .cmcf-option-total{align-self:center;min-width:2ch;color:#858b95;font-size:13px;font-variant-numeric:tabular-nums;line-height:1;text-align:end}\n\t\t\t.cmcf-v2 .cmcf-swatch{display:block;flex:0 0 16px;width:16px;height:16px;margin:0;border:1px solid rgba(0,0,0,.24);border-radius:50%;box-shadow:inset 0 0 0 1px rgba(255,255,255,.32)}\n\t\t\t.cmcf-v2 .cmcf-range{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:end;overflow:visible}\n\t\t\t.cmcf-v2 .cmcf-range label{display:grid;gap:7px;color:var(--cmcf-primary);font-size:13px;font-weight:700}\n\t\t\t.cmcf-v2 .cmcf-range input{width:100%;height:43px;padding:0 10px;border:1px solid var(--cmcf-line);border-radius:0;background:#fff;color:var(--cmcf-ink)}\n\t\t\t.cmcf-v2 .cmcf-range>span{padding-bottom:13px;color:var(--cmcf-muted);font-size:13px}\n\t\t\t.cmcf-v2 .cmcf-sidebar-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}\n\t\t\t.cmcf-v2 .cmcf-reset,.cmcf-v2 .cmcf-show,.cmcf-v2 .cmcf-empty button{min-height:45px;padding:0 20px;border:1px solid var(--cmcf-primary)!important;border-radius:0;background:#fff!important;color:var(--cmcf-primary)!important;font-weight:700;cursor:pointer}\n\t\t\t.cmcf-v2 .cmcf-reset:hover,.cmcf-v2 .cmcf-reset:focus,.cmcf-v2 .cmcf-reset:active,.cmcf-v2 .cmcf-empty button:hover,.cmcf-v2 .cmcf-empty button:focus,.cmcf-v2 .cmcf-empty button:active{background:var(--cmcf-primary-soft)!important;color:var(--cmcf-primary)!important}\n\t\t\t.cmcf-v2 .cmcf-show,.cmcf-v2 .cmcf-show:hover,.cmcf-v2 .cmcf-show:focus,.cmcf-v2 .cmcf-show:active{display:none;background:var(--cmcf-primary)!important;color:#fff!important}\n\t\t\t.cmcf-v2 .cmcf-results{width:100%}\n\t\t\t.cmcf-v2 .cmcf-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;margin-bottom:22px;padding:0 0 17px;border-bottom:1px solid var(--cmcf-line)}\n\t\t\t.cmcf-v2 .cmcf-result-count{color:var(--cmcf-primary);font-size:17px;font-weight:700}\n\t\t\t.cmcf-v2 .cmcf-sort-control{display:flex;align-items:center;gap:10px;color:var(--cmcf-primary);font-size:14px;font-weight:700;text-transform:uppercase}\n\t\t\t.cmcf-v2 .cmcf-sort-menu{position:relative;margin:0;text-transform:none}\n\t\t\t.cmcf-v2 .cmcf-sort-menu>summary{position:relative!important;display:flex;align-items:center;gap:10px;min-width:128px;height:45px;padding-block:0;padding-inline:15px 42px;border:1px solid var(--cmcf-line)!important;border-radius:0;background:#fff!important;color:var(--cmcf-ink)!important;font-size:14px;font-weight:700;list-style:none;cursor:pointer}\n\t\t\t.cmcf-v2 .cmcf-sort-menu>summary::-webkit-details-marker{display:none}\n\t\t\t.cmcf-v2 .cmcf-sort-options{position:absolute;top:calc(100% + 7px);right:auto;left:auto;inset-inline-end:0;z-index:40;display:grid;width:100%;min-width:150px;padding:7px;border:1px solid var(--cmcf-line);background:#fff;box-shadow:0 16px 36px rgba(32,33,36,.14)}\n\t\t\t.cmcf-v2 .cmcf-sort-option,.cmcf-v2 .cmcf-sort-option:hover,.cmcf-v2 .cmcf-sort-option:focus,.cmcf-v2 .cmcf-sort-option:active{display:block;width:100%;min-height:40px;padding:8px 11px;border:0!important;border-radius:0;background:#fff!important;color:var(--cmcf-ink)!important;font-size:14px;font-weight:700;text-align:start;cursor:pointer}\n\t\t\t.cmcf-v2 .cmcf-sort-option:hover,.cmcf-v2 .cmcf-sort-option:focus{background:var(--cmcf-primary-soft)!important;color:var(--cmcf-ink)!important}\n\t\t\t.cmcf-v2 .cmcf-sort-option[aria-pressed=\"true\"],.cmcf-v2 .cmcf-sort-option[aria-pressed=\"true\"]:hover,.cmcf-v2 .cmcf-sort-option[aria-pressed=\"true\"]:focus,.cmcf-v2 .cmcf-sort-option[aria-pressed=\"true\"]:active{background:var(--cmcf-primary)!important;color:#fff!important}\n\t\t\t.cmcf-v2 .cmcf-active{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 20px}\n\t\t\t.cmcf-v2 .cmcf-chip,.cmcf-v2 .cmcf-chip:hover,.cmcf-v2 .cmcf-chip:focus,.cmcf-v2 .cmcf-chip:active{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:5px 12px;border:1px solid var(--cmcf-primary)!important;border-radius:18px;background:var(--cmcf-primary-soft)!important;color:var(--cmcf-primary)!important;font-size:14px;cursor:pointer}\n\t\t\t.cmcf-v2 .cmcf-chip:after{content:'\\00d7';font-size:18px;line-height:1}\n\t\t\t.cmcf-v2 .cmcf-count-number+.cmcf-count-word{margin-inline-start:.35em}\n\t\t\t.cmcf-v2 .cmcf-status{padding:42px 0;color:var(--cmcf-muted);font-size:16px;text-align:center}\n\t\t\t.cmcf-v2 .cmcf-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:clamp(16px,1.5vw,25px)}\n\t\t\t.cmcf-v2 .cmcf-card{min-width:0;border:1px solid var(--cmcf-line);background:#fff;box-shadow:0 8px 24px rgba(32,33,36,.05);content-visibility:auto;contain-intrinsic-size:390px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}\n\t\t\t.cmcf-v2 .cmcf-card:hover{transform:translateY(-4px);border-color:#b9c0c9;box-shadow:0 15px 38px rgba(32,33,36,.1)}\n\t\t\t.cmcf-v2 .cmcf-card-link,.cmcf-v2 .cmcf-card-link:hover,.cmcf-v2 .cmcf-card-link:focus,.cmcf-v2 .cmcf-card-link:active,.cmcf-v2 .cmcf-card-link:visited{display:block;height:100%;color:inherit!important;text-decoration:none!important}\n\t\t\t.cmcf-v2 .cmcf-media{position:relative;overflow:hidden;aspect-ratio:4\/3;background:var(--cmcf-soft)}\n\t\t\t.cmcf-v2 .cmcf-media img{display:block;width:100%;height:100%;object-fit:cover;transform:none;transition:none}\n\t\t\t.cmcf-v2 .cmcf-card:hover .cmcf-media img{transform:none}\n\t\t\t.cmcf-v2 .cmcf-placeholder{display:grid;width:100%;height:100%;place-items:center;background:#eef1f4;color:#8a919b;font-size:58px;font-weight:700}\n\t\t\t.cmcf-v2 .cmcf-card-copy{padding:18px 17px 21px}\n\t\t\t.cmcf-v2 .cmcf-card h3,.cmcf-v2 .cmcf-card-link:hover h3,.cmcf-v2 .cmcf-card-link:focus h3,.cmcf-v2 .cmcf-card-link:active h3,.cmcf-v2 .cmcf-card-link:visited h3{margin:0;color:var(--cmcf-primary)!important;font-family:Arial,Helvetica,sans-serif!important;font-size:21px;font-weight:700;line-height:1.2;unicode-bidi:plaintext}\n\t\t\t.cmcf-v2 .cmcf-card p{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:5;margin:12px 0 0;color:var(--cmcf-muted);font-size:15px;line-height:1.6;unicode-bidi:plaintext}\n\t\t\t.cmcf-v2 .cmcf-empty{padding:80px 24px;border:1px solid var(--cmcf-line);background:var(--cmcf-soft);text-align:center}\n\t\t\t.cmcf-v2 .cmcf-empty h3{margin:0;color:var(--cmcf-primary);font:700 28px\/1.2 Arial,Helvetica,sans-serif}\n\t\t\t.cmcf-v2 .cmcf-empty p{margin:10px 0 22px;color:var(--cmcf-muted);font-size:16px}\n\t\t\t.cmcf-v2 .cmcf-sentinel{height:2px}\n\t\t\t.cmcf-v2 .cmcf-noscript,.cmcf-crawl-links{margin:24px 0 0;padding:20px;border:1px solid var(--cmcf-line);background:#fff}\n\t\t\t.cmcf-v2 .cmcf-noscript h2,.cmcf-crawl-links h2{margin:0 0 12px;font-size:18px}\n\t\t\t.cmcf-v2 .cmcf-noscript ul,.cmcf-crawl-links ul{display:flex;flex-wrap:wrap;gap:8px 18px;margin:0;padding:0;list-style:none}\n\t\t\t.cmcf-v2 .cmcf-noscript a,.cmcf-crawl-links a{color:var(--cmcf-primary)!important;text-decoration:underline!important}\n\t\t\t.cmcf-crawl-links li{width:min(100%,340px)}\n\t\t\t.cmcf-crawl-links a{display:grid;grid-template-columns:88px minmax(0,1fr);column-gap:12px;align-items:start}\n\t\t\t.cmcf-crawl-links img{grid-row:span 2;width:88px;height:66px;object-fit:cover}\n\t\t\t.cmcf-crawl-links strong,.cmcf-crawl-links span{display:block}\n\t\t\t.cmcf-crawl-links span{margin-top:4px;color:var(--cmcf-muted);font-size:13px;line-height:1.4;text-decoration:none}\n\t\t\t.cmcf-v2 .cmcf-seo-fallback{position:absolute!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;clip-path:inset(50%)!important;border:0!important;white-space:normal!important}\n\t\t\t.cmcf-v2 .cmcf-seo-fallback h2{margin:0 0 16px;color:var(--cmcf-primary);font-size:24px;line-height:1.2}\n\t\t\t.cmcf-v2 .cmcf-seo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}\n\t\t\t.cmcf-v2 .cmcf-seo-card{min-width:0;border:1px solid var(--cmcf-line);background:#fff}\n\t\t\t.cmcf-v2 .cmcf-seo-card a{display:block;height:100%;color:inherit;text-decoration:none}\n\t\t\t.cmcf-v2 .cmcf-seo-card img{display:block;width:100%;aspect-ratio:4\/3;object-fit:cover;background:var(--cmcf-soft)}\n\t\t\t.cmcf-v2 .cmcf-seo-card h3{margin:14px 15px 0;color:var(--cmcf-primary);font-size:18px;line-height:1.25}\n\t\t\t.cmcf-v2 .cmcf-seo-card p{margin:8px 15px 15px;color:var(--cmcf-muted);font-size:14px;line-height:1.5}\n\t\t\t.cmcf-v2.cmcf-ready .cmcf-seo-fallback,.cmcf-v2.cmcf-load-error .cmcf-seo-fallback{display:none}\n\t\t\t.cmcf-crawl-pagination{margin-top:18px}\n\t\t\t.cmcf-crawl-pagination .page-numbers{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}\n\t\t\t.cmcf-crawl-pagination .page-numbers a,.cmcf-crawl-pagination .page-numbers span{display:inline-block;padding:4px 9px;border:1px solid var(--cmcf-line);text-decoration:none!important}\n\t\t\t.cmcf-v2 .cmcf-mobile-bar,.cmcf-v2 .cmcf-overlay{display:none}\n\t\t\tbody.cmcf-drawer-open{overflow:hidden}\n\t\t\t.cmcf-v2 .cmcf-no-options{margin:0;padding:8px 4px;color:var(--cmcf-muted);font-size:14px;line-height:1.45}\n\t\t\t@media(max-width:1023px){.cmcf-v2 .cmcf-sidebar{border-radius:0}.cmcf-v2 .cmcf-popover{padding:9px}.cmcf-v2 .cmcf-option{min-height:44px;padding-block:8px}}\n\t\t\t@media(max-width:1023px){.cmcf-v2{width:100%;margin-inline:0;padding:20px}.cmcf-v2 .cmcf-mobile-bar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px;padding:10px 0;background:#fff;border-bottom:1px solid var(--cmcf-line)}.cmcf-v2 .cmcf-open,.cmcf-v2 .cmcf-open:hover,.cmcf-v2 .cmcf-open:focus,.cmcf-v2 .cmcf-open:active{min-height:46px;padding:0 17px;border:1px solid var(--cmcf-primary)!important;border-radius:0;background:var(--cmcf-primary)!important;color:#fff!important;font-weight:700;cursor:pointer}.cmcf-v2 .cmcf-open-count{display:inline-grid;min-width:22px;height:22px;margin-inline-start:6px;padding:0 5px;place-items:center;border-radius:11px;background:#fff;color:var(--cmcf-primary);font-size:12px}.cmcf-v2 .cmcf-mobile-result{color:var(--cmcf-muted);font-size:14px;font-weight:700}.cmcf-v2 .cmcf-sidebar{position:fixed;top:0;right:auto;bottom:0;left:auto;inset-inline-start:0;z-index:100002;width:min(100vw,430px);max-height:none;margin:0;padding:0;overflow:auto;transform:translateX(-102%);transition:transform .28s cubic-bezier(.22,.61,.36,1);background:#fff;box-shadow:18px 0 50px rgba(0,0,0,.2)}.cmcf-v2[dir=\"rtl\"] .cmcf-sidebar,html[dir=\"rtl\"] .cmcf-v2 .cmcf-sidebar{transform:translateX(102%);box-shadow:-18px 0 50px rgba(0,0,0,.2)}.cmcf-v2.is-drawer-open .cmcf-sidebar,.cmcf-v2[dir=\"rtl\"].is-drawer-open .cmcf-sidebar,html[dir=\"rtl\"] .cmcf-v2.is-drawer-open .cmcf-sidebar{transform:translateX(0)}.cmcf-v2 .cmcf-sidebar-head{position:sticky;top:0;z-index:35;display:flex;align-items:flex-start;justify-content:space-between;padding:23px 21px 19px;border-bottom:1px solid var(--cmcf-line);background:#fff}.cmcf-v2 .cmcf-sidebar-head h2{margin:3px 0 0;color:var(--cmcf-primary);font:700 30px\/1.05 Arial,Helvetica,sans-serif}.cmcf-v2 .cmcf-eyebrow{margin:0;color:var(--cmcf-muted);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.cmcf-v2 .cmcf-close,.cmcf-v2 .cmcf-close:hover,.cmcf-v2 .cmcf-close:focus,.cmcf-v2 .cmcf-close:active{display:block;width:42px;height:42px;padding:0;border:1px solid var(--cmcf-line)!important;border-radius:0;background:#fff!important;color:var(--cmcf-primary)!important;font-size:30px;line-height:1;cursor:pointer}.cmcf-v2 .cmcf-form{padding:20px}.cmcf-v2 .cmcf-filter-row{display:grid;grid-template-columns:1fr;gap:21px}.cmcf-v2 .cmcf-control-label{font-size:16px}.cmcf-v2 .cmcf-search,.cmcf-v2 .cmcf-filter-menu>summary{border-color:var(--cmcf-line)!important}.cmcf-v2 .cmcf-popover{position:static;width:100%;max-height:300px;margin-top:8px;box-shadow:none}.cmcf-v2 .cmcf-sidebar-actions{position:sticky;bottom:0;z-index:36;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:24px -20px -20px;padding:15px 20px;border-top:1px solid var(--cmcf-line);background:#fff}.cmcf-v2 .cmcf-show,.cmcf-v2 .cmcf-show:hover,.cmcf-v2 .cmcf-show:focus,.cmcf-v2 .cmcf-show:active{display:block;background:var(--cmcf-primary)!important;color:#fff!important}.cmcf-v2 .cmcf-sidebar-actions button{width:100%;min-width:0;padding-inline:10px;white-space:nowrap}.cmcf-v2 .cmcf-show span{color:inherit!important}.cmcf-v2 .cmcf-overlay,.cmcf-v2 .cmcf-overlay:hover,.cmcf-v2 .cmcf-overlay:focus,.cmcf-v2 .cmcf-overlay:active{position:fixed;inset:0;z-index:100001;display:block;width:100%;height:100%;border:0!important;background:rgba(20,22,25,.5)!important;cursor:pointer}.cmcf-v2 .cmcf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cmcf-v2 .cmcf-toolbar .cmcf-result-count{display:none}}\n\t\t\t@media(max-width:620px){.cmcf-v2{padding:16px}.cmcf-v2 .cmcf-grid{grid-template-columns:1fr;gap:18px}.cmcf-v2 .cmcf-card-link{display:grid;grid-template-columns:132px minmax(0,1fr)}.cmcf-v2 .cmcf-media{height:100%;min-height:144px;aspect-ratio:auto}.cmcf-v2 .cmcf-card-copy{padding:17px 15px}.cmcf-v2 .cmcf-card h3{font-size:21px}.cmcf-v2 .cmcf-card p{margin-top:8px;font-size:14px;line-height:1.5}.cmcf-v2 .cmcf-toolbar{justify-content:flex-end}.cmcf-v2 .cmcf-search-wrap kbd{display:none}}\n\t\t\t@media(max-width:1023px){.cmcf-v2 .cmcf-seo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}\n\t\t\t@media(max-width:620px){.cmcf-v2 .cmcf-seo-grid{grid-template-columns:1fr}.cmcf-v2 .cmcf-seo-fallback h2{font-size:21px}}\n\t\t\t@media(max-width:1023px){.cmcf-v2 .cmcf-overlay,.cmcf-v2 .cmcf-overlay:hover,.cmcf-v2 .cmcf-overlay:focus,.cmcf-v2 .cmcf-overlay:active{background:rgba(20,22,25,.5)!important}}\n\t\t\t@media(max-width:1023px){.cmcf-v2{width:100vw;margin-inline:calc(50% - 50vw)}.cmcf-v2 .cmcf-mobile-bar{display:block;width:calc(100% + 40px);min-height:66px;margin:-20px -20px 24px;padding:0;border:0;background:var(--cmcf-primary);box-shadow:0 8px 24px rgba(32,33,36,.14)}.cmcf-v2 .cmcf-mobile-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;width:90%;min-height:66px;margin:0 auto}.cmcf-v2 .cmcf-open,.cmcf-v2 .cmcf-open:hover,.cmcf-v2 .cmcf-open:focus,.cmcf-v2 .cmcf-open:active{min-height:66px;padding:0;border:0!important;background:transparent!important;color:#fff!important;font-size:17px}.cmcf-v2 .cmcf-mobile-result{color:rgba(255,255,255,.82)!important;font-size:15px}.cmcf-v2 .cmcf-card:hover{transform:none;border-color:var(--cmcf-line);box-shadow:0 8px 24px rgba(32,33,36,.05)}.cmcf-v2 .cmcf-card:hover .cmcf-media img{transform:none}.cmcf-v2 .cmcf-sort-control{gap:0}.cmcf-v2 .cmcf-sort-title{display:none}.cmcf-v2 .cmcf-sort-menu>summary{min-width:126px}}\n\t\t\t@media(max-width:620px){.cmcf-v2 .cmcf-mobile-bar{width:calc(100% + 32px);margin:-16px -16px 22px}.cmcf-v2 .cmcf-mobile-bar-inner{width:90%}.cmcf-v2 .cmcf-sort-menu>summary{min-width:116px;height:43px;padding-inline:13px 42px}.cmcf-v2 .cmcf-sort-options{min-width:140px}}\n\t\t\t@media(max-width:620px){.cmcf-v2 .cmcf-card-link,.cmcf-v2 .cmcf-card-link:hover,.cmcf-v2 .cmcf-card-link:focus,.cmcf-v2 .cmcf-card-link:active,.cmcf-v2 .cmcf-card-link:visited{display:grid!important;grid-template-columns:132px minmax(0,1fr)!important}.cmcf-v2 .cmcf-media,.cmcf-v2 .cmcf-card:hover .cmcf-media{width:132px!important;min-width:132px!important;max-width:132px!important;height:100%!important;min-height:144px;aspect-ratio:auto;transform:none!important}.cmcf-v2 .cmcf-media img,.cmcf-v2 .cmcf-card:hover .cmcf-media img{display:block!important;width:100%!important;height:100%!important;max-width:none!important;object-fit:cover!important;transform:none!important}}\n\t\t\t@media(hover:none),(pointer:coarse){.cmcf-v2 .cmcf-card,.cmcf-v2 .cmcf-card:hover{transform:none!important;border-color:var(--cmcf-line)!important;box-shadow:0 8px 24px rgba(32,33,36,.05)!important}.cmcf-v2 .cmcf-media img,.cmcf-v2 .cmcf-card:hover .cmcf-media img{transform:none!important;transition:none!important}}\n\t\t\t@media(prefers-reduced-motion:reduce){.cmcf-v2 .cmcf-sidebar,.cmcf-v2 .cmcf-card,.cmcf-v2 .cmcf-media img{transition:none!important}}\n\t\t<\/style>\n\t\t<script>\n\t\t(function(){\n\t\t\t'use strict';\n\t\t\tvar configs=[\n\t\t\t\t{key:'color',label:'Color',uiKey:'color',color:true},\n\t\t\t\t{key:'wearability',label:'Wearability',uiKey:'wearability'},\n\t\t\t\t{key:'countries',label:'Country',uiKey:'country'}\n\t\t\t];\n\t\t\tvar colorMap={colorless:'#f8f8f2',purple:'#795789',reddish_purple:'#9c4a80',red_purple_or_purple_red:'#a44162',strongly_purplish_red:'#bb3e50',slightly_purplish_red:'#c94d5e',pink:'#df8fa4',red:'#b33a34',orangy_red:'#c84c2b',red_orange_or_orange_red:'#d95a26',reddish_orange:'#e46d2d',orange:'#df7c2d',yellow_orange_or_orange_yellow:'#e8a33a',yellowish_orange:'#e8af48',orangy_yellow:'#e2c447',yellow:'#e6c54a',greenish_yellow:'#b6c54a',yellow_green_or_green_yellow:'#8db84c',strongly_yellowish_green:'#64a54a',yellowish_green:'#79ad4d',slightly_yellowish_green:'#91b457',green:'#4f8b58',very_slightly_bluish_green:'#4f9a74',bluish_green:'#3d9079',very_strongly_bluish_green:'#248b7f',green_blue_or_blue_green:'#368a98',very_strongly_greenish_blue:'#2b82b3',greenish_blue:'#3585ad',very_slightly_greenish_blue:'#4b80ad',blue:'#3974ae',violet_blue_or_blue_violet:'#596bb3',violetish_blue:'#5d62a3',bluish_violet:'#765fa2',violet:'#805aa0',violetish_purple:'#87538f',white:'#ffffff',gray:'#969b9d',brown:'#8a6245',black:'#202321'};\n\t\t\tvar labelMap={colorless:'Colorless',purple:'Purple (P)',reddish_purple:'reddish Purple (rP)',red_purple_or_purple_red:'Red-Purple or Purple-Red (RP\/PR)',strongly_purplish_red:'strongly purplish Red (stpR)',slightly_purplish_red:'slightly purplish Red (slpR)',pink:'Pink',red:'Red (R)',orangy_red:'orangy Red (oR)',red_orange_or_orange_red:'Red-Orange or Orange-Red (RO\/OR)',reddish_orange:'reddish Orange (rO)',orange:'Orange (O)',yellow_orange_or_orange_yellow:'Yellow-Orange or Orange-Yellow (YO\/OY)',yellowish_orange:'yellowish Orange (yO)',orangy_yellow:'orangy Yellow (oY)',yellow:'Yellow (Y)',greenish_yellow:'greenish Yellow (gY)',yellow_green_or_green_yellow:'Yellow-Green or Green-Yellow (YG\/GY)',strongly_yellowish_green:'strongly yellowish Green (styG)',yellowish_green:'yellowish Green (yG)',slightly_yellowish_green:'slightly yellowish Green (slyG)',green:'Green (G)',very_slightly_bluish_green:'very slightly bluish Green (vslbG)',bluish_green:'bluish Green (bG)',very_strongly_bluish_green:'very strongly bluish Green (vstbG)',green_blue_or_blue_green:'Green-Blue or Blue-Green (GB\/BG)',very_strongly_greenish_blue:'very strongly greenish Blue (vstgB)',greenish_blue:'greenish Blue (gB)',very_slightly_greenish_blue:'very slightly greenish Blue (vslgB)',blue:'Blue (B)',violet_blue_or_blue_violet:'Violet-Blue or Blue-Violet (VB\/BV)',violetish_blue:'violetish Blue (vB)',bluish_violet:'bluish Violet (bV)',violet:'Violet (V)',violetish_purple:'violetish Purple (vP)',white:'White',gray:'Gray',brown:'Brown',black:'Black',display_only:'Display only',poor:'Poor',good_too_poor:'Good too poor',good:'Good',very_good:'Very Good',excellent:'Excellent',everyday:'Everyday Wear',frequent:'Frequent Wear',occasional:'Occasional Wear',collector:'Collector \/ Display',cote_d_ivoire:\"Cote d'Ivoire\",guinea_bissau:'Guinea-Bissau',timor_leste:'Timor-Leste',united_states:'United States',united_kingdom:'United Kingdom'};\n\n\t\t\tfunction cleanText(value){\n\t\t\t\tvar text=value===null||value===undefined?'':String(value);\n\t\t\t\tif(text.length>20000){text=text.slice(0,20000);}\n\t\t\t\tif(text.indexOf('&')===-1&&text.indexOf('<')===-1){return text.trim();}\n\t\t\t\tfor(var pass=0;pass<2;pass++){\n\t\t\t\t\tvar parsed=new DOMParser().parseFromString(text,'text\/html');\n\t\t\t\t\tvar decoded=parsed.body?parsed.body.textContent||'':text;\n\t\t\t\t\tif(decoded===text){break;}\n\t\t\t\t\ttext=decoded;\n\t\t\t\t}\n\t\t\t\treturn text.trim();\n\t\t\t}\n\t\t\tfunction cleanLiteralMarkup(scope){var walker=document.createTreeWalker(scope,NodeFilter.SHOW_TEXT),nodes=[],node;while((node=walker.nextNode())){if(String(node.nodeValue||'').toLowerCase().indexOf('data-no-translation')!==-1){nodes.push(node);}}nodes.forEach(function(textNode){textNode.nodeValue=cleanText(textNode.nodeValue);});}\n\t\t\tfunction labelize(value){value=cleanText(value);if(Object.prototype.hasOwnProperty.call(labelMap,value)){return labelMap[value];}return value.replace(\/_\/g,' ').replace(\/\\b\\w\/g,function(c){return c.toUpperCase();});}\n\t\t\tfunction normalize(value){var text=String(value||'').toLowerCase();return text.normalize?text.normalize('NFD').replace(\/[\\u0300-\\u036f]\/g,''):text;}\n\t\t\tfunction values(item,key){var value=item&&item[key];return (Array.isArray(value)?value:(value?[value]:[])).filter(function(entry){return typeof entry==='string'||typeof entry==='number';}).map(function(entry){return String(entry).slice(0,120);});}\n\t\t\tfunction element(tag,className,text){var el=document.createElement(tag);if(className){el.className=className;}if(text!==undefined){el.textContent=text;}return el;}\n\t\t\tfunction variableElement(tag,className,text){var el=element(tag,className,text);el.setAttribute('translate','no');el.setAttribute('data-no-translation','');return el;}\n\t\t\tfunction safeHttpUrl(value,sameOrigin){\n\t\t\t\ttry{\n\t\t\t\t\tvar parsed=new URL(String(value||''),window.location.href);\n\t\t\t\t\tif(parsed.protocol!=='http:'&&parsed.protocol!=='https:'){return '';}\n\t\t\t\t\tif(sameOrigin&&parsed.origin!==window.location.origin){return '';}\n\t\t\t\t\treturn parsed.href;\n\t\t\t\t}catch(error){return '';}\n\t\t\t}\n\t\t\tfunction directoryPath(value){var clean=String(value||'').replace(\/^\\\/+|\\\/+$\/g,'');return clean?'\/'+clean+'\/':'\/';}\n\t\t\tfunction pathContains(path,base){base=directoryPath(base);path='\/' + String(path||'').replace(\/^\\\/+\/, '');return base==='\/'||path===base.slice(0,-1)||path.indexOf(base)===0;}\n\t\t\tfunction knownLanguageSlugs(root){try{var values=JSON.parse(root.dataset.languageSlugs||'[]');return Array.isArray(values)?values.map(function(value){return String(value||'').toLowerCase();}).filter(Boolean):[];}catch(error){return [];}}\n\t\t\tfunction stripKnownLanguagePrefix(relative,root){var parts=String(relative||'').split('\/'),first='';try{first=decodeURIComponent(parts[0]||'').toLowerCase();}catch(error){first=String(parts[0]||'').toLowerCase();}if(first&&knownLanguageSlugs(root).indexOf(first)!==-1){parts.shift();}return parts.join('\/');}\n\t\t\tfunction localizedItemUrl(value,root){\n\t\t\t\tvar itemUrl=safeHttpUrl(value,false),languageHome=safeHttpUrl(root.dataset.languageHome,false),defaultHome=safeHttpUrl(root.dataset.defaultHome,false);\n\t\t\t\tif(!itemUrl||!languageHome||!defaultHome){return itemUrl;}\n\t\t\t\ttry{\n\t\t\t\t\tvar item=new URL(itemUrl),localized=new URL(languageHome),base=new URL(defaultHome);\n\t\t\t\t\tvar isDefault=localized.href.replace(\/\\\/$\/,'')===base.href.replace(\/\\\/$\/,'');\n\t\t\t\t\tif(!isDefault&&item.origin===localized.origin&&pathContains(item.pathname,localized.pathname)){return item.href;}\n\t\t\t\t\tif(item.origin!==base.origin){return item.href;}\n\t\t\t\t\tif(!pathContains(item.pathname,base.pathname)){return item.href;}\n\t\t\t\t\tvar basePath=directoryPath(base.pathname),itemPath='\/' + item.pathname.replace(\/^\\\/+\/,''),relative=basePath==='\/'?itemPath.slice(1):itemPath.slice(basePath.length);relative=stripKnownLanguagePrefix(relative,root);\n\t\t\t\t\tvar localizedPath=isDefault?basePath:directoryPath(localized.pathname);\n\t\t\t\t\titem.protocol=localized.protocol;item.host=localized.host;item.pathname=localizedPath+relative.replace(\/^\\\/+\/, '');\n\t\t\t\t\treturn item.href;\n\t\t\t\t}catch(error){return itemUrl;}\n\t\t\t}\n\t\t\tfunction initialQuery(){\n\t\t\t\ttry{\n\t\t\t\t\tvar params=new URLSearchParams(window.location.search);\n\t\t\t\t\treturn cleanText(params.get('q')||params.get('search')||'').slice(0,160);\n\t\t\t\t}catch(error){return '';}\n\t\t\t}\n\n\t\t\tfunction init(root){\n\t\t\t\tif(root.dataset.ready){return;}root.dataset.ready='1';\n\t\t\t\tcleanLiteralMarkup(root);\n\t\t\t\tvar grid=root.querySelector('[data-grid]'),status=root.querySelector('[data-status]'),empty=root.querySelector('[data-empty]'),resultCount=root.querySelector('[data-result-count]'),mobileResult=root.querySelector('[data-mobile-result]'),activeWrap=root.querySelector('[data-active-filters]'),activeCount=root.querySelector('[data-active-count]'),showCount=root.querySelector('[data-show-count]'),search=root.querySelector('.cmcf-search'),sortMenu=root.querySelector('.cmcf-sort-menu'),sortLabel=root.querySelector('[data-sort-label]'),sortButtons=Array.prototype.slice.call(root.querySelectorAll('[data-sort-value]')),minInput=root.querySelector('[data-hardness-min]'),maxInput=root.querySelector('[data-hardness-max]'),hardnessCount=root.querySelector('[data-hardness-count]'),sentinel=root.querySelector('[data-sentinel]'),form=root.querySelector('.cmcf-form'),sidebar=root.querySelector('.cmcf-sidebar'),overlay=root.querySelector('.cmcf-overlay'),openButton=root.querySelector('.cmcf-open'),closeButton=root.querySelector('.cmcf-close');\n\t\t\t\tvar state={items:[],filtered:[],shown:0,batch:parseInt(root.dataset.batch,10)||48,timer:0,observer:null,sort:'az',facetTranslations:{},ui:{},loading:false,retries:0,retryTimer:0};\n\t\t\t\tfunction beginBoot(){root.classList.remove('cmcf-ready','cmcf-load-error');root.classList.add('cmcf-booting');root.setAttribute('aria-busy','true');var boot=root.querySelector('[data-cmcf-boot-screen]');if(boot){boot.hidden=false;}}\n\t\t\t\tfunction finishBoot(failed){root.classList.remove('cmcf-booting');root.classList.add(failed?'cmcf-load-error':'cmcf-ready');root.setAttribute('aria-busy','false');var boot=root.querySelector('[data-cmcf-boot-screen]');if(boot){boot.hidden=true;}}\n\t\t\t\tvar collator=typeof Intl!=='undefined'&&Intl.Collator?new Intl.Collator(undefined,{sensitivity:'base',numeric:true}):null;\n\t\t\t\tvar prefilledQuery=initialQuery();if(prefilledQuery){search.value=prefilledQuery;}\n\t\t\t\tfunction localized(value,fallback){var cleaned=typeof value==='string'?cleanText(value):'';return cleaned!==''?cleaned:cleanText(fallback||'');}\n\t\t\t\tfunction uiText(key,fallback){return localized(state.ui[key],fallback);}\n\t\t\t\tfunction itemText(item,key){if(!item||typeof item!=='object'){return '';}if(!item._cmcfText||typeof item._cmcfText!=='object'||Array.isArray(item._cmcfText)){item._cmcfText=Object.create(null);}if(!Object.prototype.hasOwnProperty.call(item._cmcfText,key)){item._cmcfText[key]=localized(item[key],'');}return item._cmcfText[key];}\n\t\t\t\tfunction itemSearchText(item){var terms=[item.search||''];if(Array.isArray(item.search_terms)){terms=terms.concat(item.search_terms);}return terms.map(cleanText).join(' ');}\n\t\t\t\tfunction facetLabel(key,value){var facets=state.facetTranslations[key]||{},translated=Object.prototype.hasOwnProperty.call(facets,value)?facets[value]:'';return localized(translated,labelize(value));}\n\n\t\t\t\tfunction setSort(value){state.sort=value==='za'?'za':'az';sortLabel.textContent=state.sort==='za'?uiText('z_to_a','Z to A'):uiText('a_to_z','A to Z');sortButtons.forEach(function(button){button.textContent=button.dataset.sortValue==='za'?uiText('z_to_a','Z to A'):uiText('a_to_z','A to Z');button.setAttribute('aria-pressed',button.dataset.sortValue===state.sort?'true':'false');});if(sortMenu){sortMenu.open=false;}}\n\n\t\t\t\tfunction openDrawer(focusSearch){root.classList.add('is-drawer-open');overlay.hidden=false;sidebar.setAttribute('aria-hidden','false');openButton.setAttribute('aria-expanded','true');document.body.classList.add('cmcf-drawer-open');window.setTimeout(function(){(focusSearch?search:closeButton).focus();},40);}\n\t\t\t\tfunction closeDrawer(restoreFocus){root.classList.remove('is-drawer-open');overlay.hidden=true;openButton.setAttribute('aria-expanded','false');document.body.classList.remove('cmcf-drawer-open');if(window.innerWidth<1024){sidebar.setAttribute('aria-hidden','true');}if(restoreFocus!==false){openButton.focus();}}\n\t\t\t\topenButton.addEventListener('click',function(){openDrawer(false);});closeButton.addEventListener('click',function(){closeDrawer(true);});overlay.addEventListener('click',function(){closeDrawer(true);});root.querySelector('.cmcf-show').addEventListener('click',function(){closeDrawer(true);});\n\t\t\t\tdocument.addEventListener('keydown',function(event){\n\t\t\t\t\tif(event.key==='Escape'&&root.classList.contains('is-drawer-open')){closeDrawer(true);return;}\n\t\t\t\t\tif(event.key==='Escape'){root.querySelectorAll('.cmcf-filter-menu[open],.cmcf-sort-menu[open]').forEach(function(details){details.open=false;});return;}\n\t\t\t\t\tif((event.ctrlKey||event.metaKey)&&String(event.key).toLowerCase()==='k'&&document.querySelector('[data-cmcf-v2]')===root){event.preventDefault();if(window.innerWidth<1024&&!root.classList.contains('is-drawer-open')){openDrawer(true);}else{search.focus();search.select();}}\n\t\t\t\t});\n\t\t\t\twindow.addEventListener('resize',function(){if(window.innerWidth>=1024){root.classList.remove('is-drawer-open');overlay.hidden=true;sidebar.setAttribute('aria-hidden','false');openButton.setAttribute('aria-expanded','false');document.body.classList.remove('cmcf-drawer-open');}else if(!root.classList.contains('is-drawer-open')){sidebar.setAttribute('aria-hidden','true');}});\n\t\t\t\tif(window.innerWidth<1024){sidebar.setAttribute('aria-hidden','true');}\n\n\t\t\t\tfunction buildFacets(){\n\t\t\t\t\tconfigs.forEach(function(config){\n\t\t\t\t\t\tvar slot=root.querySelector('[data-facet-slot=\"'+config.key+'\"]'),totals=new Map();slot.replaceChildren();\n\t\t\t\t\t\tstate.items.forEach(function(item){values(item,config.key).forEach(function(value){totals.set(value,(totals.get(value)||0)+1);});});\n\t\t\t\t\t\tslot.hidden=false;\n\t\t\t\t\t\tvar configLabel=uiText(config.uiKey,config.label);\n\t\t\t\t\t\tslot.appendChild(element('span','cmcf-control-label',configLabel));\n\t\t\t\t\t\tvar details=element('details','cmcf-filter-menu');details.dataset.facet=config.key;\n\t\t\t\t\t\tvar summary=document.createElement('summary'),summaryText=element('span','',configLabel),selected=variableElement('span','cmcf-summary-count'),arrow=element('span','cmcf-menu-arrow');selected.dataset.facetCount=config.key;selected.hidden=true;arrow.setAttribute('aria-hidden','true');summary.appendChild(summaryText);summary.appendChild(selected);summary.appendChild(arrow);details.appendChild(summary);\n\t\t\t\t\t\tvar options=element('div','cmcf-popover cmcf-options');\n\t\t\t\t\t\tArray.from(totals.entries()).sort(function(a,b){return facetLabel(config.key,a[0]).localeCompare(facetLabel(config.key,b[0]));}).forEach(function(entry){\n\t\t\t\t\t\t\tvar option=element('label','cmcf-option'),input=document.createElement('input'),name=element('span','cmcf-option-name'),optionText=element('span','cmcf-option-text',facetLabel(config.key,entry[0])),total=variableElement('span','cmcf-option-total',String(entry[1]));input.type='checkbox';input.name=config.key;input.value=entry[0];optionText.setAttribute('dir','auto');\n\t\t\t\t\t\t\tif(config.color){var swatch=element('span','cmcf-swatch');swatch.style.backgroundColor=Object.prototype.hasOwnProperty.call(colorMap,entry[0])?colorMap[entry[0]]:'#d8d9e1';swatch.setAttribute('aria-hidden','true');name.appendChild(swatch);}name.appendChild(optionText);option.appendChild(input);option.appendChild(name);option.appendChild(total);options.appendChild(option);\n\t\t\t\t\t\t});\n\t\t\t\t\t\tif(!totals.size){options.appendChild(element('p','cmcf-no-options',uiText('no_options','No options assigned yet.')));}\n\t\t\t\t\t\tdetails.appendChild(options);slot.appendChild(details);\n\t\t\t\t\t\tdetails.addEventListener('toggle',function(){if(details.open&&window.innerWidth>=1024){root.querySelectorAll('.cmcf-filter-menu[open]').forEach(function(other){if(other!==details){other.open=false;}});if(sortMenu){sortMenu.open=false;}}});\n\t\t\t\t\t});\n\t\t\t\t\tvar hardness=[];state.items.forEach(function(item){if(Number.isFinite(item.hardness_min)){hardness.push(item.hardness_min);}if(Number.isFinite(item.hardness_max)){hardness.push(item.hardness_max);}});\n\t\t\t\t\tif(hardness.length){var low=Math.min.apply(null,hardness),high=Math.max.apply(null,hardness);minInput.min=low;minInput.max=high;minInput.placeholder=String(low);maxInput.min=low;maxInput.max=high;maxInput.placeholder=String(high);}else{minInput.min='1';minInput.max='10';minInput.placeholder='1';maxInput.min='1';maxInput.max='10';maxInput.placeholder='10';}\n\t\t\t\t}\n\n\t\t\t\tfunction selectedFor(key){return Array.from(form.querySelectorAll('input[name=\"'+key+'\"]:checked')).map(function(input){return input.value;});}\n\t\t\t\tfunction currentCriteria(){\n\t\t\t\t\tvar rawQuery=String(search.value||'').slice(0,160);if(search.value!==rawQuery){search.value=rawQuery;}\n\t\t\t\t\tvar normalizedQuery=normalize(rawQuery).trim();\n\t\t\t\t\tvar selected={};configs.forEach(function(config){selected[config.key]=selectedFor(config.key);});\n\t\t\t\t\tvar wantedMin=minInput.value===''?null:Number(minInput.value),wantedMax=maxInput.value===''?null:Number(maxInput.value);\n\t\t\t\t\treturn {terms:normalizedQuery?normalizedQuery.split(\/\\s+\/).slice(0,16):[],selected:selected,min:Number.isFinite(wantedMin)?wantedMin:null,max:Number.isFinite(wantedMax)?wantedMax:null};\n\t\t\t\t}\n\t\t\t\tfunction matches(item,criteria){\n\t\t\t\t\tif(!item||typeof item!=='object'){return false;}\n\t\t\t\t\tif(criteria.terms.length){if(typeof item._search!=='string'){item._search=normalize(itemSearchText(item));}if(!criteria.terms.every(function(term){return item._search.indexOf(term)!==-1;})){return false;}}\n\t\t\t\t\tfor(var i=0;i<configs.length;i++){var config=configs[i],selected=criteria.selected[config.key];if(selected.length&&!values(item,config.key).some(function(value){return selected.indexOf(value)!==-1;})){return false;}}\n\t\t\t\t\tif(criteria.min!==null||criteria.max!==null){var itemMin=Number.isFinite(item.hardness_min)?item.hardness_min:item.hardness_max,itemMax=Number.isFinite(item.hardness_max)?item.hardness_max:item.hardness_min;if(!Number.isFinite(itemMin)||!Number.isFinite(itemMax)){return false;}if(criteria.min!==null&&itemMax<criteria.min){return false;}if(criteria.max!==null&&itemMin>criteria.max){return false;}}\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tfunction createCard(item){var title=itemText(item,'title'),excerpt=itemText(item,'excerpt'),itemUrl=localizedItemUrl(itemText(item,'url'),root),imageUrl=safeHttpUrl(itemText(item,'image'),false),imageAlt=itemText(item,'image_alt')||((title||'Mineral')+' mineral');if(!itemUrl){return null;}var article=element('article','cmcf-card'),link=element('a','cmcf-card-link'),media=element('div','cmcf-media'),copy=element('div','cmcf-card-copy'),heading=element('h3','',title);heading.setAttribute('dir','auto');link.href=itemUrl;if(imageUrl){var image=document.createElement('img');image.src=imageUrl;image.alt=imageAlt;image.loading='lazy';image.decoding='async';media.appendChild(image);}else{media.appendChild(variableElement('div','cmcf-placeholder',(title||'?').charAt(0).toUpperCase()));}copy.appendChild(heading);if(excerpt){var description=element('p','',excerpt);description.setAttribute('dir','auto');copy.appendChild(description);}link.appendChild(media);link.appendChild(copy);article.appendChild(link);return article;}\n\t\t\t\tfunction appendNext(){var end=Math.min(state.shown+state.batch,state.filtered.length),fragment=document.createDocumentFragment();for(var i=state.shown;i<end;i++){var card=createCard(state.filtered[i]);if(card){fragment.appendChild(card);}}grid.appendChild(fragment);state.shown=end;sentinel.hidden=state.shown>=state.filtered.length;}\n\t\t\t\tfunction updateChips(){\n\t\t\t\t\tactiveWrap.replaceChildren();var count=0;\n\t\t\t\t\tfunction textPart(text){return element('span','cmcf-chip-text',text);}\n\t\t\t\t\tfunction valuePart(text){return variableElement('span','cmcf-chip-value',text);}\n\t\t\t\t\tfunction rangePart(value){return value!==''?valuePart(value):textPart(uiText('any','any'));}\n\t\t\t\t\tfunction chip(parts,remove){var button=element('button','cmcf-chip');button.type='button';(Array.isArray(parts)?parts:[parts]).forEach(function(part){if(part){button.appendChild(part);}});button.addEventListener('click',remove);activeWrap.appendChild(button);count++;}\n\t\t\t\t\tif(search.value.trim()){chip([textPart(uiText('search_prefix','Search')+':'),valuePart(search.value.trim())],function(){search.value='';apply();search.focus();});}\n\t\t\t\t\tconfigs.forEach(function(config){form.querySelectorAll('input[name=\"'+config.key+'\"]:checked').forEach(function(input){chip(textPart(facetLabel(config.key,input.value)),function(){input.checked=false;apply();});});var n=selectedFor(config.key).length,badge=form.querySelector('[data-facet-count=\"'+config.key+'\"]');if(badge){badge.textContent=n;badge.hidden=!n;}});\n\t\t\t\t\tif(minInput.value!==''||maxInput.value!==''){chip([textPart(uiText('hardness_prefix','Hardness')+':'),rangePart(minInput.value),textPart(uiText('to','to')),rangePart(maxInput.value)],function(){minInput.value='';maxInput.value='';apply();});hardnessCount.textContent='1';hardnessCount.hidden=false;}else{hardnessCount.textContent='';hardnessCount.hidden=true;}\n\t\t\t\t\tactiveWrap.hidden=!count;activeCount.textContent=count;activeCount.hidden=!count;\n\t\t\t\t}\n\n\t\t\t\tfunction setResultLabel(node,count,label){if(!node){return;}node.replaceChildren(variableElement('span','cmcf-count-number',Number(count).toLocaleString()),element('span','cmcf-count-word',label));}\n\t\t\t\tfunction apply(){var criteria=currentCriteria();state.filtered=state.items.filter(function(item){return matches(item,criteria);});state.filtered.sort(function(a,b){var first=itemText(a,'title'),second=itemText(b,'title'),result=collator?collator.compare(first,second):first.localeCompare(second);return state.sort==='za'?-result:result;});state.shown=0;grid.replaceChildren();var count=state.filtered.length,label=count===1?uiText('mineral','mineral'):uiText('minerals','minerals');setResultLabel(resultCount,count,label);setResultLabel(mobileResult,count,label);showCount.textContent=count;status.hidden=true;empty.hidden=count!==0;updateChips();if(count){appendNext();}finishBoot(false);}\n\t\t\t\tfunction reset(){form.querySelectorAll('input[type=\"checkbox\"]').forEach(function(input){input.checked=false;});search.value='';minInput.value='';maxInput.value='';setSort('az');apply();}\n\t\t\t\tform.addEventListener('submit',function(event){event.preventDefault();});form.addEventListener('reset',function(event){event.preventDefault();reset();});root.querySelector('[data-empty-reset]').addEventListener('click',reset);form.addEventListener('change',function(event){if(event.target.matches('input[type=\"checkbox\"]')){apply();}});sortButtons.forEach(function(button){button.addEventListener('click',function(){setSort(button.dataset.sortValue);apply();});});if(sortMenu){sortMenu.addEventListener('toggle',function(){if(sortMenu.open){root.querySelectorAll('.cmcf-filter-menu[open]').forEach(function(details){details.open=false;});}});}\n\t\t\t\tfunction delayedApply(){if(search.value.length>160){search.value=search.value.slice(0,160);}window.clearTimeout(state.timer);state.timer=window.setTimeout(apply,140);}search.addEventListener('input',delayedApply);minInput.addEventListener('input',delayedApply);maxInput.addEventListener('input',delayedApply);\n\t\t\t\tdocument.addEventListener('click',function(event){if(window.innerWidth>=1024&&!event.target.closest('.cmcf-filter-menu')&&!event.target.closest('.cmcf-sort-menu')){root.querySelectorAll('.cmcf-filter-menu[open],.cmcf-sort-menu[open]').forEach(function(details){details.open=false;});}});\n\t\t\t\tif('IntersectionObserver' in window){state.observer=new IntersectionObserver(function(entries){if(entries[0].isIntersecting&&!sentinel.hidden){appendNext();}},{rootMargin:'500px 0px'});state.observer.observe(sentinel);}else{window.addEventListener('scroll',function(){if(!sentinel.hidden&&sentinel.getBoundingClientRect().top<window.innerHeight+500){appendNext();}},{passive:true});}\n\n\t\t\t\tfunction load(){\n\t\t\t\t\tif(state.loading){return;}\n\t\t\t\t\tvar indexUrl=safeHttpUrl(root.dataset.indexUrl,true);\n\t\t\t\t\tif(!indexUrl){showLoadError();return;}\n\t\t\t\t\tstate.loading=true;status.hidden=false;status.textContent=uiText('loading','Loading mineral collection...');\n\t\t\t\t\tfetch(indexUrl,{credentials:'same-origin',cache:'no-cache'}).then(function(response){\n\t\t\t\t\t\tif(!response.ok){throw new Error('HTTP '+response.status);}\n\t\t\t\t\t\tvar size=Number(response.headers.get('content-length')||0);if(size>128*1024*1024){throw new Error('Index too large');}\n\t\t\t\t\t\treturn response.json();\n\t\t\t\t\t}).then(function(data){\n\t\t\t\t\t\tdata=data&&typeof data==='object'?data:{};state.loading=false;state.retries=0;state.items=Array.isArray(data.items)?data.items.filter(function(item){return item&&typeof item==='object'&&!Array.isArray(item);}):[];state.facetTranslations=data.facet_translations&&typeof data.facet_translations==='object'&&!Array.isArray(data.facet_translations)?data.facet_translations:{};state.ui=data.ui&&typeof data.ui==='object'&&!Array.isArray(data.ui)?data.ui:{};setSort(state.sort);buildFacets();apply();\n\t\t\t\t\t}).catch(function(){state.loading=false;if(state.retries<2){state.retries++;status.textContent=uiText('loading','Loading mineral collection...');window.clearTimeout(state.retryTimer);state.retryTimer=window.setTimeout(load,state.retries*1200);return;}showLoadError();});\n\t\t\t\t}\n\t\t\t\tfunction showLoadError(){status.hidden=false;status.replaceChildren();status.appendChild(document.createTextNode(uiText('load_error','The mineral collection could not be loaded.')+' '));var retry=element('button','cmcf-reset',uiText('retry','Try again'));retry.type='button';retry.addEventListener('click',function(){state.retries=0;beginBoot();load();},{once:true});status.appendChild(retry);resultCount.textContent=uiText('unavailable','Unavailable');mobileResult.textContent=uiText('unavailable','Unavailable');finishBoot(true);}\n\t\t\t\tload();\n\t\t\t}\n\n\t\t\tfunction initAll(){document.querySelectorAll('[data-cmcf-v2]').forEach(init);}\n\t\t\tif(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',initAll,{once:true});}else{initAll();}\n\t\t})();\n\t\t<\/script>\n\t\t\t\t<section\n\t\t\tid=\"crystals-mineral-collection-v2-1\"\n\t\t\tclass=\"cmcf cmcf-v2 cmcf-booting\"\n\t\t\tdata-cmcf-v2\n\t\t\taria-busy=\"true\"\n\t\t\tdata-index-url=\"https:\/\/crystals.rocks\/wp-content\/uploads\/crystals-mineral-index\/minerals-live-cs_cz.json\"\n\t\t\tdata-language-home=\"https:\/\/crystals.rocks\/cs\/\"\n\t\t\tdata-default-home=\"https:\/\/crystals.rocks\/\"\n\t\t\tdata-language-slugs=\"[&quot;en&quot;,&quot;zh&quot;,&quot;es&quot;,&quot;ru&quot;,&quot;de&quot;,&quot;fr&quot;,&quot;pt&quot;,&quot;ja&quot;,&quot;ko&quot;,&quot;ar&quot;,&quot;it&quot;,&quot;hi&quot;,&quot;id&quot;,&quot;th&quot;,&quot;tr&quot;,&quot;vi&quot;,&quot;pl&quot;,&quot;fa&quot;,&quot;ur&quot;,&quot;nl&quot;,&quot;el&quot;,&quot;sv&quot;,&quot;cs&quot;,&quot;bn&quot;,&quot;ro&quot;,&quot;hu&quot;,&quot;he&quot;,&quot;sw&quot;,&quot;fi&quot;,&quot;nb&quot;,&quot;sk&quot;]\"\n\t\t\tdata-batch=\"48\"\n\t\t\tlang=\"cs-cz\"\n\t\t\tdir=\"ltr\"\n\t\t>\n\t\t\t<div class=\"cmcf-boot-screen\" data-cmcf-boot-screen role=\"status\" aria-live=\"polite\">\n\t\t\t\t<div class=\"cmcf-boot-filter\" aria-hidden=\"true\"><\/div>\n\t\t\t\t<div class=\"cmcf-boot-cards\" aria-hidden=\"true\"><span class=\"cmcf-boot-card\"><\/span><span class=\"cmcf-boot-card\"><\/span><span class=\"cmcf-boot-card\"><\/span><span class=\"cmcf-boot-card\"><\/span><\/div>\n\t\t\t\t<p class=\"cmcf-boot-message\">Loading mineral collection...<\/p>\n\t\t\t<\/div>\n\t\t\t<div class=\"cmcf-seo-fallback\" data-cmcf-seo-fallback>\n\t\t\t<h2>Mineral records<\/h2>\n\t\t\t<div class=\"cmcf-seo-grid\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/bismutotantalite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/bismutotantalite.jpg\" alt=\"bismutotantalit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Bismutotantalit<\/h3>\n\t\t\t\t\t\t\t<p>Bismutotantalit je vz\u00e1cn\u00fd t\u011b\u017ek\u00fd oxidov\u00fd miner\u00e1l tantalu a bismutu pat\u0159\u00edc\u00ed do skupiny kolumbit-tantalit, krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Vyzna\u010duje se mimo\u0159\u00e1dn\u011b vysokou m\u011brnou hmotnost\u00ed (a\u017e 8,98\u20139,0 g\/cm\u00b3), polodiamantov\u00fdm a\u017e prysky\u0159i\u010dn\u00fdm leskem a vysok\u00fdmi indexy lomu; vyskytuje se jako pozdn\u00ed akcesorick\u00fd miner\u00e1l ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech obohacen\u00fdch lithiem, cesiem a tantalem (LCT).<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/cattierite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\" alt=\"kattierit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>kattierit<\/h3>\n\t\t\t\t\t\t\t<p>Katierit je vz\u00e1cn\u00fd sirn\u00edk kobaltu s chemick\u00fdm vzorcem CoS\u2082, pat\u0159\u00edc\u00ed do skupiny pyritu. Poprv\u00e9 byl objeven v bohat\u00fdch stratiformn\u00edch lo\u017eisc\u00edch m\u011bdi a kobaltu v katangsk\u00e9m m\u011bd\u011bn\u00e9m p\u00e1su v Demokratick\u00e9 republice Kongo, typicky se vyskytuje jako kovov\u011b r\u016f\u017eov\u011b \u0161ed\u00e9 a\u017e tmav\u011b \u0161ed\u00e9 mikroskopick\u00e9 krystaly, krychle a zrnit\u00e9 agreg\u00e1ty spolu s dal\u0161\u00edmi sirn\u00edky obecn\u00fdch kov\u016f.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/delhayelite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\" alt=\"delhayelit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Delhayelite<\/h3>\n\t\t\t\t\t\t\t<p>Delhayelit je vz\u00e1cn\u00fd, strukturn\u011b slo\u017eit\u00fd hydratovan\u00fd draselno-v\u00e1penato-sodn\u00fd fylosilik\u00e1tov\u00fd miner\u00e1l obsahuj\u00edc\u00ed nezbytn\u00e9 t\u011bkav\u00e9 halogeny a s\u00edranov\u00e9 anionty (Cl, F a SO\u2084\u00b2\u207b). P\u016fvodn\u011b objeven\u00fd v k\u0159em\u00edkem nedosycen\u00fdch peralkalick\u00fdch nefelinitov\u00fdch l\u00e1v\u00e1ch hory Shaheru v Demokratick\u00e9 republice Kongo, krystalizuje v koso\u010dtvere\u010dn\u00e9 krystalov\u00e9 soustav\u011b a slou\u017e\u00ed jako d\u016fle\u017eit\u00fd indik\u00e1torov\u00fd miner\u00e1l pro pozdn\u00ed f\u00e1zi t\u011bkav\u00fdch...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/edscottite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/edscottite.jpg\" alt=\"Edscottit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Edscottit<\/h3>\n\t\t\t\t\t\t\t<p>Edscottit je extr\u00e9mn\u011b vz\u00e1cn\u00fd miner\u00e1l \u017eelezn\u00e9ho karbidu (Fe5C2), objeven\u00fd uvnit\u0159 \u017eelezn\u00e9ho meteoritu Wedderburn, kter\u00fd vznikl jako f\u00e1ze b\u011bhem pomal\u00e9ho ochlazov\u00e1n\u00ed j\u00e1dra starobyl\u00e9ho planetesim\u00e1lu.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ferropericlase\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\" alt=\"ferroperiklas\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>ferroperiklas<\/h3>\n\t\t\t\t\t\t\t<p>Ferroperiklas (nebo magnesiow\u00fcstit) je \u017eelezonosn\u00e1 odr\u016fda nebo druh periklasu, reprezentovan\u00e1 chemick\u00fdm vzorcem (Mg,Fe)O. Je interpretov\u00e1na jako jedna z hlavn\u00edch miner\u00e1ln\u00edch slo\u017eek spodn\u00edho zemsk\u00e9ho pl\u00e1\u0161t\u011b spolu se silik\u00e1tov\u00fdm perovskitem, \u010dasto se vyskytuj\u00edc\u00ed jako mikroinkluze v diamantech z hlubok\u00e9ho pl\u00e1\u0161t\u011b.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/forsterite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\" alt=\"Forsterit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Forsterit<\/h3>\n\t\t\t\t\t\t\t<p>Forsterit je na ho\u0159\u010d\u00edk bohat\u00fd koncov\u00fd \u010dlen \u0159ady tuh\u00fdch roztok\u016f oliv\u00ednu (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Jako d\u016fle\u017eit\u00fd horninotvorn\u00fd orthosilik\u00e1t (nesosilik\u00e1t) tvo\u0159\u00ed dominantn\u00ed objemovou f\u00e1zi svrchn\u00edho pl\u00e1\u0161t\u011b Zem\u011b (peridotit\/dunit) a je hojn\u011b zastoupen v ultramafick\u00fdch vyv\u0159el\u00fdch hornin\u00e1ch, kontaktn\u011b metamorfovan\u00fdch dolomitick\u00fdch v\u00e1penc\u00edch a primitivn\u00edch chondritick\u00fdch meteoritech. P\u0159echodn\u00e9 variety drahokamov\u00e9 kvality bohat\u00e9 na...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/galena\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\" alt=\"Galena\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Galena<\/h3>\n\t\t\t\t\t\t\t<p>Galena je prim\u00e1rn\u00ed p\u0159\u00edrodn\u00ed miner\u00e1ln\u00ed formou sulfidu olovnat\u00e9ho (PbS), krystalizuj\u00edc\u00ed v izometrick\u00e9 (kubick\u00e9) krystalov\u00e9 soustav\u011b s krystalovou strukturou typu halitu (kamenn\u00e9 soli). Jako nejd\u016fle\u017eit\u011bj\u0161\u00ed a nejhojn\u011bj\u0161\u00ed ruda olova na sv\u011bt\u011b \u2013 a v\u00fdznamn\u00fd historick\u00fd zdroj st\u0159\u00edbra jako vedlej\u0161\u00edho produktu \u2013 je galena cen\u011bna pro svou vysokou specifickou hmotnost (~7,6), leskl\u00fd kovov\u00fd lesk, olov\u011bn\u011b \u0161ed\u00fd vryp a dokonalou krychlovou...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/gerstleyite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/gerstleyite-768x767.jpg\" alt=\"gerstleyite (2)\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Gerstleyit<\/h3>\n\t\t\t\t\t\t\t<p>Gerstleyit je extr\u00e9mn\u011b vz\u00e1cn\u00fd hydr\u00e1tovan\u00fd sodn\u00fd sulfosol antimonu a arsenu, zn\u00e1m\u00fd jako jeden z prvn\u00edch objeven\u00fdch alk\u00e1liemi bohat\u00fdch sulfosol\u00ed. Obvykle se vyskytuje v podob\u011b cinnabaritov\u011b \u010derven\u00fdch a\u017e tmav\u011b \u010derven\u00fdch vl\u00e1knit\u00fdch nebo deskovit\u00fdch agreg\u00e1t\u016f v jezern\u00edch borit\u00fdch lo\u017eisc\u00edch.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/geversite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/geversite.jpg\" alt=\"geversit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>geversit<\/h3>\n\t\t\t\t\t\t\t<p>Geversit je vz\u00e1cn\u00fd miner\u00e1l skupiny platiny (PGM) s chemick\u00fdm slo\u017een\u00edm PtSb\u2082, krystalizuj\u00edc\u00ed v izometrick\u00e9m strukturn\u00edm typu pyritu. Poprv\u00e9 byl pops\u00e1n z dolu Driekop v Bushveldsk\u00e9m vyv\u0159el\u00e9m komplexu v Ji\u017en\u00ed Africe; vytv\u00e1\u0159\u00ed mikroskopick\u00e1 kovov\u00e1 zrna, euhedr\u00e1ln\u00ed krychle a komplexn\u00ed sr\u016fsty, kter\u00e9 se typicky vyskytuj\u00ed v ultramafick\u00fdch hornin\u00e1ch, chromititech a magmatick\u00fdch sulfidick\u00fdch lo\u017eisk\u00e1ch.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/halite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x768.png\" alt=\"Halit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Halit<\/h3>\n\t\t\t\t\t\t\t<p>Halit je miner\u00e1ln\u00ed forma chloridu sodn\u00e9ho (NaCl), b\u011b\u017en\u011b zn\u00e1m\u00fd jako kamenn\u00e1 s\u016fl. Tvo\u0159\u00ed izometrick\u00e9 krystaly v evapora\u010dn\u00edch usazenin\u00e1ch a je nezbytn\u00fd pro lidsk\u00fd \u017eivot, pr\u016fmysl a chemickou v\u00fdrobu.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/kernowite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/imgi_115_kernowite.png\" alt=\"Kernowite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Kernowite<\/h3>\n\t\t\t\t\t\t\t<p>Kernowit je vz\u00e1cn\u00fd hydratovan\u00fd miner\u00e1l m\u011b\u010fnat\u00e9ho \u017eelezn\u00e9ho arsen\u00e1tu objeven\u00fd v St Day, Cornwall, Velk\u00e1 Brit\u00e1nie. Je to \u017eelezem dominantn\u00ed analog lirokonitu. Proslul\u00fd sv\u00fdmi v\u00fdrazn\u011b smaragdov\u011b zelen\u00fdmi krystaly pat\u0159\u00ed do monoklinick\u00e9 soustavy a typicky se vyskytuje jako tabulkovit\u00e9 a\u017e kl\u00ednovit\u00e9 krystaly v oxidovan\u00fdch z\u00f3n\u00e1ch m\u011bd\u011bn\u00fdch lo\u017eisek.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/krotite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/krotite-768x549.png\" alt=\"krot\u00edte\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Krotitel\u00e9<\/h3>\n\t\t\t\t\t\t\t<p>Krotit je miner\u00e1l s n\u00edzk\u00fdm tlakem a vysokou teplotou, kter\u00fd pat\u0159\u00ed mezi oxidy hlini\u010ditanu v\u00e1penat\u00e9ho (CaAl\u2082O\u2084) a byl objeven v refraktern\u00edch inkluz\u00edch primitivn\u00edch kondritick\u00fdch meteorit\u016f. Slou\u017e\u00ed jako jeden z nejstar\u0161\u00edch pevn\u00fdch materi\u00e1l\u016f vznikl\u00fdch ve slune\u010dn\u00ed mlhovin\u011b.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/manandonite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/manandonite-768x596.jpg\" alt=\"Manandonit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Manandonit<\/h3>\n\t\t\t\t\t\t\t<p>Manandonit je mimo\u0159\u00e1dn\u011b vz\u00e1cn\u00fd, lithium- a bor obsahuj\u00edc\u00ed trioktaedrick\u00fd-dioktaedrick\u00fd fylosilik\u00e1tov\u00fd miner\u00e1ln\u00ed druh, pat\u0159\u00edc\u00ed strukturn\u011b do skupiny 1:1 serpentin-kaolinit. Poprv\u00e9 zdokumentov\u00e1n ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech Madagaskaru, je v mineralogii jedine\u010dn\u00fd jako jeden z m\u00e1la vrstevnat\u00fdch silik\u00e1t\u016f, kter\u00e9 p\u0159ij\u00edmaj\u00ed esenci\u00e1ln\u00ed strukturn\u00ed bor do tetraedrick\u00fdch vrstev spolu s esenci\u00e1ln\u00edm oktaedrick\u00fdm lithiem a...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/naldrettite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/naldrettite-768x512.jpg\" alt=\"Naldrettit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Naldrettit<\/h3>\n\t\t\t\t\t\t\t<p>Naldrettit je vz\u00e1cn\u00fd miner\u00e1l palladiov\u00e9ho antimoniidu (Pd2Sb), objeven\u00fd v t\u011b\u017eebn\u00ed oblasti Sudbury, kter\u00fd vznikl za pozdn\u011b magmatick\u00fdch hydroterm\u00e1ln\u00edch podm\u00ednek v lo\u017eisc\u00edch niklov\u011b-medov\u00fdch sulfid\u016f.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/pseudorutile\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Pseudorutile-2.gif\" alt=\"pseudorutil\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>pseudorutil<\/h3>\n\t\t\t\t\t\t\t<p>Pseudorutil je p\u0159echodn\u00fd miner\u00e1l oxidu titanu a \u017eeleza, kter\u00fd vznik\u00e1 p\u0159edev\u0161\u00edm b\u011bhem n\u00edzkoteplotn\u00edho zv\u011btr\u00e1v\u00e1n\u00ed a postupn\u00e9ho vyluhov\u00e1n\u00ed ilmenitu v lo\u017eisc\u00edch t\u011b\u017ek\u00fdch miner\u00e1ln\u00edch p\u00edsk\u016f. Strukturn\u011b a chemicky odli\u0161n\u00fd od rutilu a ilmenitu hraje z\u00e1sadn\u00ed p\u0159echodnou roli v supergenn\u00ed altera\u010dn\u00ed sekvenci od ilmenitu k leukoxenu a sekund\u00e1rn\u00edmu rutilu\/anatasu, \u010d\u00edm\u017e se st\u00e1v\u00e1 nezbytnou f\u00e1z\u00ed v glob\u00e1ln\u00ed...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/quartz\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Quartz-768x575.jpg\" alt=\"k\u0159emen\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>k\u0159emen<\/h3>\n\t\t\t\t\t\t\t<p>K\u0159emen je definitivn\u00ed n\u00edzkoteplotn\u00ed trigon\u00e1ln\u00ed polymorf oxidu k\u0159emi\u010dit\u00e9ho (SiO\u2082), stabiln\u00ed a\u017e do 573 \u00b0C p\u0159i okoln\u00edm tlaku. Jako ur\u010duj\u00edc\u00ed m\u011b\u0159\u00edtko tvrdosti 7 podle Mohse a jeden z nejhojn\u011bj\u0161\u00edch horninotvorn\u00fdch tektosilik\u00e1t\u016f s kostrovou strukturou v zemsk\u00e9 kontinent\u00e1ln\u00ed k\u016f\u0159e je k\u0159emen proslul\u00fd svou silnou piezoelekt\u0159inou, chemickou odolnost\u00ed, absenc\u00ed \u0161t\u011bpnosti a rozs\u00e1hl\u00fdm souborem...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ruby\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/imgi_212_Cut_Ruby_Image-768x395.jpg\" alt=\"Ruby\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Ruby<\/h3>\n\t\t\t\t\t\t\t<p>Rub\u00edn je presti\u017en\u00ed \u010dervenou, \u0161perka\u0159skou odr\u016fdou miner\u00e1ln\u00edho druhu korund (oxid hlinit\u00fd, Al\u2082O\u2083), zbarven\u00fd p\u0159ev\u00e1\u017en\u011b stopov\u00fdm mno\u017estv\u00edm chromu (Cr\u00b3\u207a substituuj\u00edc\u00ed Al\u00b3\u207a v oktaedrick\u00e9 koordinaci). Proslul\u00fd jako jeden z tradi\u010dn\u00edch hlavn\u00edch drahokam\u016f vykazuje v\u00fdjime\u010dnou Mohsovu tvrdost (9), vysok\u00e9 indexy lomu, v\u00fdrazn\u00fd pleochroismus a \u017eivou \u010dervenou fluorescenci vyvolanou chromem pod dlouhovlnn\u00fdm UV...<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"cmcf-seo-card\">\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/sicherite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/sicherite-3-768x606.jpg\" alt=\"Zajist\u011bte\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Zajist\u011bte<\/h3>\n\t\t\t\t\t\t\t<p>Sicherite je velmi vz\u00e1cn\u00fd miner\u00e1l thalium arsenidu sulfosalu, pat\u0159\u00edc\u00ed do ortorombick\u00e9 krystalick\u00e9 soustavy, objeven\u00fd poprv\u00e9 v dutin\u00e1ch triasov\u00fdch dolomit\u016f na zn\u00e1m\u00e9m Lengenbachov\u011b lomu ve \u0160v\u00fdcarsku.<\/p>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"ItemList\",\"name\":\"Mineral records\",\"numberOfItems\":18,\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Bismutotantalit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/bismutotantalite\/\",\"description\":\"Bismutotantalit je vz\u00e1cn\u00fd t\u011b\u017ek\u00fd oxidov\u00fd miner\u00e1l tantalu a bismutu pat\u0159\u00edc\u00ed do skupiny kolumbit-tantalit, krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Vyzna\u010duje se mimo\u0159\u00e1dn\u011b vysokou m\u011brnou hmotnost\u00ed (a\u017e 8,98\u20139,0 g\/cm\u00b3), polodiamantov\u00fdm a\u017e prysky\u0159i\u010dn\u00fdm leskem a vysok\u00fdmi indexy lomu; vyskytuje se jako pozdn\u00ed akcesorick\u00fd miner\u00e1l ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech obohacen\u00fdch lithiem, cesiem a tantalem (LCT).\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/bismutotantalite.jpg\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"kattierit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/cattierite\/\",\"description\":\"Katierit je vz\u00e1cn\u00fd sirn\u00edk kobaltu s chemick\u00fdm vzorcem CoS\u2082, pat\u0159\u00edc\u00ed do skupiny pyritu. Poprv\u00e9 byl objeven v bohat\u00fdch stratiformn\u00edch lo\u017eisc\u00edch m\u011bdi a kobaltu v katangsk\u00e9m m\u011bd\u011bn\u00e9m p\u00e1su v Demokratick\u00e9 republice Kongo, typicky se vyskytuje jako kovov\u011b r\u016f\u017eov\u011b \u0161ed\u00e9 a\u017e tmav\u011b \u0161ed\u00e9 mikroskopick\u00e9 krystaly, krychle a zrnit\u00e9 agreg\u00e1ty spolu s dal\u0161\u00edmi sirn\u00edky obecn\u00fdch kov\u016f.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Delhayelite\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/delhayelite\/\",\"description\":\"Delhayelit je vz\u00e1cn\u00fd, strukturn\u011b slo\u017eit\u00fd hydratovan\u00fd draselno-v\u00e1penato-sodn\u00fd fylosilik\u00e1tov\u00fd miner\u00e1l obsahuj\u00edc\u00ed nezbytn\u00e9 t\u011bkav\u00e9 halogeny a s\u00edranov\u00e9 anionty (Cl, F a SO\u2084\u00b2\u207b). P\u016fvodn\u011b objeven\u00fd v k\u0159em\u00edkem nedosycen\u00fdch peralkalick\u00fdch nefelinitov\u00fdch l\u00e1v\u00e1ch hory Shaheru v Demokratick\u00e9 republice Kongo, krystalizuje v koso\u010dtvere\u010dn\u00e9 krystalov\u00e9 soustav\u011b a slou\u017e\u00ed jako d\u016fle\u017eit\u00fd indik\u00e1torov\u00fd miner\u00e1l pro pozdn\u00ed f\u00e1zi t\u011bkav\u00fdch...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Edscottit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/edscottite\/\",\"description\":\"Edscottit je extr\u00e9mn\u011b vz\u00e1cn\u00fd miner\u00e1l \u017eelezn\u00e9ho karbidu (Fe5C2), objeven\u00fd uvnit\u0159 \u017eelezn\u00e9ho meteoritu Wedderburn, kter\u00fd vznikl jako f\u00e1ze b\u011bhem pomal\u00e9ho ochlazov\u00e1n\u00ed j\u00e1dra starobyl\u00e9ho planetesim\u00e1lu.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/edscottite.jpg\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"ferroperiklas\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/ferropericlase\/\",\"description\":\"Ferroperiklas (nebo magnesiow\u00fcstit) je \u017eelezonosn\u00e1 odr\u016fda nebo druh periklasu, reprezentovan\u00e1 chemick\u00fdm vzorcem (Mg,Fe)O. Je interpretov\u00e1na jako jedna z hlavn\u00edch miner\u00e1ln\u00edch slo\u017eek spodn\u00edho zemsk\u00e9ho pl\u00e1\u0161t\u011b spolu se silik\u00e1tov\u00fdm perovskitem, \u010dasto se vyskytuj\u00edc\u00ed jako mikroinkluze v diamantech z hlubok\u00e9ho pl\u00e1\u0161t\u011b.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"Forsterit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/forsterite\/\",\"description\":\"Forsterit je na ho\u0159\u010d\u00edk bohat\u00fd koncov\u00fd \u010dlen \u0159ady tuh\u00fdch roztok\u016f oliv\u00ednu (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Jako d\u016fle\u017eit\u00fd horninotvorn\u00fd orthosilik\u00e1t (nesosilik\u00e1t) tvo\u0159\u00ed dominantn\u00ed objemovou f\u00e1zi svrchn\u00edho pl\u00e1\u0161t\u011b Zem\u011b (peridotit\/dunit) a je hojn\u011b zastoupen v ultramafick\u00fdch vyv\u0159el\u00fdch hornin\u00e1ch, kontaktn\u011b metamorfovan\u00fdch dolomitick\u00fdch v\u00e1penc\u00edch a primitivn\u00edch chondritick\u00fdch meteoritech. P\u0159echodn\u00e9 variety drahokamov\u00e9 kvality bohat\u00e9 na...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\"},{\"@type\":\"ListItem\",\"position\":7,\"name\":\"Galena\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/galena\/\",\"description\":\"Galena je prim\u00e1rn\u00ed p\u0159\u00edrodn\u00ed miner\u00e1ln\u00ed formou sulfidu olovnat\u00e9ho (PbS), krystalizuj\u00edc\u00ed v izometrick\u00e9 (kubick\u00e9) krystalov\u00e9 soustav\u011b s krystalovou strukturou typu halitu (kamenn\u00e9 soli). Jako nejd\u016fle\u017eit\u011bj\u0161\u00ed a nejhojn\u011bj\u0161\u00ed ruda olova na sv\u011bt\u011b \u2013 a v\u00fdznamn\u00fd historick\u00fd zdroj st\u0159\u00edbra jako vedlej\u0161\u00edho produktu \u2013 je galena cen\u011bna pro svou vysokou specifickou hmotnost (~7,6), leskl\u00fd kovov\u00fd lesk, olov\u011bn\u011b \u0161ed\u00fd vryp a dokonalou krychlovou...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\"},{\"@type\":\"ListItem\",\"position\":8,\"name\":\"Gerstleyit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/gerstleyite\/\",\"description\":\"Gerstleyit je extr\u00e9mn\u011b vz\u00e1cn\u00fd hydr\u00e1tovan\u00fd sodn\u00fd sulfosol antimonu a arsenu, zn\u00e1m\u00fd jako jeden z prvn\u00edch objeven\u00fdch alk\u00e1liemi bohat\u00fdch sulfosol\u00ed. Obvykle se vyskytuje v podob\u011b cinnabaritov\u011b \u010derven\u00fdch a\u017e tmav\u011b \u010derven\u00fdch vl\u00e1knit\u00fdch nebo deskovit\u00fdch agreg\u00e1t\u016f v jezern\u00edch borit\u00fdch lo\u017eisc\u00edch.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/gerstleyite-768x767.jpg\"},{\"@type\":\"ListItem\",\"position\":9,\"name\":\"geversit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/geversite\/\",\"description\":\"Geversit je vz\u00e1cn\u00fd miner\u00e1l skupiny platiny (PGM) s chemick\u00fdm slo\u017een\u00edm PtSb\u2082, krystalizuj\u00edc\u00ed v izometrick\u00e9m strukturn\u00edm typu pyritu. Poprv\u00e9 byl pops\u00e1n z dolu Driekop v Bushveldsk\u00e9m vyv\u0159el\u00e9m komplexu v Ji\u017en\u00ed Africe; vytv\u00e1\u0159\u00ed mikroskopick\u00e1 kovov\u00e1 zrna, euhedr\u00e1ln\u00ed krychle a komplexn\u00ed sr\u016fsty, kter\u00e9 se typicky vyskytuj\u00ed v ultramafick\u00fdch hornin\u00e1ch, chromititech a magmatick\u00fdch sulfidick\u00fdch lo\u017eisk\u00e1ch.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/geversite.jpg\"},{\"@type\":\"ListItem\",\"position\":10,\"name\":\"Halit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/halite\/\",\"description\":\"Halit je miner\u00e1ln\u00ed forma chloridu sodn\u00e9ho (NaCl), b\u011b\u017en\u011b zn\u00e1m\u00fd jako kamenn\u00e1 s\u016fl. Tvo\u0159\u00ed izometrick\u00e9 krystaly v evapora\u010dn\u00edch usazenin\u00e1ch a je nezbytn\u00fd pro lidsk\u00fd \u017eivot, pr\u016fmysl a chemickou v\u00fdrobu.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x768.png\"},{\"@type\":\"ListItem\",\"position\":11,\"name\":\"Kernowite\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/kernowite\/\",\"description\":\"Kernowit je vz\u00e1cn\u00fd hydratovan\u00fd miner\u00e1l m\u011b\u010fnat\u00e9ho \u017eelezn\u00e9ho arsen\u00e1tu objeven\u00fd v St Day, Cornwall, Velk\u00e1 Brit\u00e1nie. Je to \u017eelezem dominantn\u00ed analog lirokonitu. Proslul\u00fd sv\u00fdmi v\u00fdrazn\u011b smaragdov\u011b zelen\u00fdmi krystaly pat\u0159\u00ed do monoklinick\u00e9 soustavy a typicky se vyskytuje jako tabulkovit\u00e9 a\u017e kl\u00ednovit\u00e9 krystaly v oxidovan\u00fdch z\u00f3n\u00e1ch m\u011bd\u011bn\u00fdch lo\u017eisek.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/imgi_115_kernowite.png\"},{\"@type\":\"ListItem\",\"position\":12,\"name\":\"Krotitel\u00e9\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/krotite\/\",\"description\":\"Krotit je miner\u00e1l s n\u00edzk\u00fdm tlakem a vysokou teplotou, kter\u00fd pat\u0159\u00ed mezi oxidy hlini\u010ditanu v\u00e1penat\u00e9ho (CaAl\u2082O\u2084) a byl objeven v refraktern\u00edch inkluz\u00edch primitivn\u00edch kondritick\u00fdch meteorit\u016f. Slou\u017e\u00ed jako jeden z nejstar\u0161\u00edch pevn\u00fdch materi\u00e1l\u016f vznikl\u00fdch ve slune\u010dn\u00ed mlhovin\u011b.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/krotite-768x549.png\"},{\"@type\":\"ListItem\",\"position\":13,\"name\":\"Manandonit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/manandonite\/\",\"description\":\"Manandonit je mimo\u0159\u00e1dn\u011b vz\u00e1cn\u00fd, lithium- a bor obsahuj\u00edc\u00ed trioktaedrick\u00fd-dioktaedrick\u00fd fylosilik\u00e1tov\u00fd miner\u00e1ln\u00ed druh, pat\u0159\u00edc\u00ed strukturn\u011b do skupiny 1:1 serpentin-kaolinit. Poprv\u00e9 zdokumentov\u00e1n ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech Madagaskaru, je v mineralogii jedine\u010dn\u00fd jako jeden z m\u00e1la vrstevnat\u00fdch silik\u00e1t\u016f, kter\u00e9 p\u0159ij\u00edmaj\u00ed esenci\u00e1ln\u00ed strukturn\u00ed bor do tetraedrick\u00fdch vrstev spolu s esenci\u00e1ln\u00edm oktaedrick\u00fdm lithiem a...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/manandonite-768x596.jpg\"},{\"@type\":\"ListItem\",\"position\":14,\"name\":\"Naldrettit\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/naldrettite\/\",\"description\":\"Naldrettit je vz\u00e1cn\u00fd miner\u00e1l palladiov\u00e9ho antimoniidu (Pd2Sb), objeven\u00fd v t\u011b\u017eebn\u00ed oblasti Sudbury, kter\u00fd vznikl za pozdn\u011b magmatick\u00fdch hydroterm\u00e1ln\u00edch podm\u00ednek v lo\u017eisc\u00edch niklov\u011b-medov\u00fdch sulfid\u016f.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/naldrettite-768x512.jpg\"},{\"@type\":\"ListItem\",\"position\":15,\"name\":\"pseudorutil\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/pseudorutile\/\",\"description\":\"Pseudorutil je p\u0159echodn\u00fd miner\u00e1l oxidu titanu a \u017eeleza, kter\u00fd vznik\u00e1 p\u0159edev\u0161\u00edm b\u011bhem n\u00edzkoteplotn\u00edho zv\u011btr\u00e1v\u00e1n\u00ed a postupn\u00e9ho vyluhov\u00e1n\u00ed ilmenitu v lo\u017eisc\u00edch t\u011b\u017ek\u00fdch miner\u00e1ln\u00edch p\u00edsk\u016f. Strukturn\u011b a chemicky odli\u0161n\u00fd od rutilu a ilmenitu hraje z\u00e1sadn\u00ed p\u0159echodnou roli v supergenn\u00ed altera\u010dn\u00ed sekvenci od ilmenitu k leukoxenu a sekund\u00e1rn\u00edmu rutilu\/anatasu, \u010d\u00edm\u017e se st\u00e1v\u00e1 nezbytnou f\u00e1z\u00ed v glob\u00e1ln\u00ed...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Pseudorutile-2.gif\"},{\"@type\":\"ListItem\",\"position\":16,\"name\":\"k\u0159emen\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/quartz\/\",\"description\":\"K\u0159emen je definitivn\u00ed n\u00edzkoteplotn\u00ed trigon\u00e1ln\u00ed polymorf oxidu k\u0159emi\u010dit\u00e9ho (SiO\u2082), stabiln\u00ed a\u017e do 573 \u00b0C p\u0159i okoln\u00edm tlaku. Jako ur\u010duj\u00edc\u00ed m\u011b\u0159\u00edtko tvrdosti 7 podle Mohse a jeden z nejhojn\u011bj\u0161\u00edch horninotvorn\u00fdch tektosilik\u00e1t\u016f s kostrovou strukturou v zemsk\u00e9 kontinent\u00e1ln\u00ed k\u016f\u0159e je k\u0159emen proslul\u00fd svou silnou piezoelekt\u0159inou, chemickou odolnost\u00ed, absenc\u00ed \u0161t\u011bpnosti a rozs\u00e1hl\u00fdm souborem...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Quartz-768x575.jpg\"},{\"@type\":\"ListItem\",\"position\":17,\"name\":\"Ruby\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/ruby\/\",\"description\":\"Rub\u00edn je presti\u017en\u00ed \u010dervenou, \u0161perka\u0159skou odr\u016fdou miner\u00e1ln\u00edho druhu korund (oxid hlinit\u00fd, Al\u2082O\u2083), zbarven\u00fd p\u0159ev\u00e1\u017en\u011b stopov\u00fdm mno\u017estv\u00edm chromu (Cr\u00b3\u207a substituuj\u00edc\u00ed Al\u00b3\u207a v oktaedrick\u00e9 koordinaci). Proslul\u00fd jako jeden z tradi\u010dn\u00edch hlavn\u00edch drahokam\u016f vykazuje v\u00fdjime\u010dnou Mohsovu tvrdost (9), vysok\u00e9 indexy lomu, v\u00fdrazn\u00fd pleochroismus a \u017eivou \u010dervenou fluorescenci vyvolanou chromem pod dlouhovlnn\u00fdm UV...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/imgi_212_Cut_Ruby_Image-768x395.jpg\"},{\"@type\":\"ListItem\",\"position\":18,\"name\":\"Zajist\u011bte\",\"url\":\"https:\/\/crystals.rocks\/cs\/minerals\/sicherite\/\",\"description\":\"Sicherite je velmi vz\u00e1cn\u00fd miner\u00e1l thalium arsenidu sulfosalu, pat\u0159\u00edc\u00ed do ortorombick\u00e9 krystalick\u00e9 soustavy, objeven\u00fd poprv\u00e9 v dutin\u00e1ch triasov\u00fdch dolomit\u016f na zn\u00e1m\u00e9m Lengenbachov\u011b lomu ve \u0160v\u00fdcarsku.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/sicherite-3-768x606.jpg\"}]}<\/script>\t\t\t<div class=\"cmcf-mobile-bar\">\n\t\t\t\t<div class=\"cmcf-mobile-bar-inner\">\n\t\t\t\t\t<button class=\"cmcf-open\" type=\"button\" aria-expanded=\"false\" aria-controls=\"crystals-mineral-collection-v2-1-filters\">\n\t\t\t\t\t\tFilters <span class=\"cmcf-open-count\" data-active-count translate=\"no\" data-no-translation hidden>0<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t\t<div class=\"cmcf-mobile-result\" data-mobile-result aria-live=\"polite\">Loading minerals...<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t\t<button class=\"cmcf-overlay\" type=\"button\" aria-label=\"Close filters\" tabindex=\"-1\" hidden><\/button>\n\t\t\t<aside id=\"crystals-mineral-collection-v2-1-filters\" class=\"cmcf-sidebar\" aria-label=\"Mineral filters\" aria-hidden=\"false\">\n\t\t\t\t<div class=\"cmcf-sidebar-head\">\n\t\t\t\t\t<div><p class=\"cmcf-eyebrow\">Mineral collection<\/p><h2>Filters<\/h2><\/div>\n\t\t\t\t\t<button class=\"cmcf-close\" type=\"button\" aria-label=\"Close filters\">&times;<\/button>\n\t\t\t\t<\/div>\n\n\t\t\t\t<form class=\"cmcf-form\" action=\"#\" novalidate>\n\t\t\t\t\t<div class=\"cmcf-filter-row\">\n\t\t\t\t\t\t<div class=\"cmcf-control cmcf-search-control\">\n\t\t\t\t\t\t\t<label class=\"cmcf-control-label\" for=\"crystals-mineral-collection-v2-1-search\">Search<\/label>\n\t\t\t\t\t\t\t<div class=\"cmcf-search-wrap\">\n\t\t\t\t\t\t\t\t<input id=\"crystals-mineral-collection-v2-1-search\" class=\"cmcf-search\" type=\"search\" placeholder=\"Search by name or formula\" autocomplete=\"off\" maxlength=\"160\" enterkeyhint=\"search\" spellcheck=\"false\">\n\t\t\t\t\t\t\t\t<kbd translate=\"no\" data-no-translation>Ctrl K<\/kbd>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"cmcf-control\" data-facet-slot=\"color\"><\/div>\n\t\t\t\t\t\t<div class=\"cmcf-control\" data-facet-slot=\"wearability\"><\/div>\n\t\t\t\t\t\t<div class=\"cmcf-control\" data-hardness-group>\n\t\t\t\t\t\t\t<span class=\"cmcf-control-label\">Hardness<\/span>\n\t\t\t\t\t\t\t<details class=\"cmcf-filter-menu\">\n\t\t\t\t\t\t\t\t<summary><span data-hardness-label>Hardness<\/span><span class=\"cmcf-summary-count\" data-hardness-count translate=\"no\" data-no-translation hidden>0<\/span><span class=\"cmcf-menu-arrow\" aria-hidden=\"true\"><\/span><\/summary>\n\t\t\t\t\t\t\t\t<div class=\"cmcf-popover cmcf-range\">\n\t\t\t\t\t\t\t\t\t<label>Min<input type=\"number\" step=\"0.1\" inputmode=\"decimal\" data-hardness-min><\/label>\n\t\t\t\t\t\t\t\t\t<span aria-hidden=\"true\">to<\/span>\n\t\t\t\t\t\t\t\t\t<label>Max<input type=\"number\" step=\"0.1\" inputmode=\"decimal\" data-hardness-max><\/label>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"cmcf-control\" data-facet-slot=\"countries\"><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"cmcf-sidebar-actions\">\n\t\t\t\t\t\t<button class=\"cmcf-reset\" type=\"reset\">Clear all<\/button>\n\t\t\t\t\t\t<button class=\"cmcf-show\" type=\"button\">Show <span data-show-count translate=\"no\" data-no-translation>0<\/span> minerals<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/form>\n\t\t\t<\/aside>\n\n\t\t\t<div class=\"cmcf-results\">\n\t\t\t\t<div class=\"cmcf-toolbar\">\n\t\t\t\t\t<div class=\"cmcf-result-count\" data-result-count aria-live=\"polite\">Loading minerals...<\/div>\n\t\t\t\t\t<div class=\"cmcf-sort-control\">\n\t\t\t\t\t\t<span class=\"cmcf-sort-title\">Sort<\/span>\n\t\t\t\t\t\t<details class=\"cmcf-sort-menu\">\n\t\t\t\t\t\t\t<summary><span data-sort-label>A to Z<\/span><span class=\"cmcf-menu-arrow\" aria-hidden=\"true\"><\/span><\/summary>\n\t\t\t\t\t\t\t<div class=\"cmcf-sort-options\" role=\"group\" aria-label=\"Sort minerals\">\n\t\t\t\t\t\t\t\t<button type=\"button\" class=\"cmcf-sort-option\" data-sort-value=\"az\" aria-pressed=\"true\">A to Z<\/button>\n\t\t\t\t\t\t\t\t<button type=\"button\" class=\"cmcf-sort-option\" data-sort-value=\"za\" aria-pressed=\"false\">Z to A<\/button>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"cmcf-active\" data-active-filters hidden><\/div>\n\t\t\t\t<div class=\"cmcf-status\" data-status>Loading mineral collection...<\/div>\n\t\t\t\t<div class=\"cmcf-grid\" data-grid><\/div>\n\t\t\t\t<div class=\"cmcf-empty\" data-empty hidden>\n\t\t\t\t\t<h3>No minerals found<\/h3>\n\t\t\t\t\t<p>Try removing a filter or using a broader search.<\/p>\n\t\t\t\t\t<button type=\"button\" data-empty-reset>Clear filters<\/button>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"cmcf-sentinel\" data-sentinel aria-hidden=\"true\"><\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t<noscript><nav class=\"cmcf-crawl-links\" aria-label=\"Mineral records\">\n\t\t\t<h2>Mineral records<\/h2>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/sicherite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/sicherite-3-768x606.jpg\" alt=\"Sicherite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Sicherite<\/strong>\n\t\t\t\t\t\t\t<span>Sicherite is an exceedingly rare thallium arsenic sulfosalt mineral belonging to the orthorhombic crystal system, first discovered in the cavities of Triassic dolomites at the famed Lengenbach Quarry, Switzerland.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/gerstleyite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/gerstleyite-2-768x767.jpg\" alt=\"gerstleyite (2)\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Gerstleyite<\/strong>\n\t\t\t\t\t\t\t<span>Gerstleyite is an extremely rare hydrated sodium antimony arsenic sulfosalt mineral, notable as one of the first discovered alkali-bearing sulfosalts. It typically occurs as cinnabar-red to blackish-red fibrous or platy aggregates in lacustrine borate deposits.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/edscottite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/edscottite.jpg\" alt=\"Edscottite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Edscottite<\/strong>\n\t\t\t\t\t\t\t<span>Edscottite is an ultra-rare iron carbide mineral (Fe5C2) discovered inside the Wedderburn iron meteorite, formed as a phase during the slow cooling of an ancient planetesimal core.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/naldrettite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/naldrettite-768x512.jpg\" alt=\"Naldrettite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Naldrettite<\/strong>\n\t\t\t\t\t\t\t<span>Naldrettite is a rare palladium antimonide mineral (Pd2Sb) discovered in the Sudbury mining district, forming under late-magmatic hydrothermal conditions within nickel-copper sulfide deposits.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/krotite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/krotite-768x549.png\" alt=\"krotite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Krotite<\/strong>\n\t\t\t\t\t\t\t<span>Krotite is a low-pressure, high-temperature calcium aluminate oxide mineral (CaAl\u2082O\u2084) discovered within refractory inclusions of primitive chondritic meteorites, serving as one of the earliest solid materials formed in the solar nebula.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/kernowite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/imgi_115_kernowite.png\" alt=\"Kernowite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Kernowite<\/strong>\n\t\t\t\t\t\t\t<span>Kernowite is a rare copper iron arsenate hydrate mineral discovered in St Day, Cornwall, UK. It is the iron-dominant analogue of liroconite. Known for its distinct emerald-green crystals, it crystallizes in the monoclinic system and typically forms as tabular to wedge-shaped crystals in oxidized copper deposit zones.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ferropericlase\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\" alt=\"ferropericlase\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Ferropericlase<\/strong>\n\t\t\t\t\t\t\t<span>Ferropericlase (or magnesiow\u00fcstite) is an iron-bearing variety or species of periclase, represented by the chemical formula (Mg,Fe)O. It is interpreted as one of the primary mineral components of the Earth&#039;s lower mantle alongside silicate perovskite, frequently occurring as micro-inclusions in deep mantle diamonds.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/geversite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/geversite.jpg\" alt=\"geversite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Geversite<\/strong>\n\t\t\t\t\t\t\t<span>Geversite is a rare platinum-group mineral (PGM) with the chemical composition PtSb\u2082, crystallizing in the isometric pyrite structure type. First described from the Driekop Mine in the Bushveld Igneous Complex, South Africa, it forms microscopic metallic grains, euhedral cubes, and complex intergrowths typically hosted in ultramafic rocks, chromitites, and magmatic sulfide deposits.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/cattierite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\" alt=\"cattierite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Cattierite<\/strong>\n\t\t\t\t\t\t\t<span>Cattierite is a rare cobalt sulfide mineral with the chemical formula CoS\u2082, belonging to the pyrite group. First discovered in the rich stratiform copper-cobalt deposits of the Katanga Copperbelt in the Democratic Republic of the Congo, it typically occurs as metallic pinkish-gray to dark gray microscopic crystals, cubes, and granular aggregates associated with other base-metal sulfides.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/bismutotantalite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/bismutotantalite.jpg\" alt=\"bismutotantalite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Bismutotantalite<\/strong>\n\t\t\t\t\t\t\t<span>Bismutotantalite is a rare heavy tantalum-bismuth oxide mineral belonging to the columbite-tantalite group, crystallizing in the orthorhombic crystal system. Characterized by an exceptionally high specific gravity (up to 8.98\u20139.0 g\/cm\u00b3), sub-adamantine to resinous luster, and high refractive indices, it occurs as a late-stage accessory mineral in highly fractionated, lithium-cesium-tantalum (LCT) enriched granitic pegmatites.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/delhayelite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\" alt=\"delhayelite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Delhayelite<\/strong>\n\t\t\t\t\t\t\t<span>Delhayelite is a rare, structurally complex hydrous potassium-calcium-sodium phyllosilicate mineral containing essential volatile halogens and sulfate anions (Cl, F, and SO\u2084\u00b2\u207b). Initially discovered in the silica-undersaturated peralkaline nephelinite lavas of Mount Shaheru in the Democratic Republic of the Congo, it crystallizes in the orthorhombic crystal system and serves as an important indicator mineral for late-stage volatile and alkali enrichment in hyper-agpaitic igneous environments.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/manandonite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/manandonite-768x596.jpg\" alt=\"Manandonite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Manandonite<\/strong>\n\t\t\t\t\t\t\t<span>Manandonite is an extraordinarily rare, lithium- and boron-bearing trioctahedral-dioctahedral phyllosilicate mineral species belonging structurally to the 1:1 serpentine-kaolinite group. First documented in the highly fractionated granitic pegmatites of Madagascar, it is unique in mineralogy as one of the few sheet silicates that accommodates essential structural boron into the tetrahedral layers along with essential octahedral lithium and aluminum.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/halite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x512.jpg\" alt=\"Halite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Halite<\/strong>\n\t\t\t\t\t\t\t<span>Halite is the mineral form of sodium chloride (NaCl), commonly known as rock salt. It forms isometric crystals in evaporite deposits and is essential to human life, industry, and chemical production.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/pseudorutile\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Pseudorutile-2.gif\" alt=\"Pseudorutile\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Pseudorutile<\/strong>\n\t\t\t\t\t\t\t<span>Pseudorutile is an intermediate titanium-iron oxide mineral formed primarily during the low-temperature weathering and progressive leaching of ilmenite in heavy mineral sand deposits. Structurally and chemically distinct from rutile and ilmenite, it plays a vital transitional role in the supergene alteration sequence from ilmenite to leucoxene and secondary rutile\/anatase, making it an essential phase in global titanium placer mining and processing.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/galena\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\" alt=\"Galena\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Galena<\/strong>\n\t\t\t\t\t\t\t<span>Galena is the primary natural mineral form of lead(II) sulfide (PbS), crystallizing in the isometric crystal system with a halite-type rock-salt crystal structure. As the world&#039;s most critical and abundant ore of lead\u2014and a major historical source of byproduct silver\u2014galena is celebrated for its high specific gravity (~7.6), splendent metallic luster, lead-gray streak, and perfect cubic cleavage along three perpendicular planes.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/forsterite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\" alt=\"Forsterite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Forsterite<\/strong>\n\t\t\t\t\t\t\t<span>Forsterite is the magnesium-rich endmember of the olivine solid-solution series (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), crystallizing in the orthorhombic crystal system. As an essential rock-forming orthosilicate (nesosilicate) mineral, it constitutes the dominant volumetric phase of Earth&#039;s upper mantle (peridotite\/dunite) and is widespread in ultramafic igneous rocks, contact-metamorphosed dolomitic limestones, and primitive chondritic meteorites. Gem-quality intermediate varieties rich in the forsterite component are celebrated worldwide as Peridot.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/quartz\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Quartz-768x575.jpg\" alt=\"Quartz\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Quartz<\/strong>\n\t\t\t\t\t\t\t<span>Quartz is the definitive low-temperature trigonal polymorph of silicon dioxide (SiO\u2082), stable up to 573 \u00b0C at ambient pressures. As the defining benchmark for Mohs hardness 7 and one of the most abundant rock-forming framework tectosilicates in the Earth&#039;s continental crust, quartz is renowned for its strong piezoelectricity, chemical durability, absence of cleavage, and extensive suite of colored macrocrystalline and microcrystalline (chalcedony) varieties.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ruby\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Ruby-768x401.jpeg\" alt=\"Ruby\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Ruby<\/strong>\n\t\t\t\t\t\t\t<span>Ruby is the prestigious red, gem-quality variety of the mineral species corundum (aluminum oxide, Al\u2082O\u2083), colored predominantly by trace amounts of chromium (Cr\u00b3\u207a substituting for Al\u00b3\u207a in octahedral coordination). Renowned as one of the traditional cardinal gemstones, it exhibits exceptional Mohs hardness (9), high refractive indices, pronounced pleochroism, and vivid chromium-induced red fluorescence under longwave UV radiation.<\/span>\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t<\/nav><\/noscript>\t\t<noscript><style>.cmcf-v2.cmcf-booting{display:none!important}<\/style><\/noscript>\n\t\t<noscript><nav class=\"cmcf-noscript\" aria-label=\"Mineral records\">\n\t\t\t<h2>Mineral records<\/h2>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/bismutotantalite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/bismutotantalite.jpg\" alt=\"bismutotantalit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Bismutotantalit<\/strong>\n\t\t\t\t\t\t\t\t<span>Bismutotantalit je vz\u00e1cn\u00fd t\u011b\u017ek\u00fd oxidov\u00fd miner\u00e1l tantalu a bismutu pat\u0159\u00edc\u00ed do skupiny kolumbit-tantalit, krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Vyzna\u010duje se mimo\u0159\u00e1dn\u011b vysokou m\u011brnou hmotnost\u00ed (a\u017e 8,98\u20139,0 g\/cm\u00b3), polodiamantov\u00fdm a\u017e prysky\u0159i\u010dn\u00fdm leskem a vysok\u00fdmi indexy lomu; vyskytuje se jako pozdn\u00ed akcesorick\u00fd miner\u00e1l ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech obohacen\u00fdch lithiem, cesiem a tantalem (LCT).<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/cattierite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\" alt=\"kattierit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>kattierit<\/strong>\n\t\t\t\t\t\t\t\t<span>Katierit je vz\u00e1cn\u00fd sirn\u00edk kobaltu s chemick\u00fdm vzorcem CoS\u2082, pat\u0159\u00edc\u00ed do skupiny pyritu. Poprv\u00e9 byl objeven v bohat\u00fdch stratiformn\u00edch lo\u017eisc\u00edch m\u011bdi a kobaltu v katangsk\u00e9m m\u011bd\u011bn\u00e9m p\u00e1su v Demokratick\u00e9 republice Kongo, typicky se vyskytuje jako kovov\u011b r\u016f\u017eov\u011b \u0161ed\u00e9 a\u017e tmav\u011b \u0161ed\u00e9 mikroskopick\u00e9 krystaly, krychle a zrnit\u00e9 agreg\u00e1ty spolu s dal\u0161\u00edmi sirn\u00edky obecn\u00fdch kov\u016f.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/delhayelite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\" alt=\"delhayelit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Delhayelite<\/strong>\n\t\t\t\t\t\t\t\t<span>Delhayelit je vz\u00e1cn\u00fd, strukturn\u011b slo\u017eit\u00fd hydratovan\u00fd draselno-v\u00e1penato-sodn\u00fd fylosilik\u00e1tov\u00fd miner\u00e1l obsahuj\u00edc\u00ed nezbytn\u00e9 t\u011bkav\u00e9 halogeny a s\u00edranov\u00e9 anionty (Cl, F a SO\u2084\u00b2\u207b). P\u016fvodn\u011b objeven\u00fd v k\u0159em\u00edkem nedosycen\u00fdch peralkalick\u00fdch nefelinitov\u00fdch l\u00e1v\u00e1ch hory Shaheru v Demokratick\u00e9 republice Kongo, krystalizuje v koso\u010dtvere\u010dn\u00e9 krystalov\u00e9 soustav\u011b a slou\u017e\u00ed jako d\u016fle\u017eit\u00fd indik\u00e1torov\u00fd miner\u00e1l pro pozdn\u00ed f\u00e1zi t\u011bkav\u00fdch...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/edscottite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/edscottite.jpg\" alt=\"Edscottit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Edscottit<\/strong>\n\t\t\t\t\t\t\t\t<span>Edscottit je extr\u00e9mn\u011b vz\u00e1cn\u00fd miner\u00e1l \u017eelezn\u00e9ho karbidu (Fe5C2), objeven\u00fd uvnit\u0159 \u017eelezn\u00e9ho meteoritu Wedderburn, kter\u00fd vznikl jako f\u00e1ze b\u011bhem pomal\u00e9ho ochlazov\u00e1n\u00ed j\u00e1dra starobyl\u00e9ho planetesim\u00e1lu.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ferropericlase\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\" alt=\"ferroperiklas\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>ferroperiklas<\/strong>\n\t\t\t\t\t\t\t\t<span>Ferroperiklas (nebo magnesiow\u00fcstit) je \u017eelezonosn\u00e1 odr\u016fda nebo druh periklasu, reprezentovan\u00e1 chemick\u00fdm vzorcem (Mg,Fe)O. Je interpretov\u00e1na jako jedna z hlavn\u00edch miner\u00e1ln\u00edch slo\u017eek spodn\u00edho zemsk\u00e9ho pl\u00e1\u0161t\u011b spolu se silik\u00e1tov\u00fdm perovskitem, \u010dasto se vyskytuj\u00edc\u00ed jako mikroinkluze v diamantech z hlubok\u00e9ho pl\u00e1\u0161t\u011b.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/forsterite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\" alt=\"Forsterit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Forsterit<\/strong>\n\t\t\t\t\t\t\t\t<span>Forsterit je na ho\u0159\u010d\u00edk bohat\u00fd koncov\u00fd \u010dlen \u0159ady tuh\u00fdch roztok\u016f oliv\u00ednu (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), krystalizuj\u00edc\u00ed v koso\u010dtvere\u010dn\u00e9 (ortorombick\u00e9) soustav\u011b. Jako d\u016fle\u017eit\u00fd horninotvorn\u00fd orthosilik\u00e1t (nesosilik\u00e1t) tvo\u0159\u00ed dominantn\u00ed objemovou f\u00e1zi svrchn\u00edho pl\u00e1\u0161t\u011b Zem\u011b (peridotit\/dunit) a je hojn\u011b zastoupen v ultramafick\u00fdch vyv\u0159el\u00fdch hornin\u00e1ch, kontaktn\u011b metamorfovan\u00fdch dolomitick\u00fdch v\u00e1penc\u00edch a primitivn\u00edch chondritick\u00fdch meteoritech. P\u0159echodn\u00e9 variety drahokamov\u00e9 kvality bohat\u00e9 na...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/galena\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\" alt=\"Galena\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Galena<\/strong>\n\t\t\t\t\t\t\t\t<span>Galena je prim\u00e1rn\u00ed p\u0159\u00edrodn\u00ed miner\u00e1ln\u00ed formou sulfidu olovnat\u00e9ho (PbS), krystalizuj\u00edc\u00ed v izometrick\u00e9 (kubick\u00e9) krystalov\u00e9 soustav\u011b s krystalovou strukturou typu halitu (kamenn\u00e9 soli). Jako nejd\u016fle\u017eit\u011bj\u0161\u00ed a nejhojn\u011bj\u0161\u00ed ruda olova na sv\u011bt\u011b \u2013 a v\u00fdznamn\u00fd historick\u00fd zdroj st\u0159\u00edbra jako vedlej\u0161\u00edho produktu \u2013 je galena cen\u011bna pro svou vysokou specifickou hmotnost (~7,6), leskl\u00fd kovov\u00fd lesk, olov\u011bn\u011b \u0161ed\u00fd vryp a dokonalou krychlovou...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/gerstleyite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/gerstleyite-768x767.jpg\" alt=\"gerstleyite (2)\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Gerstleyit<\/strong>\n\t\t\t\t\t\t\t\t<span>Gerstleyit je extr\u00e9mn\u011b vz\u00e1cn\u00fd hydr\u00e1tovan\u00fd sodn\u00fd sulfosol antimonu a arsenu, zn\u00e1m\u00fd jako jeden z prvn\u00edch objeven\u00fdch alk\u00e1liemi bohat\u00fdch sulfosol\u00ed. Obvykle se vyskytuje v podob\u011b cinnabaritov\u011b \u010derven\u00fdch a\u017e tmav\u011b \u010derven\u00fdch vl\u00e1knit\u00fdch nebo deskovit\u00fdch agreg\u00e1t\u016f v jezern\u00edch borit\u00fdch lo\u017eisc\u00edch.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/geversite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/geversite.jpg\" alt=\"geversit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>geversit<\/strong>\n\t\t\t\t\t\t\t\t<span>Geversit je vz\u00e1cn\u00fd miner\u00e1l skupiny platiny (PGM) s chemick\u00fdm slo\u017een\u00edm PtSb\u2082, krystalizuj\u00edc\u00ed v izometrick\u00e9m strukturn\u00edm typu pyritu. Poprv\u00e9 byl pops\u00e1n z dolu Driekop v Bushveldsk\u00e9m vyv\u0159el\u00e9m komplexu v Ji\u017en\u00ed Africe; vytv\u00e1\u0159\u00ed mikroskopick\u00e1 kovov\u00e1 zrna, euhedr\u00e1ln\u00ed krychle a komplexn\u00ed sr\u016fsty, kter\u00e9 se typicky vyskytuj\u00ed v ultramafick\u00fdch hornin\u00e1ch, chromititech a magmatick\u00fdch sulfidick\u00fdch lo\u017eisk\u00e1ch.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/halite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x768.png\" alt=\"Halit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Halit<\/strong>\n\t\t\t\t\t\t\t\t<span>Halit je miner\u00e1ln\u00ed forma chloridu sodn\u00e9ho (NaCl), b\u011b\u017en\u011b zn\u00e1m\u00fd jako kamenn\u00e1 s\u016fl. Tvo\u0159\u00ed izometrick\u00e9 krystaly v evapora\u010dn\u00edch usazenin\u00e1ch a je nezbytn\u00fd pro lidsk\u00fd \u017eivot, pr\u016fmysl a chemickou v\u00fdrobu.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/kernowite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/imgi_115_kernowite.png\" alt=\"Kernowite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Kernowite<\/strong>\n\t\t\t\t\t\t\t\t<span>Kernowit je vz\u00e1cn\u00fd hydratovan\u00fd miner\u00e1l m\u011b\u010fnat\u00e9ho \u017eelezn\u00e9ho arsen\u00e1tu objeven\u00fd v St Day, Cornwall, Velk\u00e1 Brit\u00e1nie. Je to \u017eelezem dominantn\u00ed analog lirokonitu. Proslul\u00fd sv\u00fdmi v\u00fdrazn\u011b smaragdov\u011b zelen\u00fdmi krystaly pat\u0159\u00ed do monoklinick\u00e9 soustavy a typicky se vyskytuje jako tabulkovit\u00e9 a\u017e kl\u00ednovit\u00e9 krystaly v oxidovan\u00fdch z\u00f3n\u00e1ch m\u011bd\u011bn\u00fdch lo\u017eisek.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/krotite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/krotite-768x549.png\" alt=\"krot\u00edte\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Krotitel\u00e9<\/strong>\n\t\t\t\t\t\t\t\t<span>Krotit je miner\u00e1l s n\u00edzk\u00fdm tlakem a vysokou teplotou, kter\u00fd pat\u0159\u00ed mezi oxidy hlini\u010ditanu v\u00e1penat\u00e9ho (CaAl\u2082O\u2084) a byl objeven v refraktern\u00edch inkluz\u00edch primitivn\u00edch kondritick\u00fdch meteorit\u016f. Slou\u017e\u00ed jako jeden z nejstar\u0161\u00edch pevn\u00fdch materi\u00e1l\u016f vznikl\u00fdch ve slune\u010dn\u00ed mlhovin\u011b.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/manandonite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/manandonite-768x596.jpg\" alt=\"Manandonit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Manandonit<\/strong>\n\t\t\t\t\t\t\t\t<span>Manandonit je mimo\u0159\u00e1dn\u011b vz\u00e1cn\u00fd, lithium- a bor obsahuj\u00edc\u00ed trioktaedrick\u00fd-dioktaedrick\u00fd fylosilik\u00e1tov\u00fd miner\u00e1ln\u00ed druh, pat\u0159\u00edc\u00ed strukturn\u011b do skupiny 1:1 serpentin-kaolinit. Poprv\u00e9 zdokumentov\u00e1n ve vysoce frakcionovan\u00fdch granitick\u00fdch pegmatitech Madagaskaru, je v mineralogii jedine\u010dn\u00fd jako jeden z m\u00e1la vrstevnat\u00fdch silik\u00e1t\u016f, kter\u00e9 p\u0159ij\u00edmaj\u00ed esenci\u00e1ln\u00ed strukturn\u00ed bor do tetraedrick\u00fdch vrstev spolu s esenci\u00e1ln\u00edm oktaedrick\u00fdm lithiem a...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/naldrettite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/naldrettite-768x512.jpg\" alt=\"Naldrettit\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Naldrettit<\/strong>\n\t\t\t\t\t\t\t\t<span>Naldrettit je vz\u00e1cn\u00fd miner\u00e1l palladiov\u00e9ho antimoniidu (Pd2Sb), objeven\u00fd v t\u011b\u017eebn\u00ed oblasti Sudbury, kter\u00fd vznikl za pozdn\u011b magmatick\u00fdch hydroterm\u00e1ln\u00edch podm\u00ednek v lo\u017eisc\u00edch niklov\u011b-medov\u00fdch sulfid\u016f.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/pseudorutile\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Pseudorutile-2.gif\" alt=\"pseudorutil\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>pseudorutil<\/strong>\n\t\t\t\t\t\t\t\t<span>Pseudorutil je p\u0159echodn\u00fd miner\u00e1l oxidu titanu a \u017eeleza, kter\u00fd vznik\u00e1 p\u0159edev\u0161\u00edm b\u011bhem n\u00edzkoteplotn\u00edho zv\u011btr\u00e1v\u00e1n\u00ed a postupn\u00e9ho vyluhov\u00e1n\u00ed ilmenitu v lo\u017eisc\u00edch t\u011b\u017ek\u00fdch miner\u00e1ln\u00edch p\u00edsk\u016f. Strukturn\u011b a chemicky odli\u0161n\u00fd od rutilu a ilmenitu hraje z\u00e1sadn\u00ed p\u0159echodnou roli v supergenn\u00ed altera\u010dn\u00ed sekvenci od ilmenitu k leukoxenu a sekund\u00e1rn\u00edmu rutilu\/anatasu, \u010d\u00edm\u017e se st\u00e1v\u00e1 nezbytnou f\u00e1z\u00ed v glob\u00e1ln\u00ed...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/quartz\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Quartz-768x575.jpg\" alt=\"k\u0159emen\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>k\u0159emen<\/strong>\n\t\t\t\t\t\t\t\t<span>K\u0159emen je definitivn\u00ed n\u00edzkoteplotn\u00ed trigon\u00e1ln\u00ed polymorf oxidu k\u0159emi\u010dit\u00e9ho (SiO\u2082), stabiln\u00ed a\u017e do 573 \u00b0C p\u0159i okoln\u00edm tlaku. Jako ur\u010duj\u00edc\u00ed m\u011b\u0159\u00edtko tvrdosti 7 podle Mohse a jeden z nejhojn\u011bj\u0161\u00edch horninotvorn\u00fdch tektosilik\u00e1t\u016f s kostrovou strukturou v zemsk\u00e9 kontinent\u00e1ln\u00ed k\u016f\u0159e je k\u0159emen proslul\u00fd svou silnou piezoelekt\u0159inou, chemickou odolnost\u00ed, absenc\u00ed \u0161t\u011bpnosti a rozs\u00e1hl\u00fdm souborem...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/ruby\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/imgi_212_Cut_Ruby_Image-768x395.jpg\" alt=\"Ruby\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Ruby<\/strong>\n\t\t\t\t\t\t\t\t<span>Rub\u00edn je presti\u017en\u00ed \u010dervenou, \u0161perka\u0159skou odr\u016fdou miner\u00e1ln\u00edho druhu korund (oxid hlinit\u00fd, Al\u2082O\u2083), zbarven\u00fd p\u0159ev\u00e1\u017en\u011b stopov\u00fdm mno\u017estv\u00edm chromu (Cr\u00b3\u207a substituuj\u00edc\u00ed Al\u00b3\u207a v oktaedrick\u00e9 koordinaci). Proslul\u00fd jako jeden z tradi\u010dn\u00edch hlavn\u00edch drahokam\u016f vykazuje v\u00fdjime\u010dnou Mohsovu tvrdost (9), vysok\u00e9 indexy lomu, v\u00fdrazn\u00fd pleochroismus a \u017eivou \u010dervenou fluorescenci vyvolanou chromem pod dlouhovlnn\u00fdm UV...<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t<a href=\"https:\/\/crystals.rocks\/cs\/minerals\/sicherite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/sicherite-3-768x606.jpg\" alt=\"Zajist\u011bte\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Zajist\u011bte<\/strong>\n\t\t\t\t\t\t\t\t<span>Sicherite je velmi vz\u00e1cn\u00fd miner\u00e1l thalium arsenidu sulfosalu, pat\u0159\u00edc\u00ed do ortorombick\u00e9 krystalick\u00e9 soustavy, objeven\u00fd poprv\u00e9 v dutin\u00e1ch triasov\u00fdch dolomit\u016f na zn\u00e1m\u00e9m Lengenbachov\u011b lomu ve \u0160v\u00fdcarsku.<\/span>\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t<\/nav><\/noscript>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_seopress_titles_title":"Minerals, Crystals & Gemstones Database","_seopress_titles_desc":"An open-access mineral, crystal, and gemstone database providing physical properties, formulas, and scientific records for education and research.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"class_list":["post-39","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/pages\/39","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/comments?post=39"}],"version-history":[{"count":13,"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/pages\/39\/revisions"}],"predecessor-version":[{"id":5035,"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/pages\/39\/revisions\/5035"}],"wp:attachment":[{"href":"https:\/\/crystals.rocks\/cs\/wp-json\/wp\/v2\/media?parent=39"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}