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.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-fr_fr.json\"\n\t\t\tdata-language-home=\"https:\/\/crystals.rocks\/fr\/\"\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=\"fr-fr\"\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\/fr\/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<h3>Bismutotantalite<\/h3>\n\t\t\t\t\t\t\t<p>La bismutotantalite est un min\u00e9ral oxyde rare et lourd de tantale-bismuth appartenant au groupe de la columbite-tantalite, cristallisant dans le syst\u00e8me cristallin orthorhombique. Caract\u00e9ris\u00e9e par une densit\u00e9 exceptionnellement \u00e9lev\u00e9e (jusqu&#039;\u00e0 8.98\u20139.0 g\/cm\u00b3), un \u00e9clat sub-adamantin \u00e0 r\u00e9sineux et des indices de r\u00e9fraction \u00e9lev\u00e9s, elle se pr\u00e9sente comme un min\u00e9ral accessoire de stade tardif dans des pegmatites granitiques fortement fractionn\u00e9es, enrichies en lithium-c\u00e9sium-tantale (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\/fr\/minerals\/cattierite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\" alt=\"catti\u00e9rite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Cattierite<\/h3>\n\t\t\t\t\t\t\t<p>La cattierite est un min\u00e9ral rare de sulfure de cobalt de formule chimique CoS\u2082, appartenant au groupe de la pyrite. D\u00e9couverte pour la premi\u00e8re fois dans les riches gisements stratiformes de cuivre-cobalt de la ceinture cuprif\u00e8re du Katanga en R\u00e9publique d\u00e9mocratique du Congo, elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme de cristaux microscopiques m\u00e9talliques gris ros\u00e9 \u00e0 gris fonc\u00e9, de cubes et d&#039;agr\u00e9gats granulaires associ\u00e9e \u00e0 d&#039;autres sulfures de m\u00e9taux de base.<\/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\/fr\/minerals\/delhayelite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\" alt=\"delhay\u00e9lite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Delhay\u00e9lite<\/h3>\n\t\t\t\t\t\t\t<p>La delhay\u00e9lite est un min\u00e9ral phyllosilicate hydrat\u00e9 de potassium-calcium-sodium, rare et structurellement complexe, contenant des halog\u00e8nes volatils essentiels et des anions sulfate (Cl, F et SO\u2084\u00b2\u207b). D\u00e9couverte initialement dans les laves n\u00e9ph\u00e9linitiques peralcalines sous-satur\u00e9es en silice du mont Shaheru en R\u00e9publique d\u00e9mocratique du Congo, elle cristallise dans le syst\u00e8me cristallin orthorhombique et sert de min\u00e9ral indicateur important pour les volatils de fin de stade...<\/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\/fr\/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<h3>Edscottite<\/h3>\n\t\t\t\t\t\t\t<p>L&#039;edscottite est un min\u00e9ral ultra-rare de carbure de fer (Fe5C2) d\u00e9couvert \u00e0 l&#039;int\u00e9rieur de la m\u00e9t\u00e9orite de fer de Wedderburn, form\u00e9e comme une phase lors du refroidissement lent du noyau d&#039;un ancien plan\u00e9t\u00e9simal.<\/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\/fr\/minerals\/ferropericlase\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\" alt=\"ferrop\u00e9riclase\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Ferropericlase<\/h3>\n\t\t\t\t\t\t\t<p>La ferropericlase (ou magn\u00e9siow\u00fcstite) est une vari\u00e9t\u00e9 ou esp\u00e8ce de p\u00e9riclase contenant du fer, repr\u00e9sent\u00e9e par la formule chimique (Mg,Fe)O. Elle est interpr\u00e9t\u00e9e comme l&#039;un des principaux composants min\u00e9raux du manteau inf\u00e9rieur de la Terre, aux c\u00f4t\u00e9s de la p\u00e9rovskite silicat\u00e9e, se pr\u00e9sentant fr\u00e9quemment sous forme de micro-inclusions dans les diamants du manteau profond.<\/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\/fr\/minerals\/forsterite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\" alt=\"Olivine\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Olivine<\/h3>\n\t\t\t\t\t\t\t<p>La forst\u00e9rite est le p\u00f4le riche en magn\u00e9sium de la s\u00e9rie de solutions solides de l&#039;olivine (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), cristallisant dans le syst\u00e8me cristallin orthorhombique. En tant que min\u00e9ral orthosilicate (n\u00e9sosilicate) essentiel formant les roches, elle constitue la phase volum\u00e9trique dominante du manteau sup\u00e9rieur de la Terre (p\u00e9ridotite\/dunite) et est r\u00e9pandue dans les roches ign\u00e9es ultramafiques, les calcaires dolomitiques m\u00e9tamorphis\u00e9s par contact et les m\u00e9t\u00e9orites chondritiques primitives. Les vari\u00e9t\u00e9s interm\u00e9diaires de qualit\u00e9 gemme riches en...<\/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\/fr\/minerals\/galena\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\" alt=\"Gal\u00e8ne\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Gal\u00e8ne<\/h3>\n\t\t\t\t\t\t\t<p>La gal\u00e8ne est la principale forme min\u00e9rale naturelle du sulfure de plomb(II) (PbS), cristallisant dans le syst\u00e8me cristallin isom\u00e9trique avec une structure cristalline de type halite (sel gemme). En tant que minerai de plomb le plus critique et le plus abondant au monde\u2014et une source historique majeure d&#039;argent sous-produit\u2014la gal\u00e8ne est c\u00e9l\u00e8bre pour sa densit\u00e9 \u00e9lev\u00e9e (~7,6), son \u00e9clat m\u00e9tallique \u00e9clatant, sa trace gris plomb et son cubique parfait...<\/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\/fr\/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>Gerstleyite<\/h3>\n\t\t\t\t\t\t\t<p>La gerstleyite est un min\u00e9ral sulfosel hydrat\u00e9 extr\u00eamement rare de sodium, d&#039;antimoine et d&#039;arsenic, remarquable comme l&#039;un des premiers sulfosels alcalins d\u00e9couverts. Elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme d&#039;agr\u00e9gats fibreux ou lamellaires allant du rouge cinabre au rouge sombre, dans les d\u00e9p\u00f4ts borat\u00e9s lacustres.<\/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\/fr\/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<h3>Geversite<\/h3>\n\t\t\t\t\t\t\t<p>La geversite est un min\u00e9ral rare du groupe du platine (MGP) de composition chimique PtSb\u2082, cristallisant dans le type structural de la pyrite dans le syst\u00e8me isom\u00e9trique. D\u00e9crite pour la premi\u00e8re fois dans la mine de Driekop, dans le Complexe ign\u00e9 du Bushveld, en Afrique du Sud, elle forme des grains m\u00e9talliques microscopiques, des cubes automorphes et des intercroissances complexes g\u00e9n\u00e9ralement inclus dans les roches ultramafiques, les chromitites et les gisements de sulfures magmatiques.<\/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\/fr\/minerals\/halite\/\">\n\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x768.png\" alt=\"Halite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Halite<\/h3>\n\t\t\t\t\t\t\t<p>L&#039;halite est la forme min\u00e9rale du chlorure de sodium (NaCl), commun\u00e9ment appel\u00e9e sel gemme. Elle forme des cristaux isom\u00e9triques dans les d\u00e9p\u00f4ts \u00e9vaporitiques et est essentielle \u00e0 la vie humaine, \u00e0 l&#039;industrie et \u00e0 la production chimique.<\/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\/fr\/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>Le kernowite est un min\u00e9ral hydrat\u00e9 rare d&#039;ars\u00e9niate de cuivre et de fer, d\u00e9couvert \u00e0 St Day, en Cornouailles, au Royaume-Uni. Il est l&#039;analogue domin\u00e9 par le fer du liroconite. Connu pour ses cristaux vert \u00e9meraude distinctifs, il cristallise dans le syst\u00e8me monoclinique et se forme g\u00e9n\u00e9ralement sous la forme de cristaux tabulaires \u00e0 en forme de coin dans les zones oxyd\u00e9es des gisements de cuivre.<\/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\/fr\/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<h3>Krotite<\/h3>\n\t\t\t\t\t\t\t<p>Le krotite est un min\u00e9ral d&#039;oxyde d&#039;aluminate de calcium (CaAl\u2082O\u2084) \u00e0 basse pression et haute temp\u00e9rature, d\u00e9couvert dans les inclusions r\u00e9fractaires des m\u00e9t\u00e9orites chondritiques primitives, servant comme l&#039;un des premiers mat\u00e9riaux solides form\u00e9s dans la n\u00e9buleuse solaire.<\/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\/fr\/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<h3>Manandonite<\/h3>\n\t\t\t\t\t\t\t<p>La manandonite est une esp\u00e8ce min\u00e9rale phyllosilicate triocta\u00e9drique-diocta\u00e9drique extraordinairement rare, contenant du lithium et du bore, appartenant structurellement au groupe serpentine-kaolinite 1:1. Document\u00e9e pour la premi\u00e8re fois dans les pegmatites granitiques fortement fractionn\u00e9es de Madagascar, elle est unique en min\u00e9ralogie en tant que l&#039;un des rares silicates en feuillets qui int\u00e8gre du bore structural essentiel dans les couches t\u00e9tra\u00e9driques ainsi que du lithium octa\u00e9drique essentiel et...<\/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\/fr\/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<h3>Naldrettite<\/h3>\n\t\t\t\t\t\t\t<p>La naldrettite est un min\u00e9ral rare d&#039;antimoniure de palladium (Pd2Sb) d\u00e9couvert dans le district minier de Sudbury, se formant dans des conditions hydrothermales tardives magmatiques au sein de gisements de sulfures de nickel-cuivre.<\/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\/fr\/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<h3>pseudorutile<\/h3>\n\t\t\t\t\t\t\t<p>Pseudorutile est un min\u00e9ral interm\u00e9diaire d&#039;oxyde de titane-fer form\u00e9 principalement lors de l&#039;alt\u00e9ration \u00e0 basse temp\u00e9rature et du lessivage progressif de l&#039;ilm\u00e9nite dans les d\u00e9p\u00f4ts de sables \u00e0 min\u00e9raux lourds. Structurellement et chimiquement distinct du rutile et de l&#039;ilm\u00e9nite, il joue un r\u00f4le transitionnel essentiel dans la s\u00e9quence d&#039;alt\u00e9ration superg\u00e8ne de l&#039;ilm\u00e9nite en leucox\u00e8ne et en rutile\/anatase secondaires, ce qui en fait une phase essentielle dans les...<\/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\/fr\/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<h3>Quartz<\/h3>\n\t\t\t\t\t\t\t<p>Le quartz est le polymorphe trigonal d\u00e9finitif \u00e0 basse temp\u00e9rature du dioxyde de silicium (SiO\u2082), stable jusqu&#039;\u00e0 573 \u00b0C \u00e0 pression ambiante. En tant que r\u00e9f\u00e9rence d\u00e9finissant la duret\u00e9 7 sur l&#039;\u00e9chelle de Mohs et l&#039;un des tectosilicates \u00e0 charpente formant des roches les plus abondants de la cro\u00fbte continentale terrestre, le quartz est r\u00e9put\u00e9 pour sa forte pi\u00e9zo\u00e9lectricit\u00e9, sa durabilit\u00e9 chimique, son absence de clivage et sa vaste gamme...<\/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\/fr\/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>Le rubis est la vari\u00e9t\u00e9 rouge prestigieuse et de qualit\u00e9 gemme de l&#039;esp\u00e8ce min\u00e9rale du corindon (oxyde d&#039;aluminium, Al\u2082O\u2083), color\u00e9 principalement par des traces de chrome (Cr\u00b3\u207a se substituant \u00e0 Al\u00b3\u207a en coordination octa\u00e9drique). Renomm\u00e9 comme l&#039;une des pierres gemmes cardinales traditionnelles, il pr\u00e9sente une duret\u00e9 Mohs exceptionnelle (9), des indices de r\u00e9fraction \u00e9lev\u00e9s, un pl\u00e9ochro\u00efsme prononc\u00e9 et une fluorescence rouge vive induite par le chrome sous UV \u00e0 ondes longues...<\/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\/fr\/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=\"Assurez-vous\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h3>Assurez-vous<\/h3>\n\t\t\t\t\t\t\t<p>Sicherite est un min\u00e9ral thallium ars\u00e9niate sulfoselte extr\u00eamement rare appartenant au syst\u00e8me cristallin orthorhombique, d\u00e9couvert pour la premi\u00e8re fois dans les cavit\u00e9s des dolomies triasiques de la carri\u00e8re c\u00e9l\u00e8bre de Lengenbach, Suisse.<\/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\":\"Bismutotantalite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/bismutotantalite\/\",\"description\":\"La bismutotantalite est un min\u00e9ral oxyde rare et lourd de tantale-bismuth appartenant au groupe de la columbite-tantalite, cristallisant dans le syst\u00e8me cristallin orthorhombique. Caract\u00e9ris\u00e9e par une densit\u00e9 exceptionnellement \u00e9lev\u00e9e (jusqu\\u0027\u00e0 8.98\u20139.0 g\/cm\u00b3), un \u00e9clat sub-adamantin \u00e0 r\u00e9sineux et des indices de r\u00e9fraction \u00e9lev\u00e9s, elle se pr\u00e9sente comme un min\u00e9ral accessoire de stade tardif dans des pegmatites granitiques fortement fractionn\u00e9es, enrichies en lithium-c\u00e9sium-tantale (LCT).\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/bismutotantalite.jpg\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cattierite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/cattierite\/\",\"description\":\"La cattierite est un min\u00e9ral rare de sulfure de cobalt de formule chimique CoS\u2082, appartenant au groupe de la pyrite. D\u00e9couverte pour la premi\u00e8re fois dans les riches gisements stratiformes de cuivre-cobalt de la ceinture cuprif\u00e8re du Katanga en R\u00e9publique d\u00e9mocratique du Congo, elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme de cristaux microscopiques m\u00e9talliques gris ros\u00e9 \u00e0 gris fonc\u00e9, de cubes et d\\u0027agr\u00e9gats granulaires associ\u00e9e \u00e0 d\\u0027autres sulfures de m\u00e9taux de base.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Delhay\u00e9lite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/delhayelite\/\",\"description\":\"La delhay\u00e9lite est un min\u00e9ral phyllosilicate hydrat\u00e9 de potassium-calcium-sodium, rare et structurellement complexe, contenant des halog\u00e8nes volatils essentiels et des anions sulfate (Cl, F et SO\u2084\u00b2\u207b). D\u00e9couverte initialement dans les laves n\u00e9ph\u00e9linitiques peralcalines sous-satur\u00e9es en silice du mont Shaheru en R\u00e9publique d\u00e9mocratique du Congo, elle cristallise dans le syst\u00e8me cristallin orthorhombique et sert de min\u00e9ral indicateur important pour les volatils de fin de stade...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Edscottite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/edscottite\/\",\"description\":\"L\\u0027edscottite est un min\u00e9ral ultra-rare de carbure de fer (Fe5C2) d\u00e9couvert \u00e0 l\\u0027int\u00e9rieur de la m\u00e9t\u00e9orite de fer de Wedderburn, form\u00e9e comme une phase lors du refroidissement lent du noyau d\\u0027un ancien plan\u00e9t\u00e9simal.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/edscottite.jpg\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"Ferropericlase\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/ferropericlase\/\",\"description\":\"La ferropericlase (ou magn\u00e9siow\u00fcstite) est une vari\u00e9t\u00e9 ou esp\u00e8ce de p\u00e9riclase contenant du fer, repr\u00e9sent\u00e9e par la formule chimique (Mg,Fe)O. Elle est interpr\u00e9t\u00e9e comme l\\u0027un des principaux composants min\u00e9raux du manteau inf\u00e9rieur de la Terre, aux c\u00f4t\u00e9s de la p\u00e9rovskite silicat\u00e9e, se pr\u00e9sentant fr\u00e9quemment sous forme de micro-inclusions dans les diamants du manteau profond.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"Olivine\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/forsterite\/\",\"description\":\"La forst\u00e9rite est le p\u00f4le riche en magn\u00e9sium de la s\u00e9rie de solutions solides de l\\u0027olivine (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), cristallisant dans le syst\u00e8me cristallin orthorhombique. En tant que min\u00e9ral orthosilicate (n\u00e9sosilicate) essentiel formant les roches, elle constitue la phase volum\u00e9trique dominante du manteau sup\u00e9rieur de la Terre (p\u00e9ridotite\/dunite) et est r\u00e9pandue dans les roches ign\u00e9es ultramafiques, les calcaires dolomitiques m\u00e9tamorphis\u00e9s par contact et les m\u00e9t\u00e9orites chondritiques primitives. Les vari\u00e9t\u00e9s interm\u00e9diaires de qualit\u00e9 gemme riches en...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Forsterite-768x510.jpg\"},{\"@type\":\"ListItem\",\"position\":7,\"name\":\"Gal\u00e8ne\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/galena\/\",\"description\":\"La gal\u00e8ne est la principale forme min\u00e9rale naturelle du sulfure de plomb(II) (PbS), cristallisant dans le syst\u00e8me cristallin isom\u00e9trique avec une structure cristalline de type halite (sel gemme). En tant que minerai de plomb le plus critique et le plus abondant au monde\u2014et une source historique majeure d\\u0027argent sous-produit\u2014la gal\u00e8ne est c\u00e9l\u00e8bre pour sa densit\u00e9 \u00e9lev\u00e9e (~7,6), son \u00e9clat m\u00e9tallique \u00e9clatant, sa trace gris plomb et son cubique parfait...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Galena-768x512.jpg\"},{\"@type\":\"ListItem\",\"position\":8,\"name\":\"Gerstleyite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/gerstleyite\/\",\"description\":\"La gerstleyite est un min\u00e9ral sulfosel hydrat\u00e9 extr\u00eamement rare de sodium, d\\u0027antimoine et d\\u0027arsenic, remarquable comme l\\u0027un des premiers sulfosels alcalins d\u00e9couverts. Elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme d\\u0027agr\u00e9gats fibreux ou lamellaires allant du rouge cinabre au rouge sombre, dans les d\u00e9p\u00f4ts borat\u00e9s lacustres.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/gerstleyite-768x767.jpg\"},{\"@type\":\"ListItem\",\"position\":9,\"name\":\"Geversite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/geversite\/\",\"description\":\"La geversite est un min\u00e9ral rare du groupe du platine (MGP) de composition chimique PtSb\u2082, cristallisant dans le type structural de la pyrite dans le syst\u00e8me isom\u00e9trique. D\u00e9crite pour la premi\u00e8re fois dans la mine de Driekop, dans le Complexe ign\u00e9 du Bushveld, en Afrique du Sud, elle forme des grains m\u00e9talliques microscopiques, des cubes automorphes et des intercroissances complexes g\u00e9n\u00e9ralement inclus dans les roches ultramafiques, les chromitites et les gisements de sulfures magmatiques.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/geversite.jpg\"},{\"@type\":\"ListItem\",\"position\":10,\"name\":\"Halite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/halite\/\",\"description\":\"L\\u0027halite est la forme min\u00e9rale du chlorure de sodium (NaCl), commun\u00e9ment appel\u00e9e sel gemme. Elle forme des cristaux isom\u00e9triques dans les d\u00e9p\u00f4ts \u00e9vaporitiques et est essentielle \u00e0 la vie humaine, \u00e0 l\\u0027industrie et \u00e0 la production chimique.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Halite-768x768.png\"},{\"@type\":\"ListItem\",\"position\":11,\"name\":\"Kernowite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/kernowite\/\",\"description\":\"Le kernowite est un min\u00e9ral hydrat\u00e9 rare d\\u0027ars\u00e9niate de cuivre et de fer, d\u00e9couvert \u00e0 St Day, en Cornouailles, au Royaume-Uni. Il est l\\u0027analogue domin\u00e9 par le fer du liroconite. Connu pour ses cristaux vert \u00e9meraude distinctifs, il cristallise dans le syst\u00e8me monoclinique et se forme g\u00e9n\u00e9ralement sous la forme de cristaux tabulaires \u00e0 en forme de coin dans les zones oxyd\u00e9es des gisements de cuivre.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/imgi_115_kernowite.png\"},{\"@type\":\"ListItem\",\"position\":12,\"name\":\"Krotite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/krotite\/\",\"description\":\"Le krotite est un min\u00e9ral d\\u0027oxyde d\\u0027aluminate de calcium (CaAl\u2082O\u2084) \u00e0 basse pression et haute temp\u00e9rature, d\u00e9couvert dans les inclusions r\u00e9fractaires des m\u00e9t\u00e9orites chondritiques primitives, servant comme l\\u0027un des premiers mat\u00e9riaux solides form\u00e9s dans la n\u00e9buleuse solaire.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/krotite-768x549.png\"},{\"@type\":\"ListItem\",\"position\":13,\"name\":\"Manandonite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/manandonite\/\",\"description\":\"La manandonite est une esp\u00e8ce min\u00e9rale phyllosilicate triocta\u00e9drique-diocta\u00e9drique extraordinairement rare, contenant du lithium et du bore, appartenant structurellement au groupe serpentine-kaolinite 1:1. Document\u00e9e pour la premi\u00e8re fois dans les pegmatites granitiques fortement fractionn\u00e9es de Madagascar, elle est unique en min\u00e9ralogie en tant que l\\u0027un des rares silicates en feuillets qui int\u00e8gre du bore structural essentiel dans les couches t\u00e9tra\u00e9driques ainsi que du lithium octa\u00e9drique essentiel et...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/manandonite-768x596.jpg\"},{\"@type\":\"ListItem\",\"position\":14,\"name\":\"Naldrettite\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/naldrettite\/\",\"description\":\"La naldrettite est un min\u00e9ral rare d\\u0027antimoniure de palladium (Pd2Sb) d\u00e9couvert dans le district minier de Sudbury, se formant dans des conditions hydrothermales tardives magmatiques au sein de gisements de sulfures de nickel-cuivre.\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/09\/naldrettite-768x512.jpg\"},{\"@type\":\"ListItem\",\"position\":15,\"name\":\"pseudorutile\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/pseudorutile\/\",\"description\":\"Pseudorutile est un min\u00e9ral interm\u00e9diaire d\\u0027oxyde de titane-fer form\u00e9 principalement lors de l\\u0027alt\u00e9ration \u00e0 basse temp\u00e9rature et du lessivage progressif de l\\u0027ilm\u00e9nite dans les d\u00e9p\u00f4ts de sables \u00e0 min\u00e9raux lourds. Structurellement et chimiquement distinct du rutile et de l\\u0027ilm\u00e9nite, il joue un r\u00f4le transitionnel essentiel dans la s\u00e9quence d\\u0027alt\u00e9ration superg\u00e8ne de l\\u0027ilm\u00e9nite en leucox\u00e8ne et en rutile\/anatase secondaires, ce qui en fait une phase essentielle dans les...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Pseudorutile-2.gif\"},{\"@type\":\"ListItem\",\"position\":16,\"name\":\"Quartz\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/quartz\/\",\"description\":\"Le quartz est le polymorphe trigonal d\u00e9finitif \u00e0 basse temp\u00e9rature du dioxyde de silicium (SiO\u2082), stable jusqu\\u0027\u00e0 573 \u00b0C \u00e0 pression ambiante. En tant que r\u00e9f\u00e9rence d\u00e9finissant la duret\u00e9 7 sur l\\u0027\u00e9chelle de Mohs et l\\u0027un des tectosilicates \u00e0 charpente formant des roches les plus abondants de la cro\u00fbte continentale terrestre, le quartz est r\u00e9put\u00e9 pour sa forte pi\u00e9zo\u00e9lectricit\u00e9, sa durabilit\u00e9 chimique, son absence de clivage et sa vaste gamme...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/Quartz-768x575.jpg\"},{\"@type\":\"ListItem\",\"position\":17,\"name\":\"Ruby\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/ruby\/\",\"description\":\"Le rubis est la vari\u00e9t\u00e9 rouge prestigieuse et de qualit\u00e9 gemme de l\\u0027esp\u00e8ce min\u00e9rale du corindon (oxyde d\\u0027aluminium, Al\u2082O\u2083), color\u00e9 principalement par des traces de chrome (Cr\u00b3\u207a se substituant \u00e0 Al\u00b3\u207a en coordination octa\u00e9drique). Renomm\u00e9 comme l\\u0027une des pierres gemmes cardinales traditionnelles, il pr\u00e9sente une duret\u00e9 Mohs exceptionnelle (9), des indices de r\u00e9fraction \u00e9lev\u00e9s, un pl\u00e9ochro\u00efsme prononc\u00e9 et une fluorescence rouge vive induite par le chrome sous UV \u00e0 ondes longues...\",\"image\":\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/imgi_212_Cut_Ruby_Image-768x395.jpg\"},{\"@type\":\"ListItem\",\"position\":18,\"name\":\"Assurez-vous\",\"url\":\"https:\/\/crystals.rocks\/fr\/minerals\/sicherite\/\",\"description\":\"Sicherite est un min\u00e9ral thallium ars\u00e9niate sulfoselte extr\u00eamement rare appartenant au syst\u00e8me cristallin orthorhombique, d\u00e9couvert pour la premi\u00e8re fois dans les cavit\u00e9s des dolomies triasiques de la carri\u00e8re c\u00e9l\u00e8bre de Lengenbach, Suisse.\",\"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 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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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/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\/fr\/minerals\/bismutotantalite\/\">\n\t\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\t\t<strong>Bismutotantalite<\/strong>\n\t\t\t\t\t\t\t\t<span>La bismutotantalite est un min\u00e9ral oxyde rare et lourd de tantale-bismuth appartenant au groupe de la columbite-tantalite, cristallisant dans le syst\u00e8me cristallin orthorhombique. Caract\u00e9ris\u00e9e par une densit\u00e9 exceptionnellement \u00e9lev\u00e9e (jusqu&#039;\u00e0 8.98\u20139.0 g\/cm\u00b3), un \u00e9clat sub-adamantin \u00e0 r\u00e9sineux et des indices de r\u00e9fraction \u00e9lev\u00e9s, elle se pr\u00e9sente comme un min\u00e9ral accessoire de stade tardif dans des pegmatites granitiques fortement fractionn\u00e9es, enrichies en lithium-c\u00e9sium-tantale (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\/fr\/minerals\/cattierite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/cattierite.jpg\" alt=\"catti\u00e9rite\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>La cattierite est un min\u00e9ral rare de sulfure de cobalt de formule chimique CoS\u2082, appartenant au groupe de la pyrite. D\u00e9couverte pour la premi\u00e8re fois dans les riches gisements stratiformes de cuivre-cobalt de la ceinture cuprif\u00e8re du Katanga en R\u00e9publique d\u00e9mocratique du Congo, elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme de cristaux microscopiques m\u00e9talliques gris ros\u00e9 \u00e0 gris fonc\u00e9, de cubes et d&#039;agr\u00e9gats granulaires associ\u00e9e \u00e0 d&#039;autres sulfures de m\u00e9taux de base.<\/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\/fr\/minerals\/delhayelite\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/delhayelite.jpg\" alt=\"delhay\u00e9lite\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Delhay\u00e9lite<\/strong>\n\t\t\t\t\t\t\t\t<span>La delhay\u00e9lite est un min\u00e9ral phyllosilicate hydrat\u00e9 de potassium-calcium-sodium, rare et structurellement complexe, contenant des halog\u00e8nes volatils essentiels et des anions sulfate (Cl, F et SO\u2084\u00b2\u207b). D\u00e9couverte initialement dans les laves n\u00e9ph\u00e9linitiques peralcalines sous-satur\u00e9es en silice du mont Shaheru en R\u00e9publique d\u00e9mocratique du Congo, elle cristallise dans le syst\u00e8me cristallin orthorhombique et sert de min\u00e9ral indicateur important pour les volatils de fin de stade...<\/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\/fr\/minerals\/edscottite\/\">\n\t\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\t\t<strong>Edscottite<\/strong>\n\t\t\t\t\t\t\t\t<span>L&#039;edscottite est un min\u00e9ral ultra-rare de carbure de fer (Fe5C2) d\u00e9couvert \u00e0 l&#039;int\u00e9rieur de la m\u00e9t\u00e9orite de fer de Wedderburn, form\u00e9e comme une phase lors du refroidissement lent du noyau d&#039;un ancien plan\u00e9t\u00e9simal.<\/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\/fr\/minerals\/ferropericlase\/\">\n\t\t\t\t\t\t\t\t<img src=\"https:\/\/crystals.rocks\/wp-content\/uploads\/2026\/08\/ferropericlase.jpg\" alt=\"ferrop\u00e9riclase\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>La ferropericlase (ou magn\u00e9siow\u00fcstite) est une vari\u00e9t\u00e9 ou esp\u00e8ce de p\u00e9riclase contenant du fer, repr\u00e9sent\u00e9e par la formule chimique (Mg,Fe)O. Elle est interpr\u00e9t\u00e9e comme l&#039;un des principaux composants min\u00e9raux du manteau inf\u00e9rieur de la Terre, aux c\u00f4t\u00e9s de la p\u00e9rovskite silicat\u00e9e, se pr\u00e9sentant fr\u00e9quemment sous forme de micro-inclusions dans les diamants du manteau profond.<\/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\/fr\/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=\"Olivine\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Olivine<\/strong>\n\t\t\t\t\t\t\t\t<span>La forst\u00e9rite est le p\u00f4le riche en magn\u00e9sium de la s\u00e9rie de solutions solides de l&#039;olivine (Mg\u2082SiO\u2084 - Fe\u2082SiO\u2084), cristallisant dans le syst\u00e8me cristallin orthorhombique. En tant que min\u00e9ral orthosilicate (n\u00e9sosilicate) essentiel formant les roches, elle constitue la phase volum\u00e9trique dominante du manteau sup\u00e9rieur de la Terre (p\u00e9ridotite\/dunite) et est r\u00e9pandue dans les roches ign\u00e9es ultramafiques, les calcaires dolomitiques m\u00e9tamorphis\u00e9s par contact et les m\u00e9t\u00e9orites chondritiques primitives. Les vari\u00e9t\u00e9s interm\u00e9diaires de qualit\u00e9 gemme riches en...<\/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\/fr\/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=\"Gal\u00e8ne\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Gal\u00e8ne<\/strong>\n\t\t\t\t\t\t\t\t<span>La gal\u00e8ne est la principale forme min\u00e9rale naturelle du sulfure de plomb(II) (PbS), cristallisant dans le syst\u00e8me cristallin isom\u00e9trique avec une structure cristalline de type halite (sel gemme). En tant que minerai de plomb le plus critique et le plus abondant au monde\u2014et une source historique majeure d&#039;argent sous-produit\u2014la gal\u00e8ne est c\u00e9l\u00e8bre pour sa densit\u00e9 \u00e9lev\u00e9e (~7,6), son \u00e9clat m\u00e9tallique \u00e9clatant, sa trace gris plomb et son cubique parfait...<\/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\/fr\/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>Gerstleyite<\/strong>\n\t\t\t\t\t\t\t\t<span>La gerstleyite est un min\u00e9ral sulfosel hydrat\u00e9 extr\u00eamement rare de sodium, d&#039;antimoine et d&#039;arsenic, remarquable comme l&#039;un des premiers sulfosels alcalins d\u00e9couverts. Elle se pr\u00e9sente g\u00e9n\u00e9ralement sous forme d&#039;agr\u00e9gats fibreux ou lamellaires allant du rouge cinabre au rouge sombre, dans les d\u00e9p\u00f4ts borat\u00e9s lacustres.<\/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\/fr\/minerals\/geversite\/\">\n\t\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\t\t<strong>Geversite<\/strong>\n\t\t\t\t\t\t\t\t<span>La geversite est un min\u00e9ral rare du groupe du platine (MGP) de composition chimique PtSb\u2082, cristallisant dans le type structural de la pyrite dans le syst\u00e8me isom\u00e9trique. D\u00e9crite pour la premi\u00e8re fois dans la mine de Driekop, dans le Complexe ign\u00e9 du Bushveld, en Afrique du Sud, elle forme des grains m\u00e9talliques microscopiques, des cubes automorphes et des intercroissances complexes g\u00e9n\u00e9ralement inclus dans les roches ultramafiques, les chromitites et les gisements de sulfures magmatiques.<\/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\/fr\/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=\"Halite\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>L&#039;halite est la forme min\u00e9rale du chlorure de sodium (NaCl), commun\u00e9ment appel\u00e9e sel gemme. Elle forme des cristaux isom\u00e9triques dans les d\u00e9p\u00f4ts \u00e9vaporitiques et est essentielle \u00e0 la vie humaine, \u00e0 l&#039;industrie et \u00e0 la production chimique.<\/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\/fr\/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>Le kernowite est un min\u00e9ral hydrat\u00e9 rare d&#039;ars\u00e9niate de cuivre et de fer, d\u00e9couvert \u00e0 St Day, en Cornouailles, au Royaume-Uni. Il est l&#039;analogue domin\u00e9 par le fer du liroconite. Connu pour ses cristaux vert \u00e9meraude distinctifs, il cristallise dans le syst\u00e8me monoclinique et se forme g\u00e9n\u00e9ralement sous la forme de cristaux tabulaires \u00e0 en forme de coin dans les zones oxyd\u00e9es des gisements de cuivre.<\/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\/fr\/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=\"krotite\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>Le krotite est un min\u00e9ral d&#039;oxyde d&#039;aluminate de calcium (CaAl\u2082O\u2084) \u00e0 basse pression et haute temp\u00e9rature, d\u00e9couvert dans les inclusions r\u00e9fractaires des m\u00e9t\u00e9orites chondritiques primitives, servant comme l&#039;un des premiers mat\u00e9riaux solides form\u00e9s dans la n\u00e9buleuse solaire.<\/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\/fr\/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=\"Manandonite\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>La manandonite est une esp\u00e8ce min\u00e9rale phyllosilicate triocta\u00e9drique-diocta\u00e9drique extraordinairement rare, contenant du lithium et du bore, appartenant structurellement au groupe serpentine-kaolinite 1:1. Document\u00e9e pour la premi\u00e8re fois dans les pegmatites granitiques fortement fractionn\u00e9es de Madagascar, elle est unique en min\u00e9ralogie en tant que l&#039;un des rares silicates en feuillets qui int\u00e8gre du bore structural essentiel dans les couches t\u00e9tra\u00e9driques ainsi que du lithium octa\u00e9drique essentiel et...<\/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\/fr\/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=\"Naldrettite\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>La naldrettite est un min\u00e9ral rare d&#039;antimoniure de palladium (Pd2Sb) d\u00e9couvert dans le district minier de Sudbury, se formant dans des conditions hydrothermales tardives magmatiques au sein de gisements de sulfures de nickel-cuivre.<\/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\/fr\/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=\"pseudorutile\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>Pseudorutile est un min\u00e9ral interm\u00e9diaire d&#039;oxyde de titane-fer form\u00e9 principalement lors de l&#039;alt\u00e9ration \u00e0 basse temp\u00e9rature et du lessivage progressif de l&#039;ilm\u00e9nite dans les d\u00e9p\u00f4ts de sables \u00e0 min\u00e9raux lourds. Structurellement et chimiquement distinct du rutile et de l&#039;ilm\u00e9nite, il joue un r\u00f4le transitionnel essentiel dans la s\u00e9quence d&#039;alt\u00e9ration superg\u00e8ne de l&#039;ilm\u00e9nite en leucox\u00e8ne et en rutile\/anatase secondaires, ce qui en fait une phase essentielle dans les...<\/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\/fr\/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=\"Quartz\" loading=\"lazy\" decoding=\"async\">\n\t\t\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\t<span>Le quartz est le polymorphe trigonal d\u00e9finitif \u00e0 basse temp\u00e9rature du dioxyde de silicium (SiO\u2082), stable jusqu&#039;\u00e0 573 \u00b0C \u00e0 pression ambiante. En tant que r\u00e9f\u00e9rence d\u00e9finissant la duret\u00e9 7 sur l&#039;\u00e9chelle de Mohs et l&#039;un des tectosilicates \u00e0 charpente formant des roches les plus abondants de la cro\u00fbte continentale terrestre, le quartz est r\u00e9put\u00e9 pour sa forte pi\u00e9zo\u00e9lectricit\u00e9, sa durabilit\u00e9 chimique, son absence de clivage et sa vaste gamme...<\/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\/fr\/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>Le rubis est la vari\u00e9t\u00e9 rouge prestigieuse et de qualit\u00e9 gemme de l&#039;esp\u00e8ce min\u00e9rale du corindon (oxyde d&#039;aluminium, Al\u2082O\u2083), color\u00e9 principalement par des traces de chrome (Cr\u00b3\u207a se substituant \u00e0 Al\u00b3\u207a en coordination octa\u00e9drique). Renomm\u00e9 comme l&#039;une des pierres gemmes cardinales traditionnelles, il pr\u00e9sente une duret\u00e9 Mohs exceptionnelle (9), des indices de r\u00e9fraction \u00e9lev\u00e9s, un pl\u00e9ochro\u00efsme prononc\u00e9 et une fluorescence rouge vive induite par le chrome sous UV \u00e0 ondes longues...<\/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\/fr\/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=\"Assurez-vous\" loading=\"lazy\" decoding=\"async\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<strong>Assurez-vous<\/strong>\n\t\t\t\t\t\t\t\t<span>Sicherite est un min\u00e9ral thallium ars\u00e9niate sulfoselte extr\u00eamement rare appartenant au syst\u00e8me cristallin orthorhombique, d\u00e9couvert pour la premi\u00e8re fois dans les cavit\u00e9s des dolomies triasiques de la carri\u00e8re c\u00e9l\u00e8bre de Lengenbach, Suisse.<\/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\/fr\/wp-json\/wp\/v2\/pages\/39","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/comments?post=39"}],"version-history":[{"count":13,"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/pages\/39\/revisions"}],"predecessor-version":[{"id":5035,"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/pages\/39\/revisions\/5035"}],"wp:attachment":[{"href":"https:\/\/crystals.rocks\/fr\/wp-json\/wp\/v2\/media?parent=39"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}