{"id":5151,"date":"2026-09-20T06:14:36","date_gmt":"2026-09-20T06:14:36","guid":{"rendered":"https:\/\/crystals.rocks\/"},"modified":"2026-09-20T06:15:31","modified_gmt":"2026-09-20T06:15:31","slug":"kernowite","status":"publish","type":"post","link":"https:\/\/crystals.rocks\/sk\/article\/kernowite\/","title":{"rendered":"Kernowite"},"content":{"rendered":"

Kernovit je hydratovan\u00fd me\u010fovo-\u017eelezn\u00fd arzen\u00e1t s ide\u00e1lnym chemick\u00fdm vzorcem Cu\u2082Fe(AsO\u2084)(OH)\u2084\u00b74H\u2082O<\/strong>Je to arsenitanov\u00e9 miner\u00e1l a ferrick\u00e9ho \u017eeleza dominuj\u00faci analog\u00f3n lirokonitu, Cu\u2082Al(AsO\u2084)(OH)\u2084\u00b74H\u2082O<\/strong>V s\u00e9rii liroconitu\u2013kernowitu, Fe\u00b3\u207a sa nahr\u00e1dza Al\u00b3\u207a v \u0161truktur\u00e1lnom mieste bez z\u00e1sadn\u00e9ho zmeny celkovej \u0161trukt\u00fary. Kernowit je definovan\u00fd v pr\u00edpade, \u017ee \u017eelezit\u00fd \u017eelezo je dominantn\u00fdm zast\u00e1vate\u013eom tohto miesta; materi\u00e1l s dominanciou hlin\u00edka zost\u00e1va liroconitom, aj ke\u010f jeho farba je silne zelen\u00e1.<\/p>\n

\"Kernowite\"
Kernowite<\/figcaption><\/figure>\n

Miner\u00e1l je zn\u00e1my z star\u00fdch vzoriek, pravdepodobne zbieran\u00fdch v dole Wheal Gorland bl\u00edzko St Day, Cornwall, Anglicko. Vyskytuje sa ako sekund\u00e1rny miner\u00e1l v oxidovanom \u010dasti zlo\u017eeniny mediacej rudy. Kernowit je zvy\u010dajne zelen\u00fd, zatia\u013e\u010do dominuj\u00faci hlin\u00edk lirokonit je typicky modro-\u017elt\u00fd. Farba m\u00f4\u017ee nazna\u010dova\u0165 zv\u00fd\u0161en\u00fd obsah \u017eeleza, ale nem\u00f4\u017ee ur\u010di\u0165 identitu miner\u00e1lu, preto\u017ee mnoh\u00e9 zelen\u00e9 vzorky historicky ozna\u010den\u00e9 ako lirokonit s\u00fa pri anal\u00fdze st\u00e1le hlin\u00edkov\u00e9.<\/p>\n

Historia a objavovanie kernowitu<\/h2>\n

Kernowit bol schv\u00e1len\u00fd ako nov\u00e1 minera\u013en\u00e1 \u0161pecies Medzin\u00e1rodnou mineralogickou asoci\u00e1ciou v roku 2020 pod \u010d\u00edslom n\u00e1vrhu IMA 2020-053. Form\u00e1lny popis minera\u0142u bol publikovan\u00fd v roku 2021. Typov\u00fd materi\u00e1l nie je vzorka z\u00edskan\u00e1 ned\u00e1vno; namiesto toho ide o historick\u00fa vzorku pravdepodobne dolovan\u00fa okolo roku 1800 na Wheal Gorland. Pred svoj\u00edm op\u00e4tovn\u00fdm vy\u0161etren\u00edm bol materi\u00e1l ozna\u010den\u00fd ako lirokonit a pre\u0161iel cez nieko\u013eko historick\u00fdch mineralogick\u00fdch zbierok, vr\u00e1tane t\u00fdch Cornishsk\u00e9ho zbierate\u013ea Philipa Rashleigha a p\u00e1na Arthur Russell.<\/p>\n

Miner\u00e1l bol pomenovan\u00fd pod\u013ea Kernow<\/em>, meno v cornskom jazyku pre Cornwall. V\u00fdber odr\u00e1\u017ea typov\u00e9 miesto namiesto konkr\u00e9tneho \u010dloveka. Kernowit bol identifikovan\u00fd po mineralogickom sk\u00faman\u00ed uk\u00e1zalo, \u017ee \u017eelezo s valenciou 3, namiesto hlin\u00edka, dominuje v pr\u00edslu\u0161nom oktaedr\u00e1lne s\u00faradenom mieste v materi\u00e1li, ktor\u00fd bol predt\u00fdm zaraden\u00fd medzi lirokonit.<\/p>\n

Jeho rozpozn\u00e1vanie ilustruje kompozi\u010dn\u00fd rozdiel v zn\u00e1mom s\u00e9rii miner\u00e1lov. Predch\u00e1dzaj\u00face pozorovania uk\u00e1zali, \u017ee zelen\u00e9 vzorky lirokonitu \u010dasto obsahuj\u00fa viac \u017eeleza ako modr\u00e9 pr\u00edklady. Av\u0161ak samotn\u00e9 bohatenie \u017eelezom neod\u00f4vod\u0148uje oddelen\u00fd druh. Kernowit je obmedzen\u00fd na materi\u00e1l, v ktorom Fe\u00b3\u207a prekra\u010duje Al\u00b3\u207a v pr\u00edslu\u0161nom \u0161truktur\u00e1lnom mieste. T\u00e1to defin\u00edcia druhu sa riadi pravidlom dominuj\u00faceho zlo\u017eenia pou\u017e\u00edvan\u00fdm v s\u00fa\u010dasnej nomenklat\u00fare miner\u00e1lov.<\/p>\n

Vznik a geologick\u00e9 v\u00fdskyt kernowitu<\/h2>\n

Kernowit sa vyskytuje ako sekund\u00e1rny miner\u00e1l v dutin\u00e1ch v kvartzo-bohatom gossane. Gossan je oxidovan\u00fd, zv\u00e1penat\u00fd materi\u00e1l vzniknut\u00fd nad alebo okolo sulfidov\u00fdch r\u0443\u0434. V typovom materi\u00e1li s\u00fa dutiny obsahuj\u00face zl\u00fdm diferencovan\u00e9 mikrokrystalick\u00e9 \u0161ed\u00e9 sulfidy a zl\u00fdm kry\u0161talick\u00e9 f\u00e1zy obsahuj\u00face arz\u00e9n, vr\u00e1tane pharmacosideritu a mineralov skupiny olivenitu. T\u00e1to asoci\u00e1cia je v s\u00falade s v\u00fdskytom miner\u00e1lov pri oxid\u00e1cii a alter\u00e1cii prim\u00e1rnej s\u00fastavy medi\u2013arz\u00e9nov\u00fdch sulfidov.<\/p>\n

Vznik kernowitu vy\u017eaduje dostupnos\u0165 medi, \u017eeleza(III), arzenu, kysl\u00edka, hydroxidov\u00fdch tekut\u00edn a vody. Po\u010das zne\u010distenia oxid\u00e1cia prim\u00e1rnych sulfidov m\u00f4\u017ee uvo\u013eni\u0165 Cu\u00b2\u207a a Fe\u00b3\u207a do kysl\u00fdch alebo miestne neutralizovan\u00fdch roztokov. Arz\u00e9n sa m\u00f4\u017ee uvo\u013eni\u0165 z arz\u00e9nobsah\u00facich sulfidov alebo arz\u00e9nidov a prepravova\u0165 ako arzenitanov\u00e9 \u0161pecie za oxida\u010dn\u00fdch podmienok. Kde sa tieto zlo\u017eky interaguj\u00fa vo vo\u013en\u00fdch priestoroch, ako s\u00fa trhliny a dutiny v gossane, m\u00f4\u017eu sa precipitova\u0165 hydrotovan\u00e9 me\u010f-\u017eelezn\u00e9 arzenity.<\/p>\n

Hydrat\u00e1cia miner\u00e1lu ukazuje na vznik v bl\u00edzkosti povrchu alebo v n\u00edzko teplotnom vodnom prostred\u00ed, nie vysokoteplotn\u00fdch magmatick\u00fdch podmienkach. Jeho v\u00fdskyt spolu s farmakosideritom a miner\u00e1lmi skupiny olivenitu tie\u017e odr\u00e1\u017ea miestne zmeny pH, redoxn\u00fdch podmienok, koncentr\u00e1ci\u00ed rozpu\u0161tenej kovovej l\u00e1tky a aktivity vody. Tak\u00e9to podmienky m\u00f4\u017eu meni\u0165 v malom priestore v r\u00e1mci tej istej oxidovanej rudy, \u010d\u00edm sa umo\u017e\u0148uje v\u00fdskyt viacer\u00fdch miner\u00e1lov mediho a \u017eelezn\u00e9ho arzenitanu s\u00fa\u010dasne.<\/p>\n

Kristalick\u00e1 \u0161trukt\u00fara kernowitu<\/h2>\n

Kernowit kry\u0161talizuje v monoklinickom kry\u0161t\u00e1lovom syst\u00e9me. Jeho \u0161trukt\u00fara bola ur\u010den\u00e1 jedno-kry\u0161talovou rentgenovou difrakciou v priestorovej skupine I2\/a<\/strong>, ne\u0161tandardn\u00e9 nastavenie konven\u010dn\u00e9ho priestorov\u00e9ho skupiny C2\/c<\/strong>\u0160trukt\u00fara je \u00fazko spojen\u00e1 s lirokonitom, \u010do s\u00fahlas\u00ed so substit\u00faciou Fe\u00b3\u207a za Al\u00b3\u207a namiesto \u00faplnej rekon\u0161trukcie miner\u00e1lneho r\u00e1mca.<\/p>\n

\"kernowite\"
kernowite<\/figcaption><\/figure>\n

\u0160trukt\u00fara sa sklad\u00e1 z navz\u00e1jom prepojen\u00fdch tetrahedrov arsenitanov, hydroxylov\u00fdch kovov\u00fdch koordina\u010dn\u00fdch poly\u00e9drov a molek\u00fal vody. Me\u010f zauj\u00edma miesta ovplyvnen\u00e9 Jahnov\u00fdm\u2013Tellerov\u00fdm deform\u00e1ciou, charakteristickou pre zl\u00fa\u010deniny Cu\u00b2\u207a, \u010do vytv\u00e1ra pred\u013a\u017een\u00e9 koordina\u010dn\u00e9 prostredie me\u010f\u2013kysl\u00edk. \u017delezo(III) zauj\u00edma oktaedricky koordinovan\u00e9 miesto, ktor\u00e9 je v lirokonite prim\u00e1rne zaujat\u00e9 hlin\u00edkom. Nahradenie Al\u00b3\u207a v\u00e4\u010d\u0161\u00edm kat\u00f3nom Fe\u00b3\u207a sp\u00f4sobuje merate\u013en\u00e9 \u0161truktur\u00e1lne rozdiely, pri\u010dom sa zachov\u00e1va rovnak\u00fd z\u00e1kladn\u00fd \u0161truktur\u00e1lny typ.<\/p>\n

Molekuly vody maj\u00fa \u0161truktur\u00e1lny v\u00fdznam v kernowite. Ide\u00e1lny vzorec obsahuje \u0161tyri molekuly vody na jednotku vzorca, navy\u0161e \u0161tyri hydroxylov\u00e9 skupiny. Vod\u00edkov\u00e9 v\u00e4zby medzi molekulami vody, hydroxylov\u00fdmi skupinami a kysl\u00edkov\u00fdmi at\u00f3mami arzen\u00e1tov\u00fdch tetraedrov prispievaj\u00fa k stability hydrotovan\u00e9ho \u0161trukt\u00fary. Strata alebo zmena \u0161truktur\u00e1lnej vody m\u00f4\u017ee ovplyvni\u0165 miner\u00e1l pri zahrievan\u00ed, dehydrat\u00e1cii alebo dlhodobom alter\u00e1cii.<\/p>\n

Fyzik\u00e1lne a chemick\u00e9 vlastnosti kernowitu<\/h2>\n

Kernovit sa zvy\u010dajne opisuje ako zelen\u00fd po emeraldovo zelen\u00fd. Jeho farba je spojen\u00e1 s pr\u00edtomnos\u0165ou Cu\u00b2\u207a a Fe\u00b3\u207a, hoci presn\u00e1 odst\u00e1na z\u00e1vis\u00ed od hr\u00fabky zrnka, orient\u00e1cie kry\u0161t\u00e1lu, vkladov, stavu povrchu a relat\u00edvnych podielov \u017eeleza a hlin\u00edka. M\u00f4\u017ee sa vyskytova\u0165 ako mal\u00e9 kry\u0161t\u00e1ly alebo agreg\u00e1ty kry\u0161t\u00e1lov vytv\u00e1raj\u00face dutiny v kvartzo-gossanovom materi\u00e1li. Preto\u017ee potvrden\u00fd materi\u00e1l poch\u00e1dza z star\u00fdch vzoriek a je \u00fazko prepojen\u00fd s in\u00fdmi sekund\u00e1rnymi f\u00e1zami, mnoh\u00e9 konven\u010dn\u00e9 fyzik\u00e1lne merania s\u00fa obmedzen\u00e9.<\/p>\n

Ide\u00e1lny vzorec, Cu\u2082Fe(AsO\u2084)(OH)\u2084\u00b74H\u2082O<\/strong>, obsahuje me\u010f, \u017eelezit\u00fd \u017eelezo, arzenitan, hydroxylov\u00e9 skupiny a molekul\u00e1rnu vodu. Elektr\u00f3novo mikroprobov\u00fd anal\u00fdza typov\u00e9ho materi\u00e1lu, doplnen\u00e1 Ramanovou spektrosk\u00f3piou, dal empirick\u00fd zlo\u017eenie bl\u00edzke k Cu\u2081.\u2088\u2088(Fe\u2080.\u2087\u2089Al\u2080.\u2080\u2089)\u03a3\u2080.\u2088\u2088(As\u2081.\u2081\u2082O\u2084)(OH)\u2084\u00b73.65H\u2082O<\/strong>T\u00e1to anal\u00fdza ukazuje, \u017ee typov\u00fd materi\u00e1l nie je chemicky ide\u00e1lny: obsahuje mal\u00e9 mno\u017estvo hlin\u00edka a mal\u00e9 odch\u00fdlky v obsahu me\u010fa, \u017eeleza, arz\u00e9nu a vody. Tieto odch\u00fdlky s\u00fa typick\u00e9 pre sekund\u00e1rne hydrotovan\u00e9 miner\u00e1ly a nezmenia priradenie druhu, ak Fe\u00b3\u207a zost\u00e1va dominantn\u00fdm nad Al\u00b3\u207a.<\/p>\n

Kernowit by mal by\u0165 pova\u017eovan\u00fd za hydratovan\u00fd miner\u00e1l, ktor\u00fd m\u00f4\u017ee by\u0165 citliv\u00fd na zmeny. Dehydrat\u00e1cia povrchu, po\u010dasie, mikrotrhliny a zmie\u0161anie s pri\u013eahl\u00fdmi arsen\u00e1tov\u00fdmi f\u00e1zami m\u00f4\u017eu zlo\u017ei\u0165 analytick\u00e9 v\u00fdsledky. Jeho optick\u00fd vzh\u013ead a pribli\u017en\u00e1 chemick\u00e1 zlo\u017eka s\u00fa u\u017eito\u010dn\u00e9 predbe\u017en\u00e9 indik\u00e1tory, ale definit\u00edvna identifik\u00e1cia vy\u017eaduje kvantitat\u00edvny anal\u00fdzu a \u0161truktur\u00e1lnu potvrdenie.<\/p>\n

Typy a odrodov\u00e9 formy kernowitov<\/h2>\n

Kernowit nem\u00e1 ofici\u00e1lne uzn\u00e1van\u00e9 odrody. Nasleduj\u00face pojmy opisuj\u00fa kompozi\u010dn\u00e9 alebo geologick\u00e9 vz\u0165ahy namiesto samostatn\u00fdch odroda:<\/p>\n

    \n
  • \u017delezo-dominantn\u00fd Kernowit:<\/strong> Materi\u00e1l v s\u00e9rii lirokonit\u2013kernovit, v ktorom je Fe\u00b3\u207a dominantnej\u0161\u00ed nad Al\u00b3\u207a na pr\u00edslu\u0161nom \u0161trukt\u00farnom mieste.<\/li>\n
  • Hlin\u00edkov\u00e1 kernovit:<\/strong> Kernowit m\u00f4\u017ee obsahova\u0165 mal\u00e9 mno\u017estvo Al\u00b3\u207a, ako ukazuje anal\u00fdza typov\u00e9ho materi\u00e1lu. Zost\u00e1va kernowitom, k\u00fdm preva\u017euje Fe\u00b3\u207a.<\/li>\n
  • Lirokonit\u2013Kernozit priemern\u00fd materi\u00e1l:<\/strong> Vzorky s premenn\u00fdm obsahom Fe\u00b3\u207a a Al\u00b3\u207a sa vyskytuj\u00fa v r\u00e1mci solidn\u00fdch rie\u0161en\u00ed. Ich n\u00e1zov miner\u00e1lu z\u00e1vis\u00ed od dominuj\u00faceho kat\u00f3nu, nie od farby.<\/li>\n
  • Zelen\u00e1 lirokonit:<\/strong> Zelen\u00e1 farba sama nepotvrduje Kernowit. Mnoh\u00e9 zelen\u00e9 vzorky maj\u00fa dominanciu Al\u00b3\u207a a mali by by\u0165 identifikovan\u00e9 ako lirokonit po chemickom anal\u00fdze.<\/li>\n<\/ul>\n

    Kde sa nach\u00e1dza Kernowite?<\/h2>\n
    \"kernowite\"
    kernowite<\/figcaption><\/figure>\n

    Potvrden\u00e1 typov\u00e1 lokalita je Wheal Gorland, bl\u00edzko St Day v Cornwalu, Anglicko. Wheal Gorland bol s\u00fa\u010das\u0165ou historicky d\u00f4le\u017eit\u00e9ho mediovej doliny okolo St Day a bol hlavne \u0165a\u017een\u00fd pre medi\u00e9ne rudy. Typov\u00fd vzorka je spojen\u00e1 so star\u00fdmi horn\u00fdmi materi\u00e1lmi, pravdepodobne zbieran\u00fdmi okolo roku 1800, a nesk\u00f4r ulo\u017een\u00e1 v muzejn\u00fdch zbierkach.<\/p>\n

    Miner\u00e1l je hl\u00e1sen\u00fd z dut\u00edn v kvartzo-gossane, nie z \u010dist\u00e9ho nezmenen\u00e9ho sulfidov\u00e9ho rudy. Jeho priame asoci\u00e1cie zah\u0155\u0148aj\u00fa zlomen\u00e9 kry\u0161taloval\u00e9 arsenov\u00e9 f\u00e1zy, farmakosiderit, miner\u00e1ly skupiny olivenitu a nerozli\u0161ovan\u00e9 \u0161ed\u00e9 sulfidov\u00e9 materi\u00e1ly. Tento prostredie je charakteristick\u00e9 pre oxidovan\u00fa s\u00fastavu meden\u00fdch a ars\u00e9nov\u00fdch miner\u00e1lov.<\/p>\n

    Kernowit by sa nemal pova\u017eova\u0165 za \u0161iroko roz\u0161\u00edren\u00e9 miner\u00e1l s mnoh\u00fdmi potvrden\u00fdmi lokality. Jeho form\u00e1lna defin\u00edcia je ned\u00e1vna a mnoh\u00e9 historick\u00e9 zelen\u00e9 vzorky z Cornwalu alebo in\u00fdch oxidovan\u00fdch medi\u00e1nov m\u00f4\u017eu by\u0165 nevyhodnoten\u00e9 pomocou modern\u00fdch kvantitat\u00edvnych a kry\u0161talografick\u00fdch met\u00f3d. Materi\u00e1l op\u00edsan\u00fd historicky ako bohat\u00fd na \u017eelezo lirokonit mus\u00ed by\u0165 preanalyzovan\u00fd pred t\u00fdm, ne\u017e sa mu prirad\u00ed k Kernowitu.<\/p>\n

    Ako identifikova\u0165 Kernowit<\/h2>\n

    Vizualn\u00e1 sk\u00fa\u0161ka m\u00f4\u017ee poskytn\u00fa\u0165 po\u010diato\u010dn\u00fd indik\u00e1tor, preto\u017ee Kernowit je zvy\u010dajne zelen\u00fd a vyskytuje sa v oxidovanom mediovo-ars\u00e9novom assembl\u00e1\u017ei. Av\u0161ak vizu\u00e1lna identifik\u00e1cia je neist\u00e1. Mediavo-arsen\u00e1ty, mediovo-fosf\u00e1ty, hydratovan\u00e9 \u017eelezovo-arsen\u00e1ty a zelen\u00fd lirokonit m\u00f4\u017eu vznika\u0165 v rovnakom prostred\u00ed a m\u00f4\u017eu sa podob\u00e1va\u0165 na seba v rukavici alebo pod mikroskopom.<\/p>\n

    Elektr\u00f3nov\u00e1 mikroprobov\u00e1 anal\u00fdza je hlavn\u00fdm sp\u00f4sobom ur\u010denia, \u010di dominuje Fe\u00b3\u207a alebo Al\u00b3\u207a v pr\u00edslu\u0161nom mieste. Anal\u00fdza by mala mera\u0165 me\u010f, \u017eelezo, hlin\u00edk, arz\u00e9n a in\u00e9 mo\u017en\u00e9 substitu\u010dn\u00e9 prvky, zatia\u013e \u010do obsah vody a hydroxidov mus\u00ed by\u0165 odvoden\u00fd zo stehyometrie a doplnen\u00fd, ak je to mo\u017en\u00e9, spektroskopick\u00fdmi met\u00f3dami. Ramanovsk\u00e1 spektroskopia je u\u017eito\u010dn\u00e1 na potvrdenie pr\u00edtomnosti arzen\u00e1tov\u00fdch skup\u00edn, hydroxylov\u00fdch skup\u00edn a \u0161truktur\u00e1lnej vody, najm\u00e4 ke\u010f s\u00fa kry\u0161t\u00e1ly pr\u00edli\u0161 mal\u00e9 pre konven\u010dn\u00e9 met\u00f3dy celkovej l\u00e1tky.<\/p>\n

    Jedno-kry\u0161talov\u00e1 rentgenov\u00e1 difrakcia poskytuje najpriamej\u0161ie potvrdenie \u0161trukt\u00fary, kde je mo\u017en\u00e9 izolova\u0165 vhodn\u00fd kry\u0161t\u00e1l. Prachov\u00e1 rentgenov\u00e1 difrakcia, elektr\u00f3nov\u00e1 difrakcia a elektr\u00f3nov\u00e1 difrakcia v sp\u00e4tnom smeri m\u00f4\u017eu tie\u017e pom\u00f4c\u0165 pri identifik\u00e1cii, hoci interpret\u00e1cia m\u00f4\u017ee by\u0165 \u0165a\u017ek\u00e1, ke\u010f s\u00fa zrn\u00e1 mal\u00e9, slabozakryt\u00e9, zvlh\u010den\u00e9 alebo prepojen\u00e9 s in\u00fdmi sekund\u00e1rnymi f\u00e1zami. D\u00f4veryhodn\u00e1 identifik\u00e1cia kernowitu by teda mala kombinova\u0165 v\u00fdskyt, chemick\u00fd zlo\u017eenie, Ramanove \u00fadaje a krystalografick\u00e9 d\u00f4kazy.<\/p>\n

    Hlavn\u00fdm miner\u00e1lom, ktor\u00fd vy\u017eaduje rozli\u0161ovanie, je lirokonit, Cu\u2082Al(AsO\u2084)(OH)\u2084\u00b74H\u2082O<\/strong>Kernowit a liroconit maj\u00fa rovnak\u00fd celkov\u00fd \u0161truktur\u00e1lny typ, podobn\u00e9 zvodnenie a bl\u00edzke chemick\u00e9 vzorce. Rozhoduj\u00facim krit\u00e9riom je preva\u017eovanie Fe\u00b3\u207a v kernowite vs. preva\u017eovanie Al\u00b3\u207a v liroconite. In\u00e9 spojen\u00e9 arzenity, vr\u00e1tane farmacosideritu a miner\u00e1lov skupiny olivenitu, sa l\u00ed\u0161ia v krystalickej \u0161trukt\u00fare, pomerom kati\u00f3nov, zvodnen\u00edm a optick\u00fdmi vlastnos\u0165ami.<\/p>\n

    Pouzitie a pouzitia Kernowitu<\/h2>\n

    Kernowit nem\u00e1 \u017eiadne priemyseln\u00e9, kame\u0148ov\u00e9, dekorat\u00edvne alebo r\u0443\u0434n\u00e9 pou\u017eitie. Vystupuje v obmedzen\u00fdch mno\u017estv\u00e1ch ako sekund\u00e1rny miner\u00e1l a nie je \u0165a\u017een\u00fd samostatne. Jeho vysok\u00fd obsah arz\u00e9nu ho tie\u017e \u010din\u00ed nevhodn\u00fdm pre be\u017en\u00e9 nakladanie bez vhodn\u00fdch opatren\u00ed pri zozbieran\u00ed mineralogick\u00fdch vzoriek.<\/p>\n

    Jeho pou\u017eitie je hlavne mineralogick\u00e9 a analytick\u00e9. Kernovit poskytuje definovan\u00fd koniec \u010dlenu \u017eelezit\u00e9ho oxidu pre s\u00e9riu lirokonitu\u2013kernovitu a umo\u017e\u0148uje presnej\u0161ie triedenie historick\u00fdch z\u00e1kladn\u00fdch vzoriek medi-arsen\u00e1tu z Cornwallu. T\u00e1to minera\u013e m\u00f4\u017ee by\u0165 tie\u017e pou\u017eit\u00e1 v \u0161t\u00fadi\u00e1ch sekund\u00e1rnych arsen\u00e1tov v oxidovan\u00fdch medi\u00fdch lo\u017eisk\u00e1ch, najm\u00e4 tam, kde substit\u00facia \u017eeleza\u2013hlin\u00edka ovplyv\u0148uje stabilitu a farbu miner\u00e1lu.<\/p>\n

     <\/p>","protected":false},"excerpt":{"rendered":"

    Kernowite is a hydrated copper\u2013iron arsenate mineral with the ideal chemical formula Cu\u2082Fe(AsO\u2084)(OH)\u2084\u00b74H\u2082O. It is an arsenate mineral and the ferric iron-dominant analogue of liroconite, Cu\u2082Al(AsO\u2084)(OH)\u2084\u00b74H\u2082O. In the liroconite\u2013kernowite series, Fe\u00b3\u207a substitutes for Al\u00b3\u207a at a structural site without fundamentally changing the overall framework. Kernowite is defined where ferric iron is the dominant occupant of […]<\/p>\n","protected":false},"author":1,"featured_media":5078,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Kernowite Mineral: Formula, Structure, History & Identification","_seopress_titles_desc":"Discover Kernowite, a hydrated copper-iron arsenate mineral. Explore its formula, crystal structure, Cornwall discovery history, and how to identify it.","_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":""},"categories":[1],"tags":[],"class_list":["post-5151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article"],"_links":{"self":[{"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/posts\/5151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/comments?post=5151"}],"version-history":[{"count":1,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/posts\/5151\/revisions"}],"predecessor-version":[{"id":5152,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/posts\/5151\/revisions\/5152"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/media\/5078"}],"wp:attachment":[{"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/media?parent=5151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/categories?post=5151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crystals.rocks\/sk\/wp-json\/wp\/v2\/tags?post=5151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}