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fluorite with quartz crystals, china

fluorite with quartz crystals, china

Macro photo of ocean sand

Macro photo of ocean sand

Prehnite on Quartz with Amethyst phantoms

Prehnite on Quartz with Amethyst phantoms

Ajoite - a hydrated sodium potassium copper aluminium silicate hydroxide mineral. Ajoite has the chemical formula (Na,K)Cu7AlSi9O24(OH)6·3(H2O),[5] and minor Mn, Fe and Ca are usually also present in the structure.

Ajoite - a hydrated sodium potassium copper aluminium silicate hydroxide mineral. Ajoite has the chemical formula (Na,K)Cu7AlSi9O24(OH)6·3(H2O),[5] and minor Mn, Fe and Ca are usually also present in the structure.

Fluorite, Cave-in-Rock District, Illinois. This and more rare mineral specimens for sale on CuratorsEye.com

Fluorite, Cave-in-Rock District, Illinois. This and more rare mineral specimens for sale on CuratorsEye.com

Various quartz configurations.

Various quartz configurations.

Tucson2015-135SmithsoniteTsumebNamibia85mm.jpg (427971 bytes)

Tucson2015-135SmithsoniteTsumebNamibia85mm.jpg (427971 bytes)

rutile in quartz

rutile in quartz

Fluorite & Chalcopyrite / Germany

Fluorite & Chalcopyrite / Germany

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