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Čejkaite. Svornost Mine, Jáchymov, Jáchymov District, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic FOV=4 mm Photo © Petr Fuchs

Čejkaite. Svornost Mine, Jáchymov, Jáchymov District, Krušné Hory Mts, Karlovy Vary Region, Bohemia, Czech Republic FOV=4 mm Photo © Petr Fuchs

Andersonite, 	Na2Ca(UO2)(CO3)3•6(H2O),  Drosen, Ronneburg area, Thüringia, Germany. Fov 1 mm. Copyright Stephan Wolfsried

Andersonite, Na2Ca(UO2)(CO3)3•6(H2O), Drosen, Ronneburg area, Thüringia, Germany. Fov 1 mm. Copyright Stephan Wolfsried

An octahedral diamond crystal with adamantine luster and transparent portions.The color is typical of the Argyle Mine, a light yellow/brown. It is very cool with a loupe because you can see the carbon inclusions within the transparent portions.It is very large for a Diamond, 4.68 carats. Argyle Mine Western Australia. Trinity Mineral Co Auction: Minerals

An octahedral diamond crystal with adamantine luster and transparent portions.The color is typical of the Argyle Mine, a light yellow/brown. It is very cool with a loupe because you can see the carbon inclusions within the transparent portions.It is very large for a Diamond, 4.68 carats. Argyle Mine Western Australia. Trinity Mineral Co Auction: Minerals

OLIVENITE with BAYLDONITE and MALACHITE  Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region, Namibia   Here is an excellent specimen of this rarely encountered Arsenate mineral, featuring sharp, deep-green crystals of Olivenite up to 6 mm across nestled into hollow areas in a mixed matrix of Bayldonite, Malachite and massive Olivenite.

OLIVENITE with BAYLDONITE and MALACHITE Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region, Namibia Here is an excellent specimen of this rarely encountered Arsenate mineral, featuring sharp, deep-green crystals of Olivenite up to 6 mm across nestled into hollow areas in a mixed matrix of Bayldonite, Malachite and massive Olivenite.

Crocoite on Gibbsite - Adelaide mine, Dundas, Zeehan District, Tasmania, Australia

Crocoite on Gibbsite - Adelaide mine, Dundas, Zeehan District, Tasmania, Australia

gemstone chart

gemstone chart

d38257cdc7d7862d35e2883e291ffbb3.jpg 300×3,900 pixels

d38257cdc7d7862d35e2883e291ffbb3.jpg 300×3,900 pixels

Erythrite

Erythrite

Pascoite, Ca3(V10O28) · 17H2O,

Pascoite, Ca3(V10O28) · 17H2O,

Kolbeckite. Schlarbaumsteinbruch, Klausen, Bad Gleichenberg, Steiermark, Österreich Taille=2.1 mm Photo Enrico Bonacina

Kolbeckite. Schlarbaumsteinbruch, Klausen, Bad Gleichenberg, Steiermark, Österreich Taille=2.1 mm Photo Enrico Bonacina

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