Cadmoselite | |
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![]() Cadmoselite from the type locality: Ust' Uyok Deposit, Turan District, Tuva Republic, Russian Federation | |
General | |
Category | Minerals |
Formula | CdSe |
IMA symbol | Cds |
Identification | |
Formula mass | 191.37 |
Color | Black to pale grey |
Luster | Adamantine – Resinous |
Streak | Black |
Diaphaneity | Translucent to Opaque |
Specific gravity | 5.47 |
Cadmoselite is a rare cadmium selenide mineral with chemical formula CdSe. Cadmoselite crystallizes in the hexagonal system and occurs as black to pale grey opaque crystals and grains.[1][2]
It was first described in 1957 for an occurrence in Tuva. The mineral occurs as interstitial grains in sandstone formed under reducing alkaline diagenetic conditions.[1][2]