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Štěpite & Proustite

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CZM117658

Štěpite & Proustite

Radioactive

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.2 × 0.5 cm
Description

Native arsenic overgrown by nice aggregates of štepite. Small proustite crystals in paragenesis.

Mineral Data
What's on the rock

Štěpite

Formula: 
U(AsO3OH)2·4H2O
Hardness: 
0.0
Type Locality: 
Geschieber vein, Svornost Mine (Einigkeit Mine), Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

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