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Brassite On Native Arsenic

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SHS74581

Brassite On Native Arsenic

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.6 × 1.8 cm
Description

Brassite on native arsenic

Mineral Data
What's on the rock

Brassite

Formula: 
Mg(HAsO4)·4H2O
Strunz: 
8.CE.15
Crystal System: 
Orthorhombic
Hardness: 
0.0
Colour: 
White
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Arsenic

Formula: 
As
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.5
Streak: 
Grey