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Brassite

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JYJ220089

Brassite

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.2 × 0.9 cm
Description

White fibrous brassite, a Mg arsenate, occuring as a dehydration product of partly replaced rösslerite.

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
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