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Slavkovite Calcioandyrobertsite & Geminite

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CZM142591

Slavkovite Calcioandyrobertsite & Geminite

Type Locality

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 0.8 × 0.5 cm
Description

Quartz with typical green slavkovite aggregates, deep blue calcioandyrobertsit and blue-green geminite.

Mineral Data
What's on the rock

Slavkovite

Formula: 
Cu13(AsO4)6(AsO3OH)4·23H2O
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Daniel adit level, 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

Calcioandyrobertsite

Formula: 
KCaCu5(AsO4)4(H2AsO4)·2H2O
Strunz: 
8.DH.50
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Geminite

Formula: 
Cu(HAsO4)·H2O
Strunz: 
8.CB.30
Hardness: 
3.0 - 3.5
Type Locality: 
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France...

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