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Gersdorffite & Annabergite

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KAT735212

Gersdorffite & Annabergite

Description Tabs

Description
Locality: 
Bou Azzer Mine, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.4 × 6.1 × 3.7 cm
Description

very large, lustrous, sharp, lead-grey gersdorffite crystals combined with green annabergite and white calcite on a gersdorffite matrix

Mineral Data
What's on the rock

Gersdorffite

Formula: 
NiAsS
Strunz: 
2.EB.25
Crystal System: 
Isometric
Hardness: 
5.5
Type Locality: 
Zinkwand, Obertalbach valley, Schladminger Tauern, Schladming, Styria, Austria

Annabergite

Formula: 
Ni3(AsO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.5
Type Locality: 
Teichgräber Flacher vein, Teichgräber deep adit, Kippenhain Mine (Kippenhayn Mine), Schreckenberg, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany

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