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Tangdanite & Erythrite

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HEF1040205

Tangdanite & Erythrite

Description Tabs

Description
Locality: 
Stocker Adit, Silberberg, Brixlegg, Kufstein, Tyrol, Austria
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.4 × 1.1 cm
Description

Green crytsals of tangdanite with erythrite-crytsals on matrix

Mineral Data
What's on the rock

Tangdanite

Formula: 
Ca2Cu9(AsO4)4(SO4)0.5(OH)9·9H2O
Hardness: 
0.0
Type Locality: 
Tangdan Mine, Dongchuan Cu ore field, Dongchuan District, Kunming Prefecture, Yunnan Province, China

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

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