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Umangite & Klockmannite

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HCH79950

Umangite & Klockmannite

Classic Locality

Description Tabs

Description
Locality: 
Zorge, Bad Sachsa, Göttingen, Lower Saxony, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 2 cm
Description

intergrown grains of these rare selenides in calcite

Mineral Data
What's on the rock

Umangite

Formula: 
Cu3Se2
Strunz: 
2.BA.25
Crystal System: 
Tetragonal
Hardness: 
3.0
Streak: 
Black
Type Locality: 
Trogtal Quarries, Lautenthal, Harz, Lower Saxony, Germany

Klockmannite

Formula: 
CuSe
Strunz: 
2.CA.05b
Hardness: 
2.0 - 2.5
Type Locality: 
Las Asperezas mine (Sarmiento deposit; Veta Sarmiento), Sierra de Cacho, Villa Castelli, General Lamadrid department, La Rioja, Argentina

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