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Bohdanowiczite Umangite & Clausthalite

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MNR630551

Bohdanowiczite Umangite & Clausthalite

Classic Locality

Description Tabs

Description
Locality: 
Zálesí, Javorník, Jeseník, Olomouc Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.2 × 1.3 cm
Description

Accumulations of purple-red colored silver selenide bohdanowiczite along with silver grey clausthalite. There is present also another selenide umangite (dark black/blue iridescent) (picture 3).

Mineral Data
What's on the rock

Bohdanowiczite

Formula: 
AgBiSe2
Strunz: 
2.JA.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 3.5
Type Locality: 
Kletno, Kłodzko District, Lower Silesia (Dolnośląskie), Poland

Umangite

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

Clausthalite

Formula: 
PbSe
Strunz: 
2.CD.10
Hardness: 
2.5 - 3.0
Type Locality: 
St Lorenz Mine, Burgstatt veins, Clausthal-Zellerfeld, Harz, Lower Saxony, Germany
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