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Naumannite Adamite & Wulfenite

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JYJ872010

Naumannite Adamite & Wulfenite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.4 × 3.3 cm
Description

Grey metallic naumannite with chalcocite and white to colourless adamite crystals. SEM-EDS & XRD confirmed. 

Comes with a colour printed analysis. 

 

Mineral Data
What's on the rock

Naumannite

Formula: 
Ag2Se
Strunz: 
2.BA.55
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
black
Type Locality: 
Tilkerode (Abberode), Harz, Saxony-Anhalt, Germany

Adamite

Formula: 
Zn2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
white
Type Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile

Wulfenite

Formula: 
Pb(MoO4)
Strunz: 
7.GA.05
Crystal System: 
Tetragonal
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria