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Tsumcorite Wulfenite & Dolomite On Tennantite

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CLB180100

Tsumcorite Wulfenite & Dolomite On Tennantite

ex collection A. & Ch. Köstenbauer
Type Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.4 × 7.4 × 5 cm
Description

Thousands of little yellow tsumcorite (type locality) crystals cover sharp tennantite crystals, combined with lustrous dolomite rhombs and a few loustrous wulfenite crystals. All on a matrix of metallic black tennantite, mixed with dolomite. A very rare and a beautiful combination, surpassing, I think, anything comparable on Mindat.

Mineral Data
What's on the rock

Tsumcorite

Formula: 
Pb(Zn,Fe3+)2(AsO4)2·2(H2O,OH)
Strunz: 
8.CG.15
Crystal System: 
Monoclinic
Hardness: 
4.5
Streak: 
Yellow
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Tennantite

Formula: 
Cu6[Cu4(Fe,Zn)2]As4S13
Strunz: 
2.GB.05
Crystal System: 
Isometric
Hardness: 
3.0 - 4.5
Type Locality: 
Cornwall, England, UK

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