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Mottramite Psm Wulfenite

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CR52423

Mottramite Psm Wulfenite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Museum (18cm plus)
Size: 
20 × 12 × 10 cm
Largest Crystal: 
2.00cm
Description

The  green mottramite on this piece has pseudomorphed a nest of sharp wulfenite crystals, up to 2 cm in length.

Calcite rhombs on the back side accent some of the mottramite pseudomorphs.

 

Mineral Data
What's on the rock

Mottramite

Formula: 
PbCu(VO4)(OH)
Strunz: 
8.BH.40
Hardness: 
3.0 - 3.5
Type Locality: 
Mottram St Andrew, Cheshire, England, UK

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