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Calcite & Duftite

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MGR185524

Calcite & Duftite

Classic Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Cabinet (10-18 cm)
Size: 
12.3 × 10.5 × 7.8 cm
Description

Grey to white inter grown crystals with uncountable sharp tiny steps. One very exposed crystal in the centre. There is also a red layer of hematite and some small zones with green duftite. Faces are glossy, only some are dull. In good condition damage-wise. Fine contrast and good assemble!

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Duftite

Formula: 
PbCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia