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Galena & Dolomite

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PJM98065

Galena & Dolomite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 2.5 × 2.2 cm
Description

Numerous sharp crystals of matte-black, octahedral galena to 1.2 cm in length are nestled in a vug of massive galena. For a color contrast there are a few crystals of ivory colored dolomite to accent them. Octahedral crystals of galena from Tsumeb are particularly rare though for odd reasons ANY galena in crystallized form is extremely uncommon from this mine despite its overall production tonnage of galena ore.

Mineral Data
What's on the rock

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Dolomite

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

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