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Heterogenite & Mottramite

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SKY174542

Heterogenite & Mottramite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.5 × 2.5 cm
Description

Heterogenite, a simple cobalt oxide-hidroxide is associated in this specimen to a very nice green globular mottramite. Heterogenite has a cilindric shape and the species was labeled as R in Gebhard's Tsumeb II book (rare, several occurrences with a few specimens). Phillips collection.

Mineral Data
What's on the rock

Heterogenite

Formula: 
CoO(OH)
Strunz: 
4.FE.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 5.0
Type Locality: 
Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany

Mottramite

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

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