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Heterogenite & Malachite

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TBM1139083

Description Tabs

Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
4 × 9 × 7 cm
Largest Crystal: 
0.40cm
Weight: 
282.00gr
Description

Very nice cluster of black Heterogenite crystals up to 4 mm with Malachite crystals in rounded aggregates up to 12 mm; very aesthetic and particular sample

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

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0