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Heterogenite With Malachite

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PDM837385

Heterogenite With Malachite

Classic Locality

Description Tabs

Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 0.8 × 0.8 cm
Description

Very attractive and uncommon stalactite of black botryoidal multi-layered heterogenite on a malachite core. It is crystallized all-around and the surface is also partially occupied by some sharp and well defined primary malachite crystals.

Collected at the Kambove mine by René Virlet, a Belgian colonist in Congo who travel back definitively to Belgium in 1968.

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

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