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Malachite On Cobaltoan Calcite

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SMS1157705

Description Tabs

Description
Locality: 
Kakanda, Lubudi, Lualaba, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 4.3 × 2.7 cm
Weight: 
40.08gr
Description

The specimen has malachite on cobaltoan calcite. The calcite has a thick layer with small crystals of malachite on the surface. The specimen is naturally very colourfull with the exposed bright pink edges of the cobaltoan calcite and the rich green colour of the malachite.

Mineral Data
What's on the rock

Malachite

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

Cobaltoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Co)CO3
Hardness: 
0.0

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