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Malachite Psm Azurite On Cobaltoan Calcite

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SMS1069474

Malachite Psm Azurite On Cobaltoan Calcite

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Description Tabs

Description
Locality: 
Mashamba West Mine, Kolwezi, Lualaba, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.6 × 1.5 cm
Weight: 
7.99gr
Description

The main impact from this specimen is the cobaltoan pink colour with the malachite green. The pink calcite is made up of tiny pointed crystals. The malachite pseudomorphs retain the habits of the original azurite crystals. The original crystals were elongate prismatic bladed swords and shorter more typical prismatic bladed crystals. Some of the psm crystals are not complete.

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

Azurite

Formula: 
Cu3(CO3)2(OH)2
Strunz: 
5.BA.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Chessy copper mines, Chessy-les-Mines, Le Bois d'Oingt, Rhône, Rhône-Alpes, France...

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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