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Malachite Psm Azurite On Cobaltoan Calcite

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SMS1055373

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: 
Cabinet (10-18 cm)
Size: 
7.2 × 11.8 × 4.4 cm
Weight: 
374.12gr
Description

The specimen has a deposit of long bladed crystals of malachite psm azurite on crystalline layer of pale pink cobaltoan calcite. The original azurite crystals were long and delicately bladed like swords. The calcite is made up of small sharp crisply angled scalene crystals. This is from recent production.

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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