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Malachite On Cobaltoan Calcite

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WND789985

Malachite On Cobaltoan Calcite

Classic Locality

Description Tabs

Description
Locality: 
Mashamba West Mine, Kolwezi, Lualaba, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 2.8 × 2.6 cm
Description

Some green puffballs of malachite contrastful perched on a sod of intense purple crystals of cobaltocalcite. A fine and colourful specimen in good shape. Minor imperfection.

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
Wendel Minerals

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