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Cobaltoan Calcite & Malachite

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PDM1077243

Cobaltoan Calcite & Malachite

Description Tabs

Description
Locality: 
Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 7 × 5.1 cm
Weight: 
257.00gr
Description

Superb cobalt-rich calcite of striking fuchsia colour, where the carbonate matrix is completely covered by undamaged lenticular crystals. Lustre is very good and the colour is the best it can be found at the locality. A nice aerial buddle of fibrous malachite is aesthetically placed on it. Under magnification it can be observed that the paragenesis is completed by hundreds of botryoidal clusters of black heterogenite.

Acquired 29/06/1996 to Rini Kahpayana. Ex Gustaaf collection #652, with his handwritten label.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Cobaltoan Calcite

Variety Of: 

Calcite

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

Malachite

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

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