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Azurite On Chalcocite

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PDM728203

Azurite On Chalcocite

Classic Locality

Description Tabs

Description
Locality: 
Shangulowé Mine, Kambove, Lualaba, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 2.7 × 1.8 cm
Description

Block of grey chalcocite altered to green malachite with some cavities richly covered by crystallized azurite of intense blue colour, with well-defined faces and curved edges. Good size crystals for the Shangulowé deposit.

Specimen # from the collection of Eudore Toussaint, a Belgian Chemical Engineer in the D.R.Congo from 1948 to 1971.

It comes with the original old wood socle from the collection.

Mineral Data
What's on the rock

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...

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0

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