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Chrysocolla With Cornetite

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CYF590685

Chrysocolla With Cornetite

Description Tabs

Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 6 × 3 cm
Description

A stunning example of turquoise coloured chrysocolla with cornetite from the Congo.  Great display specimen with vibrant colour.

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

Cornetite

Formula: 
Cu3(PO4)(OH)3
Strunz: 
8.BE.15
Hardness: 
4.5
Type Locality: 
L'Etoile du Congo Mine (Star of the Congo Mine; Kalukuluku Mine), Lubumbashi (Elizabethville), Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)...