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Malachite & Chrysocolla

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Malachite & Chrysocolla

Description Tabs

Description
Locality: 
Katanga Copper Crescent, Haut-Katanga, DR Congo
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
17 × 9 × 9 cm
Description

Lustrous green malachite crystals on blue-green chrysocolla

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

Chrysocolla

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