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Chrysocolla Psm Malachite Psm Azurite

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TWH593955

Chrysocolla Psm Malachite Psm Azurite

Pseudomorph

Description Tabs

Description
Locality: 
Lupoto Mine, Kakumba, Kipushi, Haut-Katanga, DR Congo
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 5.5 × 3 cm
Description

needles of chrysocolla crystals pseudomorphed after malachite which replaced once azurite on gossan matrix.

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

Malachite

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

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...
JohnTu's Attic

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