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Malachite On Quartz & Chrysocolla Psm Azurite

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SMS1024564

Malachite On Quartz & Chrysocolla Psm Azurite

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Description Tabs

Description
Locality: 
Tenke Deposit, Tenke-Fungurume, Kolwezi, Lualaba, DR Congo
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 0.8 × 0.7 cm
Weight: 
0.58gr
Description

The specimen has tiny ball clusters of malachite on drusy quartz covering three elongate slender crystals that are chrysocolla psm after azurite. There are also tiny blurred black masses underneath the quartz that are likely heterogenite.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Chrysocolla

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

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...

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