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Malachite On Chrysocolla Psm Azurite

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SMS1088344

Description Tabs

Description
Locality: 
Lupoto Mine, Kakumba, Kipushi, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.2 × 4.5 × 2.9 cm
Weight: 
11.38gr
Description

The specimen consists of a small radial spray of bladed crystals of chrysocolla pseudomorph after azurite. The largest crystal is 2.9cm by 1.8cm by 0.5cm. The bladed habit of the crystals is what is impressive along with the turquoise colour of the chrysocolla. There is a thin crust of chrysocolla firstly and then a layer of small tubercles of chrysocolla growing upwards. This specimen is from the initial discoveries.

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

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, RhĂ´ne, RhĂ´ne-Alpes, France...

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Start 11 Dec 18:00
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Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18

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