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Quartz On Malachite On Chrysocolla Psm Azurite

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SMS1040904

Description Tabs

Description
Locality: 
Tenke-Fungurume Area, Kolwezi, Lualaba, DR Congo
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 3.6 × 2.5 cm
Weight: 
21.54gr
Description

An unusual pseudomorph after azurite combined with an epimorphic cast after azurite. Drusy quartz over malachite on chrysocolla pseudomorph after azurite. The original azurite crystal was elongate four sided with small side crystals following the same habit. The epimorph allows one to see how the crystals formed. the overal colour of the specimen is deep ocean green.

Mineral Data
What's on the rock

Quartz

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

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, Rhône, Rhône-Alpes, France...

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Start 08 Apr 18:00
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Shipping Information

Postage Area Price
Europe up to 500 grams
$12
Europe up to 1 kilogram
$16
United States up to 500 grams
$14
United States up to 1 kilogram
$18
Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18

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