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Azurite With Bayldonite & Malachite

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QRI642635

Azurite With Bayldonite & Malachite

Former collection Burger
Classic Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.8 × 3.9 cm
Largest Crystal: 
0.40cm
Weight: 
149.00gr
Description

A bright, colorful miniature consisting of massive bayldonite including a beautiful drusy of crystallised azurite. Bayldonite is vivid apple green, and the azurite drusy is perfectly nested within. A dozen azurite crystals are there, well crystallised and with a good lustre. On one corner there is a nice velvety malachite crystal, which partially pseudomorphs some azurite and beautifully stands above the group like a little tower.

Very aesthetic, in excellent conditions. Former collection Burger (Switzerland). Pre-1950s specimen, labeled in modern times.

Mineral Data
What's on the rock

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...

Bayldonite

Formula: 
PbCu3(AsO4)2(OH)2
Strunz: 
8.BH.45
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Penberthy Croft Mine, St Hilary, Mount's Bay District, Cornwall, England, UK...

Malachite

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

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