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Malachite Azurite & Smithsonite

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GND45827

Malachite Azurite & Smithsonite

Classic Locality

Description Tabs

Description
Locality: 
Block 14 Opencut, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 8.2 × 3 cm
Description

An nice looking recently collected Broken Hill specimen reminicent of some of the classic old time pieces.

Small dark blue azurite crystals are nestled amongst thin patches of  velvety malachite, that form an alteration on cuprite. There also nice areas of yellow brown drusy smithsonite crystals. There is some associated cerussite in the matrix also. 

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

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...

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White
Gondwana Minerals