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Azurite Malachite On Cerussite

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GND27938

Azurite Malachite On Cerussite

Classic Locality

Description Tabs

Description
Locality: 
Broken Hill, New South Wales, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.4 × 3.3 cm
Description

A nice old specimen, probably collected sometime between 1890 - 1920 shaped like broccoli, with small azurite crystals scattered over hard botryoidal malachite. The black coating on the malachite is possibly tenorite or a manganese oxide.

The matrix is almost pure massive cerussite. A rather unusual piece that displays best with the help of a stand.

 

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...

Malachite

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

Cerussite

Formula: 
PbCO3
Strunz: 
5.AB.15
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
3.0 - 3.5
Streak: 
White
Type Locality: 
Vicenza Province, Veneto, Italy
Gondwana Minerals