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Azurite & Malachite On Dolomite & Calcite

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BMM944728

Azurite & Malachite On Dolomite & Calcite

Description Tabs

Description
Locality: 
Brixlegg, Kufstein District, Tyrol, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 3.6 × 2.4 cm
Description

This eye-catcher comes from Brixlegg which is famous for silver and copper minerals like azurite or malachite. It is a very showy piece with deep blue azurite crystals and intense green malchite cover small calcite and dolomite crystals on matrix. The piece grew as a floater specimen, crystallized all around and particularly intensely colored on one side. Very attractive from this locality!

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White