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Malachite Psm Azurite

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BMM672244

Malachite Psm Azurite

Description Tabs

Description
Locality: 
Milpillas Mine, Cuitaca, Santa Cruz Municipality, Sonora, Mexico
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 2.2 cm
Description

A 5 cm long single crystal shows the shape of the original azurites fully replaced by rich green malachite. All around crystallized, at the bottom there is still some azurite. Fine textured velvet luster and beautiful crystal shape. Good specimen from the now depleted finds at Milpillas. Undamaged.

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...