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Chrysocolla Psm Azurite

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SKI590887

Chrysocolla Psm Azurite

Pseudomorph

Description Tabs

Description
Locality: 
Ray Mine, Pinal County, Arizona, United States of America
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 0.7 × 0.5 cm
Description

A classic specimen from the famous find of chrysocolla pseudomorphs in 1976. The original mineral has never been determined, but they are generally believed to be after azurite or possibly selenite.

Out of my personal collection.

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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...

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