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Chrysocolla Psm Azurite

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SKI133446

Chrysocolla Psm Azurite

Description Tabs

Description
Locality: 
Yerington, Lyon County, Nevada, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 8 × 4 cm
Description

A specimen showing pseudomorphs of chrysocolla after azurite. Comes with a handwritten label from the Georg Hauser collection (1905-1960) and a second maschine-typed one from his american swapping partner with a handwritten note "not common".

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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