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Malachite & Azurite Psm Gypsum

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LGM818970

Malachite & Azurite Psm Gypsum

Ex Gunnar Färber, Samswegen, Germany
Pseudomorph

Description Tabs

Description
Locality: 
St George Apex Mine, Beaver Dam Mountains, Washington County, Utah, United States of America
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.4 × 1 cm
Largest Crystal: 
2.90cm
Weight: 
5.70gr
Description

An extremely rare double pseudomorph: The hexagonal-shaped, hollow gypsum crystal was replaced by azurite first and subsequently by malachite.

 

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...

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Seller Information

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Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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