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Azurite Zincolivenite & Olivenite

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BSM759176

Azurite Zincolivenite & Olivenite

ex John Williams Collection

Description Tabs

Description
Locality: 
Puerto Palomas Mines, Sierra de Baza, Granada, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 5.5 × 2.3 cm
Description

This is a rich specimen with a wide variety of minerals present. The most obvious is azurite which forms minute intergrown bladed crystals giving rise to small circular patches alongside dark green malachite and possibly some rosasite. Sprays of transparent light green to almost colourless olivenite occur together with clusters of dark olive green olivenite. There are some minute bright apple green crystals which could be cuproadamite but not tested. The location is also known for duftite, calcite and smithsonite.

Previous labels supplied (not photographed)
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...

Zincolivenite

Formula: 
CuZn(AsO4)(OH)
Strunz: 
8.BB.30
Hardness: 
3.5 - 0.0
Streak: 
White
Type Locality: 
Agios Konstantinos [St Constantine] (Kamariza), Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

Olivenite

Formula: 
Cu2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Seller Information

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