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Azurite & Zincolivenite

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BSM616606

Azurite & Zincolivenite

ex John Williams Collection

Description Tabs

Description
Locality: 
Puerto Palomas Mines, Sierra de Baza, Granada, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 4.4 × 2.1 cm
Description

An iron stained matrix with a failry rich cover of azurite on  the upper  surface together with numerous sprays of pale green zincolivenite crystals on both the upper and lower surfaces. The main depression is lined with rich lustrous blue microcrystals of azurite and both light and darker green zincolivenite.

This specimen really comes to life when viewed with a microscopeas there is a fairly widespread cover of sparkling colourless microcrystals, possibly of 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

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