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Malachite On Chrysocolla

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PCZ760561

Malachite On Chrysocolla

Ex Keith Snell Collection

Description Tabs

Description
Locality: 
Bardon Hill Quarry, Coalville, Leicestershire, United Kingdom
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.1 × 1.5 cm
Description

Turquoise coloured chrysocolla with interesting and attrative structures and partially covered with malachite. An internal radial growth can be seen at a few broken growths but rather than detrating from the specimen it adds to te intrest.

Minor: 
Native Copper
Minor: 
Cuprite
Condition
General: 
Good - locality specimen
Main Display: 
Good - some peripheral damage
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

Chrysocolla

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