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Malachite & Chrysocolla

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PCZ762817

Malachite & Chrysocolla

Description Tabs

Description
Locality: 
Higher Roughton Gill, Caldbeck, Cumbria, United Kingdom
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.7 × 2.9 cm
Description

Acicular malachite crystals on a rich blue bed of chrysocolla.  A good locality example.

Condition
General: 
Locality Specimen
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
Peter Crozier Minerals