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Malachite On Chalcopyrite & Dolomite

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PCZ203213

Malachite On Chalcopyrite & Dolomite

Description Tabs

Description
Locality: 
Llynclys Quarry, Llanyblodwel, Shropshire, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 6.5 × 2.5 cm
Description

Micro-crystals of green malachite on oxidised chalcopyrite which itself is covering dolomite crystals. An interesting and not unattractive specimen from a less frequently offered British location.

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
Peter Crozier Minerals