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Malachite Psm Cuprite

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CYF583565

Malachite Psm Cuprite

Description Tabs

Description
Locality: 
Chessy-les-Mines, Villefranche, Rhône, Auvergne-Rhône-Alpes, France
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.8 × 1.8 cm
Description

This is one fine specimen!

Malachite pseudomorphing cuprite from France.  This piece was a part of Harry Robersons 1968 winning National thumbnail collection... A perfect octahedron with slight skeletal growth.

Measures 18mm on the diagonal, point to point.

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

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0