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Nantokite Calcite & Tenorite On Native Copper

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PJM221546

Nantokite Calcite & Tenorite On Native Copper

Description Tabs

Description
Locality: 
Selwyn Mine, Selwyn, Cloncurry Shire, Queensland, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.5 × 2 cm
Description

 A branching cluster of native copper crystals is coated with black tenorite over which crude green crystals of nantokite and small white calcite crystals

Mineral Data
What's on the rock

Nantokite

Formula: 
CuCl
Strunz: 
3.AA.05
Crystal System: 
Isometric
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Carmen Bajo Mine, Nantoko, Copiapó Province, Atacama Region, Chile

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Tenorite

Formula: 
CuO
Strunz: 
4.AB.10
Crystal System: 
Monoclinic
Hardness: 
3.5
Streak: 
Black
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Copper

Formula: 
Cu
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0
Earthstones Australia

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