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Nantokite & Paratacamite On Native Copper

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PJM88266

Nantokite & Paratacamite On Native Copper

Ex J & S Mommers Collection.

Description Tabs

Description
Locality: 
Mount Isa, Mount Isa City Shire, Queensland, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.4 × 1.3 cm
Description

Pale bluish green nantokite silky crystals combined with dark green paratacamite crystals to give this fine crystallised native copper specimen an interesting and appearing set of clothes.

Uncoated native copper is exposed at the bottom of the branch crystal group and has a deep rich brown colour.

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

Paratacamite

Formula: 
Cu3(Cu,Zn)(OH)6Cl2
Strunz: 
3.DA.10c
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
Green
Type Locality: 
Generosa Mine, Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile

Copper

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

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