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Native Copper Connellite & Paratacamite

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PJM38072

Native Copper Connellite & Paratacamite

Description Tabs

Description
Locality: 
Kintore Open Cut, Broken Hill, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
0.7 × 3.8 × 3.5 cm
Description

A thin slab of garnet sandstone typical of broken Hill is coated with a creamy colour mixture of smithsonite & cerussite on to which has grown fernlike sprays of native copper.

The native copper has altered to cuprite and been further altered on the surface to a mixture of paratacamite and malachite.

Scattered across the specimens main face are crusts and micro tuffed balls of connellite and some minor linarite. This specimen is a visual treat under magnification

Mineral Data
What's on the rock

Copper

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

Connellite

Formula: 
Cu19(SO4)(OH)32Cl4·3H2O
Strunz: 
3.DA.25
Crystal System: 
Hexagonal
Hardness: 
3.0
Type Locality: 
Wheal Providence, Providence Mines, Carbis Bay, St Ives, St Ives District, Cornwall, England, UK

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
Earthstones Australia

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