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Schulenbergite & Brochantite On Native Copper

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PJM85739

Schulenbergite & Brochantite On Native Copper

Ex J & S Mommers Collection.

Description Tabs

Description
Locality: 
Blackwoods Opencut, Broken Hill, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.4 cm
Description

A vughy matrix is lined with fine smithsonite scalahedrons on which a spray of branching native copper crystals has been laid. The copper has altered to cuprite and coated with dark blue green schulenbergite and brighter green brochantite crystals

Mineral Data
What's on the rock

Schulenbergite

Formula: 
(Cu,Zn)7(SO4,CO3)2(OH)10·3H2O
Strunz: 
7.DD.80
Crystal System: 
Trigonal
Hardness: 
2.0
Type Locality: 
Glücksrad Mine, Oberschulenberg, Bockswies veins, Clausthal-Zellerfeld, Harz, Lower Saxony, Germany

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Copper

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

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