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Brochantite & Calcite

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Brochantite & Calcite

Description Tabs

Description
Locality: 
Kombat Mine, Grootfontein, Otjozondjupa Region, Namibia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 1.5 × 2.5 cm
Description

A very fine double sided bronchantite specimen, with some small calcite along side. The rear of the specimen also has a frosting of fine white calcite (?).

Exceptional little miniature from Kombat.

Mineral Data
What's on the rock

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...

Calcite

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