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Bieberite & Kröhnkite

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BCK631849

Bieberite & Kröhnkite

Rare Mineral

Description Tabs

Description
Locality: 
Nkana Mine, Kitwe, Kitwe District, Copper Belt Province, Zambia
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.5 × 0.3 cm
Description

You are bidding on two quite large single crystals of bieberite with small blue krohnkite crystals on top. The crystals were originally pink and transparent but have altered somewhat. 

Mineral Data
What's on the rock

Bieberite

Formula: 
CoSO4·7H2O
Strunz: 
7.CB.35
Crystal System: 
Monoclinic
Hardness: 
2.0
Type Locality: 
"Im Lochborn" Copper mine, Bieber, Gelnhausen, Spessart, Hesse, Germany...

Kröhnkite

Formula: 
Na2Cu(SO4)2·2H2O
Strunz: 
7.CC.30
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile

Seller Information

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