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Kröhnkite

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SKY669493

Kröhnkite

Rare Mineral

Description Tabs

Description
Locality: 
La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.6 cm
Description

Outstanding specimen of rare krohnkite, in gemmy blue green crystals in a contrasting brown matrix. Krohnkite is a Na-Cu-sulphate present in some arid mines of the world. Very nice under the microscope !

Mineral Data
What's on the rock

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

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