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Kröhnkite Metavoltine & Tamarugite

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CLB574798

Kröhnkite Metavoltine & Tamarugite

ex collection Udo Hörig
Rare Mineral

Description Tabs

Description
Locality: 
La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta Region, Chile
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6.4 × 3.2 cm
Description

Large specimen of rare blue kröhnkite, colorless tamarugite crystals and tiny, brown metavoltine on matrix, found by Udo Hörig.

Kröhnkite (more than 70% of the material) on all sides of the specimen.

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

Metavoltine

Formula: 
Na6K2FeFe6(SO4)12O2·18H2O
Strunz: 
7.DF.35
Hardness: 
2.5
Type Locality: 
Zagh Mine (Tangeh Zagh mine; Madeni Zakh), Haji Abad town, Bandar Abbas (Bandar-e Abbas), Bandar-Abbas County, Hormozgan Province, Iran

Tamarugite

Formula: 
NaAl(SO4)2·6H2O
Strunz: 
7.CC.10
Hardness: 
3.0
Type Locality: 
Cerros Pintados ("Cerro Pintados"), Pampa del Tamarugal, El Tamarugal Province, Tarapacá Region, Chile...

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