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Chalcomenite & Clinochalcomenite On Krut'aite

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CLB532319

Chalcomenite & Clinochalcomenite On Krut'aite

collected by Prof. Wotruba, University of Aachen
Rare Mineral

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.5 × 1.4 cm
Description

Blue chalcomenite and green clinochalcomenite (not pictured)on gray-black krut'aite. Rare selenian minerals.

There seem to be more tiny crystals and microscopic traces of minerals - possibly gold, aragonite, mandarinoite, molybdomenite ...?

Mineral Data
What's on the rock

Chalcomenite

Formula: 
CuSeO3·2H2O
Strunz: 
4.JH.05
Crystal System: 
Orthorhombic
Hardness: 
2.0 - 2.5
Type Locality: 
Cerro de Cacheuta, Sierra de Cacheuta, Mendoza, Argentina

Clinochalcomenite

Formula: 
CuSeO3 · 2H2O
Strunz: 
4
Crystal System: 
Monoclinic
Hardness: 
2
Colour: 
Bluish green
Streak: 
Pale Green
Type Locality: 
Gansu (Ganzu) Province, China

Krut'aite

Formula: 
CuSe2
Strunz: 
2.EB.05a
Hardness: 
4.0
Type Locality: 
Petrovice, Nové Město na Moravě, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic

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