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Krut'aite Chalcomenite & Clinochalcomenite

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CLB126220

Krut'aite Chalcomenite & Clinochalcomenite

ex coll. Prof. Wotruba, TU Aachen
Rare Mineral

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3 × 2.2 cm
Description

An almost massive krut'aite specimen with blue chalcomenite crystals and a crust of greenish clinochalcomenite (the last not analyzed). Probably more interesting minerals. Selen minerals are very rare.

Mineral Data
What's on the rock

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

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

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