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Chalcomenite

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JYJ774015

Chalcomenite

Description Tabs

Description
Locality: 
Virgen de Surumi Mine, Pakajake Canyon, Chayanta Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.4 × 1.6 cm
Description

Beautiful intense blue chalcomenite associated with minor olsacherite on limonitic matrix that hosts a primary rich selenide lens with clausthalite, naumannite and penroseite. The primary ore from hosts pretty large naumannite inclusions as can be seen in the SEM image. 

 

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