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Chalcomenite Ahlfeldite & Berzelianite

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SCH27823

Chalcomenite Ahlfeldite & Berzelianite

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2.1 × 1.9 cm
Description

Electric blue chalcomenite microcrystals with a thin crust of pale lime green ahlfeldite. the matrix is massive berzelianite and has numerous vugs where are located well-formed and larger chalcomenite crystals.

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

Ahlfeldite

Formula: 
(Ni,Co)SeO3·2H2O
Strunz: 
4.JH.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Type Locality: 
Virgen de Surumi mine (Pacajake mine; Pakajake mine), Pakajake Canyon (Pacajake Canyon), Chayanta Province, Potosí Department, Bolivia

Berzelianite

Formula: 
Cu2Se
Strunz: 
2.BA.20
Crystal System: 
Isometric
Hardness: 
2.0
Streak: 
Shining
Type Locality: 
Skrikerum Mine (Skrickerum Mine), Valdemarsvik, Östergötland, Sweden
schani

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