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Olsacherite & Chalcomenite

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SER1040627

Olsacherite & Chalcomenite

ex Americo Urbinati collection

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Description
Locality: 
Baccu Locci Mine, Villaputzu, Cagliari Province, Sardinia, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.6 × 1.5 cm
Description

several groups of colourless olsacherite crystals on matrix with electric blue chalcomenite

Mineral Data
What's on the rock

Olsacherite

Formula: 
Pb2(SeO4)(SO4)
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Type Locality: 
Virgen de Surumi mine (Pacajake mine; Pakajake mine), Pakajake Canyon (Pacajake Canyon), Chayanta Province, Potosí Department, Bolivia

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

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Start 30 Apr 18:00
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