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Krut'aite Penroseite & Chalcomenite

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SMM605237

Krut'aite Penroseite & Chalcomenite

Rare Mineral

Description Tabs

Description
Locality: 
Hal Lake Selenium Occurence #1, Beaverlodge Lake, Saskatchewan, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 0.8 cm
Description

On this sample are visible some face of some crystals of the rare selenium mineral  krut'aite on the same side there are small glassy blue chalcomenite crystals. Steel gray metallic massive penroseite is the component of the matrix. 

Boxed with Label
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

Penroseite

Formula: 
(Ni,Co,Cu)Se2
Strunz: 
2.EB.05a
Hardness: 
2.5 - 3.0
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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