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Kaatialaite Claudetite Arsenolite & Native Arsenic

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CZM121530

Kaatialaite Claudetite Arsenolite & Native Arsenic

Rare Mineral

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2.5 × 2 cm
Description

Altered arsenic ovegrown by isolated milky white or bluish kaatialaite consists of small needle crystals well observable on photos. Some small claudetite crystals visible on the specimen. One on the photo have proustite inclusion.

Mineral Data
What's on the rock

Kaatialaite

Formula: 
Fe(H2AsO4)3·5H2O
Strunz: 
8.CC.10
Crystal System: 
Monoclinic
Hardness: 
0.0
Type Locality: 
Kaatiala pegmatite, Kuortane, Western and Inner Finland Region, Finland

Claudetite

Formula: 
As2O3
Strunz: 
4.CB.45
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
São Domingos Mine, Corte do Pinto, Mértola, Beja District, Portugal

Arsenolite

Formula: 
As2O3
Strunz: 
4.CB.50
Crystal System: 
Isometric
Hardness: 
1.5
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Arsenic

Formula: 
As
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.5
Streak: 
Grey

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