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Allactite

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SHS510810

Allactite

ex Collection Ingemar Johansson (Kopparberg/Sweden)

Description Tabs

Description
Locality: 
Nordmark, Filipstad, Värmland County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3.8 cm
Description

Nice allactite in matrix

Mineral Data
What's on the rock

Allactite

Formula: 
Mn2+7(AsO4)2(OH)8
Strunz: 
8.BE.30
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Moss mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden