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Arsenopyrite Var Danalite

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SHS627349

Arsenopyrite Var Danalite

Description Tabs

Description
Locality: 
Bremsåsen Mine, Nedre Eiker, Viken, Norway
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1.2 cm
Description

Nice danalite in matrix

Mineral Data
What's on the rock

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Danalite

Formula: 
Fe2+4(Be3Si3O12)S
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Type Locality: 
Rockport, Essex Co., Massachusetts, USA