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Arfvedsonite

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SHS912736

Arfvedsonite

Description Tabs

Description
Locality: 
Norra Kärr, Gränna, Jönköping County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2.3 × 0.8 cm
Description

Arfvedsonite in matrix

Mineral Data
What's on the rock

Arfvedsonite

Formula: 
[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Strunz: 
9.DE.25
Hardness: 
5.0 - 6.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland