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Arfvedsonite

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SYM774976

Arfvedsonite

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 0.8 cm
Description

Terminated arfvedsonite crsytal from MSH.

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