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1 item @ $25.00   30:00
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Arfvedsonite

#58062
SOLD
Arfvedsonite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada - 58062
Arfvedsonite from Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada - 58062

Arfvedsonite

#58062
Availability
Sold
Size
4 x 2.5 x 1.5 cm - Miniature 
Formula
NaNa2(Fe2+4Fe3+)Si8O22(OH)2 (RRUFF)
Locality
Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada

A single large crystal with very nice termination.

Arfvedsonite

Formula
NaNa2(Fe2+4Fe3+)Si8O22(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Radial, Fibrous, Stellate 
Cleavage
Perfect, Imperfect, None 
Luster
Vitreous (Glassy) 
Color
black, grayish green, bluish gray 
Streak
bluish gray 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5-6 

Data courtesy of Webmineral.

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