Mineral: Arfvedsonite
Locality: Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Dimensions: 1.7 x 2.5 cm

Description: Doubly-terminated floater of lustrous black arfvedsonite with a spike of aegirine on the top.

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