Mineral: Donnayite-(Y)
Locality: Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Dimensions: 4 x 3 x 2 cm / main crystal: 1.8 cm

Description: Mass: 11 g MIM number:1782 Hexagonal barrel shaped crystal lying on a thin calcite matrix. The crystal is partially covered with what appears to be of micro-crystalline pyrite. Another small donnayite crystal lies near the edge of the matrix. Photographer: FMI / James Elliott Ex collection Gilles Haineault (Canada)

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