Donnayite-(Y) with Calcite

Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec  Canada

Specimen size: 4.5 × 3.7 × 3 cm = 1.77” × 1.46” × 1.18”
Main crystal size: 2 × 1 cm = 0.79” × 0.39”