Middle Earth Minerals: Tetranatrolite (now called Gonnardite) Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Tetranatrolite (now called Gonnardite), Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada