Tetranatrolite, Serandite, Aegirine
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
This specimen is labeled as tetranatrolite, at one time was considered a valid species and a member of the Zeolite Group (like natrolite). The type specimen was from the Poudrette Quarry at Mont Saint-Hilaire, Canada, but the species was discredited in 1999, and now the material is thought to be either paranatrolite or gonnardite which are both ...
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