Natrolite : Na2Al2Si3O10·2H2O
As recorded:
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
4.3cm x 0.7cm x 0.6cm
Photo added to mindat.org
“4.3 x .7 x .6 cm. A fine natrolite crystal from Mont Saint-Hilaire with slight matrix inclusions in the termination.
”
Robert Lavinsky - 28th July 2010
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