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Natrolite and Microcline, Poudrette Quarry, Mont St-Hilaire, Canada

Cluster of small translucent natrolite crystals with interspersed crystals of microcline and an unidentified non-fluorescent brownish mineral. From the Poudrette quarry, Mont St-Hilaire, Quebec, Canada. Under SW UV the natrolite shows a moderate green response and the microcline fluoresces raspberry red. This specimen measures 9.2 x 5.7 x 5.0 cm and weighs 122 grams.

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