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Diopside in Calcite, Fort Ann, New York

Grains of brightly fluorescent diopside with minor non-fluorescent pyrite in a calcite groundmass, from the Rt. 4 Roadcut, Fort Ann, Washington Co., New York. Under short wave UV, the diopside fluoresces bright blue/white. This specimen measures 38 x 33 x 30 mm.

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