| 00640: Gypsum - $40 Tully, Onondaga County, New York Cabinet - 9.8 x 7.7 x 1.7 cm 28 grams Fluorescent (SW) Ex Ferdinand D'Esposo Specimen status: Available Send an email with specimen number to order A thin matrix plate bears abundant,
twinned gypsum crystals reaching 1.7 cm. These crystals
are dark at the base and become colorless near the
terminations. All are complete.Weak fluorescence is seen
under shortwave UV. Ex Ferdinand D'Esposo; his label
accompanies the specimen.
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