| 10889: Gypsum and Halite - $14 West shore of Great Salt Lake, Utah Cabinet - 12.8 x 2.2 x 1.5 cm 23 grams Fluorescent (LW/SW) Specimen status: Available Send an email with specimen number to order A columnar crystal cluster (formed
over a tree branch or tumbleweed?) composed mostly of
gypsum with minor halite. White fluorescence under both
longwave UV (blacklight) and shortwave UV.
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