Fluorite Sphere with Phosphorescent Coating
Nathan Renfro, July 31, 2015
A sphere with unusual phosphorescence is seen in the Carlsbad laboratory.
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Spring 1991 G&G Lab Notes
, March 1, 1991
This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
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