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Phosphorescent Willemite 1 Lb 10 Oz LW/SW Fluorescent Franklin, New Jersey:
$47.99
This Willemite specimen is phosphorescent when exposed to shortwave UV (254 nm, picture 3). It also displays bright green fluorescence under shortwave (picture 1) and longwave UV (365 nm, picture 2).
Weight: 26.58 ounces (1 lb 10.58 ounces)
Origin: Franklin, New Jersey
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