Check the listing for details. Large Phosphorescent Willemite Specimen 2 Lbs 11 Oz. Condition: New. Listed at 72.99 USD. This Willemite specimen displays bright green fluorescence under shortwave UV (254 nm, pictures 1 and 2) and longwave UV (365 nm, picture 3). It is also very Phosphorescent (glows for several seconds after being exposed to shortwave UV, picture 4). It also contains some fluorescent calcite (glows orange under shortwave). Weight: 43.69 ounces (2 lbs 11.69 oz) Origin: Franklin, New Jersey
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