UV Reactive New Jersey Willemite, Calcite and Franklinite Specimen

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Fluorescent green and orange (under UV) willemite, calcite and franklinite specimen from Sterling Hill Mine, Ogdensburg, Sussex County, New Jersey.

Willemite fluoresces green and calcite pink/orange/red. Both 365 nm long wave and 254 nm short wave cause fluorescence with short wave brighter and more orange than pink.
There is phosphorescent afterglow with 254 nm short wave UV only.

PLEASE NOTE: A 365 nm long wave ultraviolet light was used in the fluorescent photos. A standard black light generally will not make minerals fluoresce (glow). The afterglow in this piece only happens with 254 nm Short wave UV.

Please let us know if you would like additional information on mineral fluorescence and ultraviolet lights. 🥰. We have two different models of 365 nm long wave fluorescent flashlights available.

72 x 40 x 22 mm. 74 grams.

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