| Country/Region of Manufacture | United States |
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Check the listing for details. Fluorescent Willemite & Calcite Slab (end cut) - Franklin NJ!. Listed at 195.00 USD. WILLEMITE, CALCITE & FRANKLINITE: Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. The Willemite is pinkish in white light, fluorescing bright green in SWUV; Calcite is white in white light, fluorescing red-orange in SWUV; and Franklinite is the dark gray crystals.