Gemmy crystals of brick red Willemite, which fluoresces green under 254 Shortwave UV light, with a cap of of non-fluorescent Franklinite interspersed with Calcite (fluoresces red) and create a striking small cabinet specimen. Collected from the then-active, legendary Franklin Mine in Franklin NJ, one of the most unique geological assemblages on the planet. 3.75" x 1.75" x 2.5", 1 lbs