Wollastonite, fluorescing orange, in Calcite that glows deep purple-red with minor black Franklinite. Photographed under under 254 Shortwave UV light. Collected from the then-active, legendary Sterling Hill Mine in Ogdensburg, New Jersey. One of the most unique geological assemblages on the planet. 3.5" x 1.5" x 2.5", 6.8 oz.