Large cluster of tan-colored aragonite with overgrowth of bright yellow sulfur crystals up to 1 cm on edge. Fluoresces and phosphoresces under UV illumination. Fully crystallized both sides. Originally acquired from E. Windisch in 1966. Willemite and Franklinite in Calcite , Sterling Hill Mine, Ogdensburg, New Jersey.
Calcite fluoresces orange, willemite fluoresces green under UV illumination.
Villedieu Twp., Quebec, Canada. Doubly-terminated brown zircon crystal. Very sharp and well formed. Fluoresces under UV illumination. Above is a listing of fluorescent minerals currently available, but not pictured on this web site.