Sphalerite and Fluorescent Calcite Specimen from Trepça Mines, Kosovo Granite Pyrite after pyrrhotite (psuedomorph)

Pyrite after pyrrhotite (psuedomorph)

Some lots may have an orange piece or two but most have blue/yellow/white fluorescence

UV Fluorescence

From Shengus

the crystal appears colorless to very pale pink/light yellow

Sphalerite and Fluorescent Calcite Specimen from Trepça Mines, Kosovo Granite Pyrite after pyrrhotite (psuedomorph)This is a beautiful, natural crystal cluster with a base of sphalerite with high Mn calcite. From the famous Trepa Mine complex in the Trepa Valley in Kosovo. Size: 77 x 54 x 40 mm. 158 grams. This piece also glows beautiful mangano calcite red orange under long wave ultraviolet light with a wavelength of 365 nanometers. PLEASE NOTE: If you have a 395 nm light or a black light, it WILL NOT make this rock glow. A 365 nm long wave ultraviolet light was