Fluorescent Calcite with Clear Quartz Crystals & Pyrite from Trepca Mine, Kosovo Rainbow iridescent There will be some crystals

There will be some crystals that don’t have fluorescent inclusions or may have damaged terminations

Size: 90 x 68 x 64 mm

but this one reacts much better to short wave UV

Size: 192 x 140 x 17 mm

Fluorescent Calcite with Clear Quartz Crystals & Pyrite from Trepca Mine, Kosovo Rainbow iridescent There will be some crystalsThis is a beautiful, natural crystal cluster with high Mn calcite, lustrous clear quartz crystals, and minor pyrite. From the famous Trepa Mine complex in the Trepa Valley in Kosovo. Size: 87 x 85 x 60 mm. 258 grams. This piece glows beautiful mangano calcite red orange under long wave ultraviolet light with a wavelength of 365 nanometers. PLEASE NOTE: A 390 nm light or a black light may not make this rock glow. A 365 nm long wave ultraviolet light