Fluorescent Calcite Specimen with Galena & Sphalerite rose quartz This beautiful blue rock is

This beautiful blue rock is lapis lazuli (today often called lapis)

In this instance

have double terminations that show extra terminations

Small UV reactive red spinel on matrix

Size: 90 x 52 x 33 mm

Fluorescent Calcite Specimen with Galena & Sphalerite rose quartz This beautiful blue rock isThis is a beautifully complicated, natural crystal cluster with high Mn calcite, minor galena & sphalerite. From the famous Trepa Mine complex in the Trepa Valley in Kosovo. 57 x 55 x 26 mm. 82 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 will not make this rock glow. A 365 nm long wave ultraviolet light was used in the