Fluorescent Calcite Specimen with Galena & Sphalerite rose quartz A complex set of geologic

A complex set of geologic conditions brought these minerals together to form this beautiful rock

Measures 110 x 88 x 66 mm

Size: 50 x 30 x 23 mm

Size: 90 x 52 x 33 mm

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

Fluorescent Calcite Specimen with Galena & Sphalerite rose quartz A complex set of geologicThis 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