This striking specimen features UV-active calcite that glows pink under UV light, growing on super lustrous, black, and perfectly terminated sphalerite crystals. The dramatic contrast between the glowing calcite and the shiny sphalerite makes this piece a standout addition to any fine mineral collection. Originating from Stand Sterg (Trepca) in Kosovo, it's a must-have for collectors who appreciate unique and visually captivating minerals.