Fluorite (stinkspat) - Johannessschacht pit, Wölsendorf, Oberpfalz, Bavaria, Germany
 
 Black-looking stink spar from the fluorspar locality in the Johannessschacht mine, Wölsendorf, Bavaria. Under intense lighting, a dark purple color can be seen on the edges of the cube-shaped crystals of up to 1.5 cm on the edge. Size is 3.5 cm x 3.5 cm.