Dolomite with Calcite, Pyrite, Arsenopyrite and Quartz

Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (1994-2002)

Specimen size: 18.5 × 11.5 × 7.7 cm = 7.28” × 4.53” × 3.03”
Main crystal size: 4 × 3.3 cm = 1.57” × 1.30”