Calcite with Pyrite

Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (2015)

Specimen size: 9 × 9.8 × 5 cm = 3.54” × 3.86” × 1.97”