Pyrite with Quartz and Calcite

Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (2000-2021)

Specimen size: 8.4 × 7.2 × 5.4 cm = 3.31” × 2.83” × 2.13”
Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”