Pyrite after Pyrrhotite with Galena, Calcite, Quartz and Dolomite

Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo

Specimen size: 16 × 12.5 × 10.5 cm = 6.30” × 4.92” × 4.13”
Main crystal size: 9.3 × 6.8 cm = 3.66” × 2.68”