Sphalerite with Siderite

Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (2014)

Specimen size: 9.1 × 5.4 × 3.3 cm = 3.58” × 2.13” × 1.30”
Main crystal size: 2.3 × 1.4 cm = 0.91” × 0.55”