SV2220TFB: Aggregate of complex twinned crystals of Sphalerite of deep black color, great luster, and with perfectly defined faces and edges with marked striations on some of the crystal faces and some dissolution figures, and partially coated by a multitude of whitish Calcite crystals in aggregates forming rosettes in strong color contrast.
The Trepča mining complex is one of the largest polymetallic deposits in the world and for many years has yielded exceptional pieces of Sphalerite, as well as various combinations of sulfides and carbonates as shown in this specimen, from the ex-Ferat Voca collection.
Stan Trg (Stan Terg, Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (2000-2021)

Specimen size: 5.8 × 5.4 × 2.4 cm = 2.28” × 2.13” × 0.94”

Main crystal size: 4.5 × 3.1 cm = 1.77” × 1.22”