Pyrite, Calcite (Ref: 21TRM12)

Two generations of Pyrite crystals, an older generation of shiny crystals of cubic habit, one of them clearly dominant in the center, with marked curvatures on the edges and polycrystalline growths, and that has been partly covered by a tapestry of Calcite crystals with a fine outer layer of bluish tones. The second generation of Pyrite crystals has a much more vivid color and golden reflections, deposited on the limestone, with the crystals being smaller than those of the first generation.
The Trepča mining complex is one of the largest polymetallic deposits in the world and for many years produced exceptional specimens of Sphalerite as well as various combinations of sulphides and carbonates, as shown in this specimen from the former collection of Ferat Voca.
Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo (2000-2021)

Specimen size: 8.7 × 6.5 × 5.4 cm = 3.43” × 2.56” × 2.13”