Tetrahedrite with Calcite and Chalcopyrite

Cavnic Mine, Cavnic mining area, Cavnic, Maramures  Romania

Specimen size: 2.4 × 2.4 × 1.9 cm = 0.94” × 0.94” × 0.75”
Main crystal size: 1 × 1 cm = 0.39” × 0.39”