Cuprite with Calcite

Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Congo D.R.

Specimen size: 5.5 × 4.6 × 3.3 cm = 2.17” × 1.81” × 1.30”
Main crystal size: 1 × 0.6 cm = 0.39” × 0.24”