Calcite (variety Co-bearing calcite)

Oumlil Mine, Oumlil, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco

Specimen size: 10.3 × 8.9 × 4.6 cm = 4.06” × 3.50” × 1.81”
Main crystal size: 2.3 × 1 cm = 0.91” × 0.39”