Calcite (variety cobaltoan) with Quartz

Bou Azzer Mines, Bou Azzer mining district, Ouarzazate Province, Drâa-Tafilalet Region  Morocco (2021)

Specimen size: 4.8 × 3.9 × 2.4 cm = 1.89” × 1.54” × 0.94”
Main crystal size: 0.8 × 0.8 cm = 0.31” × 0.31”