Proustite on Calcite

Bouismas Mine, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (2013)

Specimen size: 8.2 × 5.2 × 3.3 cm = 3.23” × 2.05” × 1.30”
Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”