Sphalerite on Dolomite

Zelidja Mine, Touissit-Bou Bekker mining district, Jerada Province, Oriental Region  Morocco

Specimen size: 7.8 × 6.6 × 3.6 cm = 3.07” × 2.60” × 1.42”
Main crystal size: 2 × 1.6 cm = 0.79” × 0.63”