Sphalerite with Calcite

Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (2016)

Specimen size: 5.8 × 5.1 × 4.4 cm = 2.28” × 2.01” × 1.73”
Main crystal size: 3.4 × 2.6 cm = 1.34” × 1.02”