Sphalerite on Arsenopyrite

Huanggang Mines, shaft 5, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (10/2014)

Specimen size: 5.2 × 4.1 × 2.9 cm = 2.05” × 1.61” × 1.14”
Main crystal size: 2.1 × 1.5 cm = 0.83” × 0.59”