Helvine with Quartz, Calcite and Chlorite

Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (2013)

Specimen size: 11.5 × 6.8 × 6.4 cm = 4.53” × 2.68” × 2.52”
Main crystal size: 7.4 × 5.7 cm = 2.91” × 2.24”