Helvine-Genthelvite with Calcite, Quartz and chlorite

Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (2012)

Specimen size: 5.4× 4.1 × 3.8 cm = 2.13” × 1.61” × 1.50”
Main crystal size: 2 × 1.9 cm = 0.79” × 0.75”