Helvite, genthelvite, quartz, calcite Huanggang Mine, ...
Description:
Helvite, genthelvite, quartz, calcite Huanggang Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China 75 mm × 52 mm × 37 mm. Main crystal size: 15 mm × 13 mm
All pictures, text, design © Forum FMF 2006-2024