Fluorite (spinel twin) with Calcite

Weilasituo Mine, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region  China (07/2022)

Specimen size: 5.1 × 3.6 × 1.7 cm = 2.01” × 1.42” × 0.67”
Main crystal size: 5.1 × 3.1 cm = 2.01” × 1.22”