Calcite

Daye mining area, Edong, Daye, Huangshi Prefecture, Hubei Province  China (03/2022)

Specimen size: 8.1 × 6.4 × 4 cm = 3.19” × 2.52” × 1.57”
Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”