Calcite

Tonglüshan Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2022)

Specimen size: 11.4 × 10.8 × 6.3 cm = 4.49” × 4.25” × 2.48”
Main crystal size: 6.4 × 4 cm = 2.52” × 1.57”