Chalcopyrite with Calcite

Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China

Specimen size: 3 × 2.4 × 1.9 cm = 1.18” × 0.94” × 0.75”
Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”