Bournonite with Boulangerite

Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China

Specimen size: 3.3 × 2.1 × 2 cm = 1.30” × 0.83” × 0.79”
Main crystal size: 2.1 × 2 cm = 0.83” × 0.79”