- Bournonite, Quartz
- Miniature, 4.9 x 4.2 x 2.5 cm
- Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
A 1.8 cm, splendent, metallic, elongated bournonite crystal is aesthetically set in a quartz crystal-lined vug on this fine specimen from recent finds at the Yaogangxian Mine of China. The crystal has both stepped-growth and striated faces.