Stannite with Chalcopyrite, Ferberite and Quartz - Yaogangxian Mine, China - 8,0 x 7,0 x 6,0 cm

Mineral: Stannite with Chalcopyrite, Ferberite and Quartz
Locality: Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
Dimensions: 8,0 x 7,0 x 6,0 cm

Description: Main crystal size: 5,2 cm Ball of small stannite crystals partially covered with chalcopyrite, with at the center a very sharp-edged crystal of ferberite measuring 6.2 cm, terminating in a peak and laterally twinned, and two quartz crystals on the edges (the largest measuring 5 cm) MIM number 1251 Photographer: Augustin de Valence (Aïnu)