Chalcopyrite coating Tetrahedrite

Kaiwu Mine, Hezhang, Bijie Prefecture, Guizhou Province  China (2013)

Specimen size: 3.8 × 3.7 × 3.1 cm = 1.50” × 1.46” × 1.22”
Main crystal size: 3.2 × 3 cm = 1.26” × 1.18”