Sphalerite with Galena and Quartz

Tongren Mine, Tongren, Tongren Prefecture, Guizhou Province  China

Specimen size: 14.5 × 10.4 × 8.3 cm = 5.71” × 4.09” × 3.27”
Main crystal size: 4 × 3.3 cm = 1.57” × 1.30”