Sphalerite with Quartz, Galena and Chalcopyrite

Commodore Mine, Creede District, Mineral County, Colorado  USA

Specimen size: 6.4 × 4.8 × 4.9 cm = 2.52” × 1.89” × 1.93”
Main crystal size: 2.8 × 2.6 cm = 1.10” × 1.02”