Sphalerite with Quartz, Pyrite and Galena

Naica Mine, Naica, Municipio Saucillo, Chihuahua  Mexico

Specimen size: 11.5 × 6.3 × 6 cm = 4.53” × 2.48” × 2.36”
Main crystal size: 2.5 × 1.9 cm = 0.98” × 0.75”