Calcite with Sphalerite, Fluorite and Quartz

Naica, Municipio Saucillo, Chihuahua  Mexico

Specimen size: 8 × 7 × 5.7 cm = 3.15” × 2.76” × 2.24”
Main crystal size: 2.6 × 2.4 cm = 1.02” × 0.94”