Sphalerite with Dolomite and Calcite

Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 12 × 10.5 × 4.7 cm = 4.72” × 4.13” × 1.85”
Main crystal size: 4.3 × 2.8 cm = 1.69” × 1.10”