Enargite with Pyrite and Quartz

Butte, Butte District, Silver Bow County, Montana  USA (±1948)

Specimen size: 6 × 3.5 × 4.5 cm = 2.36” × 1.38” × 1.77”
Main crystal size: 2.4 × 2.4 cm = 0.94” × 0.94”