Freibergite with Quartz and Pyrite

Pulacayo Mine, Huanchaca, Antonio Quijarro Province, Potosí Department  Bolivia

Specimen size: 9.3 × 6.3 × 5.8 cm = 3.66” × 2.48” × 2.28”
Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”