Chalcopyrite with Tetrahedrite, Galena and Quartz

Herodsfoot Mine, Lanreath, Liskeard, Cornwall  United Kingdom

Specimen size: 8 × 6.9 × 4.8 cm = 3.15” × 2.72” × 1.89”
Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”