Chalcopyrite with Quartz

Tincroft Mine, Carn Brea and Tincroft United Mines, Carn Brea, Camborne - Redruth - Saint Day District, Cornwall  United Kingdom (±1926)

Specimen size: 3.7 × 3.4 × 3.1 cm = 1.46” × 1.34” × 1.22”
Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”