Chalcocite with Bornite

Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  United Kingdom

Specimen size: 3 × 2.6 × 1.7 cm = 1.18” × 1.02” × 0.67”
Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”