Chalcocite with Bornite

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

Specimen size: 2.4 × 2.0 × 1.4 cm = 0.94” × 0.79” × 0.55”
Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”