Copper with Cuprite

Poteryaevskoe Mine, block 2-1, ↓100 m., Rubtsovsky District, Altai Krai  Russia (06-08/2008)

Specimen size: 4.7 × 3.4 × 3 cm = 1.85” × 1.34” × 1.18”
Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”