Cuprite

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

Specimen size: 3.3 × 3.2 × 2.5 cm = 1.30” × 1.26” × 0.98”
Main crystal size: 2.2 × 1.6 cm = 0.87” × 0.63”