Miersite on Cuprite

Poteryaevskoe Mine, Rubtsovsky District, Altai Krai  Russia

Specimen size: 2.9 × 1.7 × 1.9 cm = 1.14” × 0.67” × 0.75”
Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”