Miersite on Cuprite

Poteryaevskoe Mine, Rubtsovsky District, Altai Krai  Russia (2011)

Specimen size: 3.5 × 3 × 2.7 cm = 1.38” × 1.18” × 1.06”
Main crystal size: 2.5 × 1.7 cm = 0.98” × 0.67”