Rhodochrosite with manganese oxides

Uchucchacua Mine, Oyón Province, Lima Department  Peru (2006)

Specimen size: 5.7 × 4.6 × 4.2 cm = 2.24” × 1.81” × 1.65”
Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”