Pyrrhotite with Dolomite

Morro Velho mine, Nova Lima, Minas Gerais  Brazil (±1988)

Specimen size: 12.8 × 11 × 5,9 cm = 5.04” × 4.33” × 1.97”
Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”