Siderite with Pyrrhotite

Morro Velho Mine, Nova Lima, Belo Horizonte, Minas Gerais  Brazil

Specimen size: 5 × 4.8 × 3.8 cm = 1.97” × 1.89” × 1.50”
Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”