Octahedral Pyrite with Magnetite and Calcite

Brosso Mine, Cálea, Léssolo, Canavese District, Metropolitan City of Turin Province, Piedmont (Piemonte)  Italy

Specimen size: 12.3 × 5.7 × 5.2 cm = 4.84” × 2.24” × 2.05”
Main crystal size: 1.6 × 1.2 cm = 0.63” × 0.47”