Magnetite: Fe2+Fe3+2O4
Nice Magnetite group of 12 mm with biggest crystal of 5 mm. Locality: Susa Valley, Torino Province, Piedmont, Italy; Collection & Photo M.Chinellato; photo copyright © Chinellato Matteo.
Source: mindat.org
Nice Magnetite group of 12 mm with biggest crystal of 5 mm. Locality: Susa Valley, Torino Province, Piedmont, Italy; Collection & Photo M.Chinellato; photo copyright © Chinellato Matteo.
Source: mindat.org