(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Millosevich F. (1919) - Giacimenti di Cromo. In «Giacimenti di minerali accessori per la siderurgia». - Atti Soc. Progr. Scienze, X Riunione, Pisa, aprile 1919.