The Chemical formula of Iron III oxide is Fe2O3. It is attained from the mineral ore named hematite. It really is mined after which processed to obtain iron oxide for extracting the metal. Iron is also known as Ferrum in Latin. The valency of this metal is two and three. https://aerogel-powder58035.wikigdia.com/7587609/an_unbiased_view_of_3d_utskrifter_metall