Iron ore - WikipediaIron ores are rocks and minerals from which metallic iron can be economically extracted. .. Currently magnetite iron ore is mined in Minnesota and Michigan in the U.S., Eastern Canada and Northern Sweden. Magnetite ... Iron ore in Africa.pelletisation of limonite ore congo,Limonite - WikipediaLimonite is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying . While the first iron ore was likely meteoric iron, and hematite was far easier to smelt, in Africa, where the first evidence of iron metallurgy occurs,.
pelletisation of limonite ore congo