An overview of Hematite iron ore
Iron, a metallic element found in about 5% of the earth’s crust, forms compounds with valencies +2 and +3. This transition metal and element can form three iron oxides namely ferrous oxide (FeO), ferric oxide (Fe2O3) and ferroferric oxide (Fe3O4). Ferric Oxide is also called hematite. The colour of hematite ranges from reddish-brown to gray […]