Important Ores of Iron: SN Ores Formula 1 Haematite (Red) Fe 2 O 3 2 Magnetite Fe 3 O 4 3 Siderite or Spathic FeCO 3 4 Iron Pyrite (fool’s Gold) FeS 2 5 Goethite FeO(OH) 6 Limonite 2Fe 3 O 4 .3H 2 O Others Ores 7 Ilmenite (FeO+TiO 2 ) FeTiO 3 8 Chromite (FeO+Cr 2 O 3 ) FeCr 2 O 4 Extraction process of iron: Iron is extracted from if oxide ores especially form the magnetite, Haematite, and Limonite ores. The extraction involves the following process. (1) Enrichment of concentration of ores: (A)Dressing or Benefaction of the ore: After mining, Iron ore is first broken into small pieces of 3 – 5 cm in size. (B)Magnetic and Gravity Separation: Use due to the pres
