Iron Ores!

Iron ores are rocks and minerals. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the form of magnetite (Fe₃O₄), haematite (Fe₂O₃), geothite (FeO(OH)), limonite (FeO(OH).n(H₂O)) or siderite (FeCO₃).

Haematite: Hematite is a mineral, colored black to steel or silver-gray, brown to reddish brown, or red. There are different forms of haematite but they all have a rust - red streak. Haematite is harder than pure metal but much more brittle.