Iron is the most important among all the metals. Iron is dug out from mines. It is the most useful metals. The iron that we use is the form of iron ore. It is crushed by machines and melted in hot furnaces. Thus, pig or cast iron is made. After this, through different processes wrought iron is made. Steel is prepared from it.
Iron has many uses. It is called the back-bone of modern civilization. So many necessary things like scissors and razors, trains and trams, blades, bridges and buildings are made of iron. There is hardly any sphere of our life where iron is not used.
The two important ore minerals of iron are magnetite and hematite. Both of them are available in India. The major iron-ore producing states are Odisha, Bihar, Madhya Pradesh, Karnataka and Maharashtra.