iron copper aluminium manganese and gold are important minerals
Answers
Minerals are formed over a period of millions of years in the earth’s crust. They are derived from rocks, which form the earth’s crust. They are of different kinds, for example, salt, coal, petroleum, quartz, bauxite, iron, copper, gold and diamond. They are broadly grouped as metallic and non-metallic. Mineral ores containing metal are known as metallic minerals. The remaining minerals are called non-metallic. Gold, copper, silver, tin, aluminium and iron are examples of metals. Those metals occur in combination with other mineral components are called ores. Metals are separated from the ores by using heat. This process is known as smelting. Coal and petroleum are used as sources of energy. Quartz is used extensively in the production of glass, electronic circuits and silicon chips. Most of the minerals are associated with the igneous and metamorphic rocks of the Deccan and parts of Bihar, Odisha, M.P., Rajasthan and Assam as well as some parts of the Himalayan region.