Economic Importance of Igneous Rocks

♤ They are a reservoir of minerals.

♤ Majority of metallic minerals are found in igneous rocks.

♤ Economically important minerals are found in these rocks-Magnetic iron, nickel, copper, lead, zinc, chromite, manganese, tin.

♤ Rare minerals like gold, diamonds, platinum are also found in these rocks.

♤ Basalt and granite are used for construction of buildings and roads.

♤ The formation of black soils is probably the result of erosion of these rocks. These soils are very much suited to cultivation of cotton and some other crops.