"Minerals are unevenly distributed in India." Following examples are :
(i) Minerals in Deccan : The peninsular rocks contain most of the reserves of coal, metallic mineral, mica, and many other non-metallic minerals.
(ii) Minerals in western and eastern regions of India :
Sedimentary rocks of western and eastern part of India i.e., Gujarat and Assam have most of the petroleum deposits.
(iii) Minerals in Rajasthan : Rajasthan with the rock systems of the peninsular have reserves of many non-ferrous minerals.
(iv) Minerals in North India: The vast alluvial plains of North India are almost devoid of economic minerals. These variations exist largely because of the differences in the geological structure, processes and time involved in the formation of minerals.