Uneven distribution of mineral resources :
(a) Peninsular rocks contain coal, metallic minerals, mica and many other non-metallic minerals.
(b) Sedimentary rocks on the Western and Eastern Ghats of the Peninsula, in Gujarat and Assam, have most of the petroleum deposits.
(c) Rajasthan has reserves of many non-ferrous minerals.
(d)Alluvial plains of North India are devoid of economic minerals.
