Distribution of Minerals in India. Minerals are unevenly distributed on the earth’s surface.; All minerals are exhaustible in nature, i.e., will exhaust after a certain time.; However, these minerals take long time to form, but they cannot be replenished immediately at the time of need.; More than 97% of coalreserves occur in the valleys of Damodar, Sone, Mahanadi, and Godavari rivers.