Coal mining in northeast India: an overview of
May 25, 2016#0183;#32;Northeast India has a good deposit of subbituminous tertiary coal. The northeast Indian coals have unusual physicochemical characteristics such as high sulfur, volatile matter and vitrinite content, and low ash content. In addition, many environmental sensitive organic and mineral bound elements such as Fe, Mg, Bi, Al, V, Cu, Cd, Ni, Pb, and Mn etc. remain enriched in these coals.