West Bengal stands third in the country in terms of mineral production. The state contributes about one-fifth to the total production of minerals in the country. Coal constitutes 99% of the minerals extracted in West Bengal; fireclay, china clay, limestone , copper , iron , wolfram , manganese and dolomite are mined in small quantities. The state has rich deposits of coal, rock phosphate, granite, manganese, silica, fire clay, road metal, quartz, apatite, dolomite, feldspar, limestone and others.
There are good possibilities of obtaining mineral oil and natural gas in the areas near the Bay of Bengal , in Purba Medinipur ,Sundarbans , South 24 Parganas and North Bengal plains. Research is undergoing for finding natural gas in various places.