We offer lignite coal lignite coal also referred to as brown coal, is a soft brown fuel and is considered the lowest rank of coal. It has characteristics that put it somewhere between coal and peat. Its carbon content varies from 40-55 % and it contains about 25-35% of moisture. The calorific value of lignite ranges between 6000-7000 b.th.u (3300-3900 k.calkg). Lignite is mainly used in power generation, and brick manufacturing units.