lignite Synonyms

wood coal brown coal garnet fluorite feldspar emery alabaster crystal cryolite corundum graphite jet loellingite ludlamite ludwigite mineral diatomite fluorspar coking coal coke cobalt boron bauxite barite azurite asphalt asbestos aragonite anthracite brimstone brookite coal clay chromite chlorite charcoal chalcedony carbon calcite steam coal