amalgamated 11 Associations

amalgamate coalesced consolidated fused united (similar term)

anthracite 10 Associations

anthracite coal hard coal coal (generic term)

anthracite coal 15 Associations

anthracite hard coal coal (generic term)

bituminous coal 15 Associations

soft coal coal (generic term)

brown coal 10 Associations

lignite wood coal coal (generic term) humate (generic term)

cannel coal 11 Associations

bituminous coal (generic term) soft coal (generic term)