difference between different types of coal
Answer   The main difference is the amount of carbon. Anthracite is harder and contains more carbon. Bituminous coal is a sedimentary rock and anthracite coal is acâ¦tually a metamorphic rock that has undergone tremendous pressures, usually from mountain building events.
Bituminous coal is soft and burns hotter and longer. Anthracite coal is harder than Bituminous coal and is not preferred for heating. Bituminous coal is soft and burns hotter and longer. Anthracite coal is harder than Bituminous coal and is not preferred for heating.