Multiple choice Which of the following forms of coal has the highest carbon content? Anthracite Bitumimous coal Lignite Peat Reveal answer Fill a bubble to check yourself A Correct answer Explanation Anthracite is a hard, compact variety of mineral coal that has a high luster. It has the highest carbon count, the fewest impurities, the highest calorific content of all types of coals, which also include bituminous coal and lignite.