Question

highest quality hard coal​

Answer 1

Answer:

Anthracite

Anthracite. Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals

Answer 2

Answer:

Anthracite is the highest quality hard coal.