Anthracite is a type of coal.
Coal. Anthracite is a very hard very clean burning metamorphic type of coal.
Anthracite is the hardest type of coal.
Anthracite is the hardest type of coal.
Anthracite coal
Anthracite is the hardest type of coal.
Anthracite, the hardest coal, forms from the greatest pressure.
Yes, anthracite coal is a type of coal that is considered a metamorphic rock, not a sedimentary rock. It forms from the metamorphism of bituminous coal at high pressures and temperatures.
anthracite
anthracite
The type of coal that burns the most efficiently is anthracite coal.
Anthracite is the most metamorphosed type of coal (but still represents low-grade using only the more expensive anthracite coal in its passenger locomotives,