The type of coal that burns the most efficiently is anthracite coal.
The type that burns.
Anthracite, as long as it has low ash and sulfur content
Bituminous coal is the most common type of coal.
Peat is sometimes considered a type of coal-so surely it must be seen as the most common. There is a lot of bituminous ("soft") coal. Anthracite ("hard") coal, which produces less air pollution, is less common.
The type of coal that burns the most efficiently is anthracite coal.
The type that burns.
Lignite.
egg rolls
coal
coal
Anthracite, as long as it has low ash and sulfur content
Bituminous coal is the most common type of coal.
Bituminous coal, or soft coal, is the most common type of coal produced in the United States.
Anthracite coal would fit the description of a metamorphic rock that burned.
Coal that has become diamond.
Anthracite is the most metamorphosed type of coal (but still represents low-grade using only the more expensive anthracite coal in its passenger locomotives,