why is anthracite considered to be the best variety of coal ??
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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. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 92% and 98%.
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it is considered as the best variety of coal as it has the most carbon content out of the four varities.
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