Anthracite (Greek ἀνθρακίτης (anthrakítes), "coal-like," from ἄνθραξ (ánthrax), coal) is a hard, compact variety of mineral coal that has a high ...
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anthracite, also called hard coal , the most highly metamorphosed form of coal. It contains more fixed carbon (86 percent or greater on a dry, ash-free basis) than ...