anthracite (n.) Look up anthracite at Dictionary.com
"non-bituminous coal," 1812, earlier (c.1600) a type of ruby-like gem described by Pliny, from Latin anthracites "bloodstone, semi-precious gem," from Greek anthrakites "coal-like," from anthrax (genitive anthrakos) "live coal" (see anthrax). Related: Anthractic (adj.).