Lewis & Short

anthrăcĭas, v. anthracitis.

anthrăcītis, ĭdis, f., = ἀνθρακῖτις, a kind of carbuncle, the coal-carbuncle, Plin. 37, 7, 27, § 99; in Sol. 37 fin. called an-thrăcĭas, ae, m., = ἀνθρακίας.