What does anthracite mean?
The definition of anthracite
An”thra*cite, n.
Etym: [L. anthracites a kind of bloodstone; fr. Gr. Anthrax.]

A hard, compact variety of mineral coal, of high luster, differing from bituminous coal in containing little or no bitumen, in consequence of which it burns with a nearly non luminous flame. The purer specimens consist almost wholly of carbon. Also called glance coal and blind coal.