anthracite
n. 'மட்கரி', நிலக்கரிவகை, நிலக்கீல் சத்தற்றநிலக்கரி.
An"thra*cite, n. Etym: [L. anthracites a kind of bloodstone; fr. Gr. Anthrax.] Defn: 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.