anthracite

noun

1. a hard natural coal that burns slowly and gives intense heat
   Terjemahkan ke Indonesia sumber: wordnet30
2. 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.
   Terjemahkan ke Indonesia sumber: webster1913