Rice coal is anthracite coal that ranges from 3/16 to 5/16 of an inch. Anthracite coal is a type of mineral coal that has a high luster and is hard and compact.
Other names for anthracite include black coal, hard coal, stone coal, Kilkenny coal, crow coal, blind coal and black diamond. However, these names can vary based on geographic location. Anthracite has a high energy per weight ratio. The main use of anthracite is for domestic fuel in hand-fired stoves or automatic stoker furnaces. Russia, Vietnam, South Africa, Ukraine and the US are the major producers of rice coal.