anthracite
/ˈænθrəˌsaɪt/
noun
- A very hard, shiny type of coal that burns slowly with little smoke and a lot of heat.
- Anthracite is often used in steelmaking because it burns very hot.
- The old house was heated with anthracite in a special stove.
- Miners in Pennsylvania have been digging anthracite for over a century.