Anthracite (noun)

A type of coal that is hard, dense, and has a high carbon content, making it a valuable fuel source.

Origin:

Late 18th century: from french anthracite, from greek anthrakītis, from anthrax coal.

Examples:

1. Anthracite is often used as a fuel source in power plants and steel mills.
2. Compared to other types of coal, anthracite burns hotter and more efficiently.
3. The discovery of large deposits of anthracite in the 19th century fueled the growth of many industrial cities.
4. Anthracite is often considered to be a cleaner and more environmentally-friendly fuel source than other types of coal.
5. Due to its high energy content, anthracite is often used as a fuel source in developing countries where other sources of energy may be limited.