Anthracite coal is a type of hard coal that is known for its high carbon content, typically ranging from 86% to 97%. It is the highest rank of coal and is characterized by its shiny, black appearance and low sulfur content. Due to its high energy density, anthracite is often used for heating and in industrial processes. This coal is primarily found in regions like Pennsylvania in the United States and parts of China. Its combustion produces a hot, clean flame, making it an efficient fuel source. Anthracite is also used in water filtration and as a carbon source in various applications.