Product
Sub-bituminous
The highest grade of coal, hard and glossy with high carbon content and energy density.
Anthracite
The highest grade of coal, hard and glossy with high carbon content and energy density.
Bituminous
A dense coal, usually black, used primarily for electricity generation and steel production.
Peat
An early stage of coal formation, composed of partially decayed plant material, used as a fuel in some regions.
Lignite
Also known as brown coal, it has the lowest carbon content and is mainly used in power plants near the mining sites.
Graphite
A crystalline form of carbon related to coal, used in pencils and as a lubricant, not typically used as fuel.