Coal: Anthracite, Bituminous, Coke, Pictures, Formation, UsesCoal is a biological sedimentary rock that forms from plant debris. . Coal-Fired Power Plant: Photo of a power plant where coal is burned to produce electricity.coal stone rocks,Sedimentary Rocks | Pictures, Characteristics, Textures, TypesOrganic sedimentary rocks such as coal, some dolomites, and some lines . Some of the most common are: production of cement, crushed stone, and acid.
coal stone rocks