ANTHRACITE!
It is anthracite.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
anthracite
anthracite coal
Anthracite is a form of coal. It is hard black and shiny.
Anthracite is a form of coal. It is hard black and shiny.
Anthracite is a form of coal, coal is primary carbon, and carbon is black.
Anthracite, also known as anthracite coal, is formed through metamorphism. Anthracite needs pressure to form, as well temperatures of at least 250 degrees Celsius.
ANTHRACITE!
Anthracite is a form of coal, which is a fossil fuel, and is thus non-renewable.
Anthracite is a form of high quality coal. It is entirely natural.
It is anthracite.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
anthracite coal is the metamorphic form of bituminous coal which is the sedimentary form. in other words it has been heated under pressure.
Anthracite
anthracite