rock coal
No. Coal is an organic sedimentary rock.
Coal is considered to be a rock.
nope coal is a rock
Coal is considered a sedimentary rock, except for Anthracite which is considered a metamorphic rock.
It is a rock derived from organic process, such as coal.
rock coal
No. Coal is an organic sedimentary rock.
Bituminous coal is consided a sedimentary rock. Anthracite coal is bituminous coal that has been metamorphosed by great pressure and heat and is considered a metamorphic rock.
Coal is a form of rock. It is an organically formed sedimentary rock.
Peat (not much of a rock).
nope coal is a rock
Coal is considered to be a rock.
Yes, anthracite coal is a type of coal that is considered a metamorphic rock, not a sedimentary rock. It forms from the metamorphism of bituminous coal at high pressures and temperatures.
It is a metamorphic rock . Also the coal is sometimes considered a sedimentary rock.
Coal is considered a sedimentary rock, except for Anthracite which is considered a metamorphic rock.
Coal is a sedimentary rock. However, harder forms of coal, because of exposure to elevated temperature and pressure, are metamorphic rock.