No. Coal is a noun, but is widely used as an adjunct with other nouns, as in coal scuttle, coal car, coal chute, or coal miner. The adjective "coaly" is used for the look, smell or other attributes of coal.
Coal is a very common noun. Lump is a common adjective and noun.
A noun in the possessive case frequently functions as an adjective modifying another noun:as in "The miner's face was covered in coal dust."
coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal coal
Coal mines, coal bins, coal hods, and anywhere coal is or was.
coal, coal,
The coal miner mines coal from the coal mine.
Coal Bunker, Coal scuttle, Coal hod
Yes, coal miners mine coal.
The finest quality coal is called the bituminous coal, it is finer than the lignite coal.
It depends whether a coal cart would cart coal?
Another name for bituminous coal is soft coal.
Bituminous coal is a soft coal, compared to anthracite coal, a hard coal. Bituminous coal is a long-burning, hot burning source of fuel.