Coal refuse (also described as coal waste, rock, slag, coal tailings, waste material, rock bank, culm, boney, or gob) is the material left over from coal...

coal that is partially economically recoverable. Coal refuse is distinct from the byproducts of burning coal, such as fly ash. Piles of coal refuse can...

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of...

moisture and mineral matter. Since the 1980s, anthracite refuse or mine waste has been used for coal power generation in a form of recycling. The practice...

coal that is partially economically recoverable. Coal refuse is distinct from the byproducts of burning coal, such as fly ash. Piles of coal refuse can...

Coal dust is a fine-powdered form of coal which is created by the crushing, grinding, or pulverization of coal rock. Because of the brittle nature of coal...

anthracite, a variety of coal also some carboniferous rock strata known as the Culm Measures Culm (in American English), coal refuse or coal waste Culm (botany)...

process of heating coal in the absence of oxygen to a temperature above 600 °C (1,112 °F) to drive off the volatile components of the raw coal, leaving behind...

largest producer of coal in the world, while Australia is the largest coal exporter. Countries with the largest proven black coal reserves are the United...

your play among the sleepy rocks (102). Tailings Overburden Minestone Coal refuse Collins English Dictionary – Complete and Unabridged, 12th Edition. HarperCollins...