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Brilliant Coal Mining Pic

2020-7-22Anthracite also called hard coal the most highly metamorphosed form of coal.It contains more fixed carbon 86 percent or greater on a dry ash-free basis than any other form of coal and the least amount of volatile matter 14 percent or less on a dry ash-free basis and it has calorific values near 35 megajoules per kilogram approximately 15000 British thermal units per pound not much

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