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coal

coal, fuel substance of plant origin, largely or almost entirely composed of carbon with varying amounts of mineral matter.

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The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

More on coal from Infoplease:

bituminous coal: meaning and definitions - bituminous coal: Definition and Pronunciation
chestnut coal: meaning and definitions - chestnut coal: Definition and Pronunciation
mineral charcoal: meaning and definitions - mineral charcoal: Definition and Pronunciation
cob coal: meaning and definitions - cob coal: Definition and Pronunciation

See more Encyclopedia articles on: Mineralogy and Crystallography

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