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added by Kasia June 26, 2012, 9:51 p.m.
Which type of a coal is the youngest?
lignite (brown coal)
graphite
bituminous coal
anthracite
Coal forms when the dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, then bituminous coal, and lastly anthracite.
Kasia
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Very interesting!
reach: rather globalcoalgeologymineralsnatural resourcesnature

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