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5 October, 11:40

Is coal a mineral, why or why not?

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  1. 5 October, 12:10
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    Coal is not a mineral because it is organic, and minerals are inorganic. It forms over millions of years from the compressed, heated remains of dead plants and animals.
  2. 5 October, 12:10
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    It's classified as an organic sedimentary rock, but rocks are combinations of minerals, and minerals are inorganic. Coal is made of decomposed plants, which are organic.
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