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OpenStudy (anonymous):
Why is coal not classified as a mineral?
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OpenStudy (anonymous):
Coal is not considered a mineral because it is a rock that is formed from decayed plants and animals while minerals are described as being inorganic. The term inorganic means they are neither plants nor animals
OpenStudy (anonymous):
A mineral is an inorganic substance that forms with a crystal structure. Coal is an organic substance, so therefore it is not a mineral.
OpenStudy (e.mccormick):
This is not a social science question.
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