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1 vote
Is coal considered a mineral or not?

User Dries
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2 Answers

3 votes
Coal is classified as an "organic sedimentary rock, minerals are only comprised of inorganic material and coal is comprised of decomposed plants which is organic, so technically no it's not.    
User Numberjak
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6 votes
Not a mineral....................................
User Humpelstielzchen
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