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| Any rock that contains a mineral that can be mined profitably. Pictured here is a specimen of magnetite discovered at an abandoned iron mine. This would have been considered ore during the mine's operation when it could be mined at a profit. |
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| Any rock that contains a mineral that can be mined profitably. Pictured here is a specimen of magnetite discovered at an abandoned iron mine. This would have been considered ore during the mine's operation when it could be mined at a profit. |
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