specimen red shale rock isolated white background |
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navigate by keyword : background black carbon claysize coal commonly compaction crystal energy finegrained forms fossil fuel geology granite hand holding isolated macro material mine mineral mud natural nature object ore particles piece raw red rock rough sedimentary shale silt specimen stone texture white |
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Shale is a fine-grained sedimentary rock that forms from the compaction of silt and clay-size mineral particles that we commonly call mud. |
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