piece raw specimen black shale rock isolated white background |
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navigate by keyword : background black calcite carbon clastic clay closeup coal composed crystal detail energy especially fissile fossil fuel geology granite gravel hand holding isolated laminated macro material mine mineral minerals natural nature object ore pattern pebble pebbles piece predominance quartz raw rock rocks rough sedimentary shale silt specimen stone stones texture white |
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Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals , especially quartz and calcite. |
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