shale mineral stone specimen from mining and quarrying industries fine grained clastic sedimentary rock composed |
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| navigate by keyword : background bone bonecoal carbonaceous clastic clay coalbone cobble decorative finegrained gem gemmological gemmology gemological gemology geological geology graphite gray isolated little material metamorphic mineral mud natural nature object ore ornamental pebble piece quarry raw rock sample schist sedimentary shale shooting small specimen stone structure surface texture yellow |
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| Shale mineral stone specimen from mining and quarrying industries. Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals. |
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