shale rock stone nature background |
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| navigate by keyword : abstract background backgrounds beach black call claysize commonly compaction finegrained forms granite gravel gray grey macro mineral mudn natural nature outdoors particles pattern pebble pebbles rock rocks sand sedimentary shale silt smooth stone stones surface texture textured |
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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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