+**Shale** is a fine-grained, clastic [sedimentary rock](/wiki/sedimentary_rock) formed from compacted [mud](/wiki/mud) and clay minerals. Its delicate layers often cradle ancient fossils, whispering tales of deep time. Shale is a significant source of hydrocarbons like natural gas and oil, trapped within its dense matrix.
+## See also
+- [Oil](/wiki/oil)
+- [Natural Gas](/wiki/natural_gas)
+- [Fossil](/wiki/fossil)
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