Aug 02, 2020 Shale is the most common sedimentary rock, accounting for about 70 percent of the rock found in the Earths crust. It is a fine-grained clastic sedimentary rock made of compacted mud consisting of clay and tiny particles of quartz, calcite, mica, pyrite, other minerals, and organic compounds. Shale occurs worldwide wherever water exists or once.Free consultation 40 years of industry experience providing one-stop solution
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