Identify Rock Sedimentary

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- These are fragments or pieces of rock or minerals. The composition of clastic sedimentary rocks is divided into three types - clay/silt, sand and gravel. Clay and silt are less than 1/16 mm. These are not visible to the unaided eye..

P.ographs and information for a large collection of igneous, metamorphic and sedimentary rocks. sedimentary rock is one of the three main rock groups, the other two being igneous and metamorphic rocks. It is formed by the consolidation of sediments that have .GeoSciences Quiz for Sedimentary Rocks 1. Which type of sedimentary rock is formed from rock and mineral fragments weathered from rocks at.Types of Rocks Rocks are not all the same! The three main types, or, of rock are sedimentary, metamorphic, and igneous and the differences among them have to .

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