sedimentary library

Learn about Sedimentary Rocks and get information on topics related to Sedimentary Rocks.

Featured Article: Fuller's earth

Fuller's earth is a clay-rich material used mainly as a cleaner and purifier. See more »

Bentonite

Bentonite is a type of clay that swells to several times its original size when wet.

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Clay

Clay is a substance present in most kinds of soil.

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Fuller's earth

Fuller's earth is a clay-rich material used mainly as a cleaner and purifier.

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Limestone

Limestone is a type of rock made up mostly of calcite, a mineral form of calcium carbonate.

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Marl

Marl, mahrl, is the common name for calcareous mudstone, a type of rock that consists of almost equal amounts of clay and calcite or dolomite.

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Oil shale

Oil shale is a soft, fine-grained sedimentary rock from which oil and natural gas are obtained.

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Sandstone

Sandstone is a type of rock composed chiefly of sand that has been "cemented" together by pressure or by minerals.

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Sedimentary rock

Sedimentary, sehd uh MEHN tuhr ee, rock is rock formed when mineral matter or remains of plants and animals settle out of water or, less commonly, out of air or ice.

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Shale

Shale is a fine-grained sedimentary rock that is formed by the compression of muds.

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