List of Sedimentary Rocks

• Argillite – Sedimentary rock, mostly of indurated clay particles.
• Arkose – A type of sandstone containing at least 25% feldspar.
• Banded iron formation – Distinctive layered units of iron-rich sedimentary rock that are almost always of Precambrian age.
• Breccia – Rock composed of broken fragments cemented by a matrix.
• Calcarenite – A type of limestone that is composed predominantly of sand-size grains.
• Chalk – A soft, white, porous sedimentary rock made of calcium carbonate.
• Chert – A hard, fine-grained sedimentary rock composed of cryptocrystalline silica.
• Claystone – Clastic sedimentary rock composed primarily of clay-sized particles.
• Coal – Combustible sedimentary rock composed primarily of carbon.

• Conglomerate – A coarse-grained clastic sedimentary rock with mainly rounded to subangular clasts.
• Coquina – A sedimentary rock that is composed mostly of fragments of shells.
• Diamictite – A lithified sedimentary rock of non- to poorly sorted terrigenous sediment in a matrix of mudstone or sandstone.
• Diatomite – Soft, siliceous sedimentary rock that is easily crumbled.
• Dolomite (rock), also known as Dolostone – Sedimentary carbonate rock that contains a high percentage of the mineral dolomite.
• Evaporite – A water-soluble mineral sediment formed by evaporation from an aqueous solution
• Flint – Cryptocrystalline form of the mineral quartz.
• Geyserite – A form of opaline silica that is often found around hot springs and geysers.
• Greywacke – A hard, dark sandstone with poorly sorted angular grains in a compact, clay-fine matrix.
• Gritstone – A hard, coarse-grained, siliceous sandstone.
• Itacolumite – A porous, yellow sandstone that is flexible when cut into thin strips.
• Jaspillite – A banded mixture of hematite and quartz.
• Laterite – A product of rock weathering in wet tropical climate rich in iron and aluminum.
• Lignite – soft, brown, combustible, sedimentary rock.
• Limestone – Sedimentary rocks made of calcium carbonate.
• Marl – Lime-rich mud or mudstone which contains variable amounts of clays and silt.
• Mudstone – Fine grained sedimentary rock whose original constituents were clays or muds.
• Oil shale – Organic-rich fine-grained sedimentary rock containing kerogen.
• Oolite – Sedimentary rock formed from ooids.
• Phosphorite – A non-detrital sedimentary rock that contains high amounts of phosphate minerals
• Sandstone – Type of sedimentary rock.
• Shale – A fine-grained, clastic sedimentary rock.
• Siltstone – Sedimentary rock which has a grain size in the silt range.
• Sylvinite – A sedimentary rock made of a mechanical mixture of sylvite and halite.
• Tillite – Till which has been indurated or lithified by burial.
• Travertine – A form of limestone deposited by mineral springs.
• Tufa – Porous limestone rock formed when carbonate minerals precipitate out of ambient temperature water.
• Turbidite – The geologic deposit of a turbidity current.
• Wackestone – A mud-supported carbonate rock that contains greater than 10% grains.