Sedimentary
- Argillite - a sedimentary rock composed primarily of clay-sized particles
- Arkose - a sedimentary rock similar to sandstone
- Banded iron formation - a fine grained chemical sedimentary rock composed of iron oxide minerals
- Breccia - a sedimentary or tectonic rock composed of fragments of other, broken rocks
- Chalk - a sedimentary rock composed primarily of coccolith fossils
- Chert - a fine grained chemical sedimentary rock composed of silica
- Claystone - a sedimentary rock formed from clay
- Coal - a sedimentary rock formed from organic matter
- Conglomerate - a sedimentary rock composed of large rounded fragments of other rocks
- Diamictite - a poorly sorted conglomerate
- Coquina - a sedimentary carbonate rock formed by accumulation of abundant shell fossils and fragments
- Diatomite - a sedimentary rock formed from diatom fossils
- Dolomite or dolostone - a carbonate rock composed of the mineral dolomite +/- calcite
- Evaporite - a chemical sedimentary rock formed by accumulation of minerals after evaporation
- Flint - a form of chert
- Greywacke - an immature sandstone with quartz, feldspar and rock fragments within a clay matrix
- Gritstone - essentially a coarse sandstone formed from small pebbles
- Itacolumite - porous, yellow sandstone
- Jaspillite - an iron-rich chemical sedimentary rock similar to chert or banded iron formation
- Laterite - a residual sedimentary rock formed from a parent rock under tropical conditions
- Lignite - a sedimentary rock composed of organic material; otherwise known as Brown Coal
- Limestone - a sedimentary rock composed primarily of carbonate minerals
- Marl - a limestone with a considerable proportion of silicate material
- Mudstone - a sedimentary rock composed of clay and muds
- Oil shale - a sedimentary rock composed dominantly of organic material
- Oolite - a chemical sedimentary limestone
- Sandstone - a clastic sedimentary rock defined by its grain size
- Shale - a clastic sedimentary rock defined by its grain size
- Siltstone - a clastic sedimentary rock defined by its grain size
- Travertine - a sedimentary rock containing calcite and iron oxides
- Turbidite - a particular sequence of sedimentary rocks which form within the deep ocean environment
- Wackestone - a matrix-supported carbonate sedimentary rock.
Read more about this topic: List Of Rock Types