Sandstone is a sedimentary rock composed of sand-sized grains of mineral, rock or organic material. It also contains a cementing material that binds the sand grains together and may contain a matrix of silt- or clay-size particles that occupy the spaces between the sand grains.
Sandstone is one of the most common types of sedimentary rock and is found in sedimentary basins throughout the world. It is often mined for use as a construction material or as a raw material used in manufacturing. Sandstone forms when sand layers are buried under sediments. Ground water that moves through the sand layers carries dissolved mineralized matter which precipitates over time to bind individual sand grains into solid rock. The most common binding agents are quartz, calcite, and iron oxides. The color of sandstone is highly variable. The most common mineral in most sandstones is quartz which is colorless if pure. Hence, pure quartzose sandstone tends to be light-colored. Sandstones that contain lots of rock fragments (lithic sandstones) are often dark-colored. They are used in architecture, carving and sculpture. We are dealing into red, yellow, pink and cream coloured sandstone.