Sediment is small, solid pieces of material that come from rocks or living things. Sediment may include shells, bones, leaves, stems, and other remains of living things. Most sedimentary rocks rocks are formed through a series of processes which are erosion, deposition, compaction, and cementation. Sedimentary rocks are formed by the deposition of mineral at the Earth's surface and within bodies of water.Sedimentary rocks are often used for glass making, chalk, paint, brick making, a base material under roads...