👉 Regolith is a type of sedimentary rock that forms from the accumulation and transformation of organic matter in the Earth's crust. It is composed primarily of minerals such as calcium carbonate, dolomite, and mica, along with other small particles like sand, silt, and clay. Regoliths are typically found at the surface of bodies of water or in areas where natural erosion has left behind deposits of sediment that have been washed away by water.