👉 A sandrock is a type of sedimentary rock that consists primarily of calcium carbonate, or calcareous cement. It forms when calcium carbonate minerals are precipitated from seawater or lake water through a process called weathering, and it can be found in various locations around the world, including the ocean floor, lakes, and rivers. The sandrock is composed of layers of sedimentary rock that have been compressed under the force of gravity. The layers may vary in thickness and texture, with some