👉 In geology, a lithophyllous rock is a type of igneous rock that is composed primarily of calcium carbonate. These rocks are often found in the upper mantle or near the surface of the Earth's crust, where they can be found in various geological formations such as metamorphic rocks, igneous rocks, and sedimentary rocks. Lithophyllous rocks have a distinctive appearance due to their distinct, irregular, and sometimes rough surface. These rocks are usually formed by the transformation of