Infrared radiation Electromagnetic radiation, which is longer than red visible light is, called infrared radiation. Infrared radiation is synonymous with heat. A mineral is a natural substance that is crystalline, inorganic and has a unique chemical structure. A rock may be make up of one or more minerals. A substance may have a chemical name, a rock name and also a mineral name.
Limestone is a rock.
Its chemical name is calcium carbonate, which indicates that it is composed of the chemical elements of calcium., carbon, and oxygen. Its mineral name is calcite. Most rocks are made up of more than one mineral. Mineralogical characteristics include hardness, reactivity with chemicals, color, luster, and density, crystal shape and crystal size. 0 O is the chemical symbol for oxygen.