Graphite is a form of carbon, and its chemical formula is simply C. This means it is composed entirely of carbon atoms. Graphite has a unique structure where carbon atoms are arranged in layers. Each layer consists of carbon atoms bonded together in a hexagonal lattice. These layers are held together by weak van der Waals forces, allowing them to slide over each other easily. This structure gives graphite its characteristic properties, such as being a good conductor of electricity and having a slippery feel.