Large quantities of carbon can be found in the sun and in the atmosphere of most planets. Although carbon makes up less than 0.1 percent of the earth, it still forms the basis of organic chemistry and of life itself. This is due to carbon's ability to form composites with itself and with other elements such as oxygen, hydrogen and nitrogen.
Crystalline carbon is only known in five allotropic forms: graphite, diamond, fullerene, nanotube and graphene.
Types of graphite
Graphite is chemically inert, eco-friendly and absolutely safe. A differentiation is made between microcrystalline, macrocrystalline and synthetic graphite. Six hexagonally-arranged carbon atoms form the basic unit of the graphite crystal. The two-dimensional lattices are highly stable within themselves, but can be easily shifted against each other.