Graphite in the graphite crystal, the carbon atoms in the same layer sp2 hybrid form a covalent bond, each carbon atom covalently linked to three with three other atoms. Six carbon atoms in the same plane as the formation of a regular six-shaped ring again and again, stretching into a lamellar structure, where the CC bond length are all 142pm, this is just part of the bond length range atomic crystals, so for the same layer, the It is the atomic crystal. Carbon atoms in the same plane but also each of the remaining one p orbital, they overlap each other. Electronic relatively free, equivalent metal free electrons, so the graphite can be thermally and electrically conductive, which is characteristic of metal crystals. Therefore classified as a metal crystal. Chemical composition of graphite is carbon (C). Natural output is rarely pure graphite, often contain 10% to 20% of impurities, including SiO2, Al2O3, MgO, CaO, P2O5, CuO, V2O5, H2O, S, FeO and H, N, CO2, CH4, NH3, etc. Graphite iron minerals were black, steel gray, shiny black streaks; metallic graphite milk, hidden polycrystalline aggregates glossy dark graphite milk prices, opaque; {0001} cleavage completely, hardness anisotropy with high carbon graphite, vertical cleavage surface 3-5, parallel cleavage plane is 1 to 2; soft, density of 2.09 ~ 2.23g / cm3, a greasy feel, easily contaminated fingers. Graphite milk prices | North Sea Dragon Carbon | graphite provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.