KS8035 Graphite II (Hexagonal) Crystal Model

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Graphite, a low temperature dimorphic form of carbon, belongs to the hexagonal crystal system. Various physical properties may readily be explained from its structure. Carbon atoms are tightly arranged in hexagonal layers with distances between adjacent atoms in one layer considerably less than those of another layer. Because attractive forces between carbon atoms of different layers are weak, one layer slips easily over another. This accounts for the softness of graphite and its lubricating (greasy) properties. Graphite has a lower specific gravity than the diamond because carbon atoms are further apart. The mobility of electrons between layers is the reason for its excellent electrical conductivity.