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The stacking pattern of the layers is ABABA…; that is, each layer separates two identically oriented layers.
As temperature rises, the rate of conversion to graphite increases substantially, and at high temperatures it becomes (thermodynamically) favourable if the pressure is sufficiently high.The distance between carbon atoms along the bond is 1.54 × 10 cm, and this is called the single-bond length.The space lattice of the diamond can be visualized as carbon atoms in puckered hexagonal (six-sided) rings that lie roughly in one plane, the natural cleavage plane of the crystal; and these sheets of hexagonal, puckered rings are stacked in such a way that the atoms in every fourth layer lie in the same position as those in the first layer. Such a crystal structure can be destroyed only by the rupture of many strong bonds.This isotope is also useful as a label in compounds that are to be analyzed by mass spectrometry, another device that is used extensively to identify atoms and molecules.Of the unstable nuclides, only carbon-14 is of sufficiently long half-life to be important.
Ready cleavage, as compared with diamond, and electrical conductivity are consequences of the crystal structure of graphite.