Physical Properties

Coming to its physical properties, it is known to be the hardest natural material to be found. It is known to have ‘four directions of cleavage’. If it is hit in any of these four directions, diamond will break easily. Its melting point is 3820K. Its density is measured as 10 in the Mohs hardness scale. It is also an excellent thermal conductor but is a poor conductor of electricity. It can be burnt if exposed to high temperature and oxygen together. It is marked with negative electron affinity due to which it resists water but easily accepts wax, grease and other hydrocarbons.