Highlight the differences between Diamond and GraphiteSoluti
     Highlight the differences between Diamond and Graphite. 
  
  Solution
Diamond is the hardest mineral known to man, Graphite is one of the softest.
 * Diamond is an excellent electrical insulator, Graphite is a good conductor of electricity.
 * Diamond is the ultimate abrasive, Graphite is a very good lubricant.
 * Diamond is usually transparent, Graphite is opaque.
 * Diamond crystallizes in the Isometric system and graphite crystallizes in the hexagonal system.

