Answers

2014-03-13T20:23:49+08:00
Diamond is the hardest mineral because atoms bond in a network,with atoms bonding  to all other atoms surrounding them making the mineral strong bonded and hard to break .....oh and diamonds can only break diamonds :)
2 3 2
  • jia
  • Helping Hand
2014-03-13T20:31:36+08:00
It is the hardest because of it's chemical make-up. It's made of carbon and carbon - atoms fit very well to each other.
0