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Tuesday, June 16, 2009

Harmful substances for Diamond

These substances can scratch diamond:

  • Some diamonds are harder than others.
  • Nanocrystalline diamond aggregates produced by high-pressure high-temperature treatment of graphite or fullerite (C60).[19]
  • Cubic Boron nitride (Borazon)
  • A hexagonal form of diamond called lonsdaleite, which is theoretically predicted to be 58% stronger than diamond.[20]


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