Hardest Material

Which is the hardest material in the earth?

vrsaikumar
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Nov 11th, 2008
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shey_khar
Profile Answers by shey_khar

Dec 3rd, 2008

Diamond is the natural hardest substance known. The second hardest is silicon carbide(sic2)

mailmisterk
Profile Answers by mailmisterk

Dec 11th, 2008

diamond is the hardest material

Usman Adil
Profile Answers by Usman Adil Questions by Usman Adil

Jan 31st, 2009

first one is Diamond and the second one is cubic boron nitride(CBN)