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a. Diamond is the hardest known naturally occuring substance. |
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Answer» Diamond is the naturally occurring hardest substance but wortzite boron nitride and lonsdaleite (comming from meteroids) are harder than diamond Diamond is currently thought to be the hardestnaturalmaterial on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness. Diamond is made up ofcarbonatoms which share strongcovalentbonds (where electrons are shared between atoms) and are equallyspacedin a lattice arrangement. |
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