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Hardest Substance

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shenoy | 16:44 Fri 07th Dec 2001 | How it Works
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What is the hardest substance known to Mankind?
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Avatar Image incitatus
Scales of measurement are difficult, but tantalum is normally quoted here.
09:12 Mon 10th Dec 2001
Avatar Image coemgen
diamonds
19:19 Sun 16th Dec 2001

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Hardest Substance

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