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The hardest substance available on earth is
1 Platinum
2 Coal
3 Diamond
4 Gold
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Answer / bindhu
Lonsdaleite is recently found as the hardest material on earth as of 2014 according to financial express headline. Check http://www.financialexpress.com/news/diamondisnothardestmaterialonearthnow/424726
| Is This Answer Correct ? | 6 Yes | 5 No |
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3 Answers ABC, Indian Army, JSSC,
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