Evidence of Earth's first continents, 4.3-billion-year-old "diamonds" from Australia's Jack Hills, are actually fragments of polishing grit, a new study reports.
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Whoops! Earth's Oldest 'Diamonds' Actually Polishing Grit
Evidence of Earth's first continents, 4.3-billion-year-old "diamonds" from Australia's Jack Hills, are actually fragments of polishing grit, a new study reports.
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