January 11, 2013

Earth's Oldest Mineral Has Mighty Story to Tell

Robert Krulwich, NPR


AP Photo

It's hard to imagine how this teeny little rock — it's not even a whole rock, it's just a grain, a miniscule droplet of mineral barely the thickness of a human hair — could rewrite the history of our planet. But that's what seems to be happening.

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TAGGED: Life, Earth, Titanium, Zircons

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