At 4.4 Billion Years Old, This Is The Oldest Piece Of Earth Ever Found
At 4.4 Billion Years Old, This Is The Oldest Piece Of Earth Ever Found
www.geologyin.com At 4.4 Billion Years Old, This Is The Oldest Piece Of Earth Ever Found
Zircons are the oldest known materials on our planet. They offer a window in time back as far as 4.4 billion years ago, when the planet was ...
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Here's the Wikipedia article on these billions year old crystals: https://en.wikipedia.org/wiki/Hadean_zircon
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