crystal are how many years old?
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A tiny 4.4-billion-year-old crystal has been confirmed as the oldest fragment of Earth's crust.
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A tiny 4.4-billion-year-old crystal has been confirmed as the oldest fragment of Earth's crust.
Explanation:
Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in western Australia dates back to 4.4 billion years ago. "This is the oldest reliably dated piece of the Earth that we have, that anyone knows of," John Valley told CBS News...Mark Brainlist Selected my Question
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