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Strange Rock from Russia Contains 30,000 Diamonds
Here's the perfect Christmas gift for the person who has everything: A red and green rock, ornament-sized, stuffed with 30,000 teeny-tiny diamonds. The sparkly chunk was pulled from Russia's huge Udachnaya diamond mine and donated
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Rare Diamond Reveals Earth’s Interior is All Wet
A battered diamond that survived a trip from "hell" confirms a long-held theory: Earth's mantle holds an ocean's worth of water. "It's actually the confirmation that there is a very, very large amount of water
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