Strange rock from Russia contains 30,000 diamonds

December 17, 2014 3:22 PM

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Strange rock from Russia contains 30,000 diamonds

SAN FRANCISCO 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 to science (the diamonds' tiny size means they're worthless as gems). It was a lucky break for researchers, because the diamond-rich rock is a rare find in many ways, scientists reported Dec. 15 at the American Geophy...

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