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Diamonds Are a Geologist’s Best Friend

Scientists solve a secret of the Earth’s crust with the help of a gem

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@krhignett

SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/GETTY; SCIENCE PHOTO LIBRARY/GETTY
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About Newsweek International

SIX MORE YEARS It was close to midnight on March 18th and a triumphant Vladimir Putin stood at a podium at his campaign headquarters near Red Square. Dressed in a jacket and open-necked shirt, Russia’s longtime leader looked weary but satisfied. He had just secured a fourth presidential term in a landslide election, extending his rule for another six years, until 2024 and maybe beyond. What will that mean for America and the world?