A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

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The graphite found in your favorite pencil could have instead been the diamond your mother always wears. What made the difference? Researchers are finding out. How molten carbon crystallizes into ...

Diamonds present at the birth of the Okavango Delta have a lasting connection to this landscape and are playing a unique role in its conservation today. 3:41 Geological time and tectonic forces have ...