Diamonds are made out of carbon — highly organized carbon, that is. Geologists are still guessing how diamonds formed in the ...

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 ...

Inside a secure laboratory in New York City geologist Evan Smith is peering into billion-year-old blue diamonds to gauge the inner workings of Planet Earth. The cold, dense objects zap the warmth from ...

Blue diamonds shine with a particular allure within the cultural zeitgeist. From Titanic’s fictional “Heart of the Ocean” to the real-life, possibly cursed Hope Diamond, these hued gems have captured ...

Michael Förster was disappointed. As a Ph.D. student at Australia's Macquarie University, Förster had spent months cooking rocks in an attempt to grow the flaky, shimmery mineral mica in the lab, and ...

Most diamonds are made of carbon recycled over and over again between Earth’s surface and its crust. But diamonds with the deepest origins — such as the famed Hope Diamond — are made of carbon from a ...

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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 ...

Diamonds seem to reach Earth's surface in massive volcanic eruptions when supercontinents break up, and they form when continents come together. When you purchase through links on our site, we may ...

Blue diamonds shine with a particular allure within the cultural zeitgeist. From Titanic’s fictional “Heart of the Ocean” to the real-life, possibly cursed Hope Diamond, these hued gems have captured ...