A new study uncovers how volatile-rich magmas propel diamond-bearing kimberlites from Earth’s depths. If you’ve ever admired a diamond, chances are it originated from a kimberlite. More than 70% of ...

“A diamond is forever.” That iconic slogan, coined for a highly successful advertising campaign in the 1940s, sold the gemstones as a symbol of eternal commitment and unity. But our new research, ...

During a spontaneous stop to celebrate a birthday in southwest Arkansas, an Oklahoma family uncovered something far beyond ...

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 ...

Crater of Diamonds, which sits on the eroded top of a volcanic pipe, is the eighth largest diamond deposit in the world. It is one of only two active diamond mines in the United States and is the only ...

Twenty years ago, deep beneath Botswana’s Kalahari desert, Thomas Gernon found himself walking in what seemed like hell. The temperature soared as the sound of explosions echoed off the walls. “It was ...

The breakup of supercontinents may trigger explosive eruptions that send fountains of diamonds shooting up to Earth's surface. Diamonds form deep in Earth's crust, approximately 93 miles (150 ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Michael Poland, geophysicist with the ...

For more than a quarter-century, he's returned numerous times a year to this ancient volcanic crater snuggled in the vine-draped hills of southwest Arkansas. Using a metal washing drum and a series of ...