Diamonds are chemically similar to another form of carbon, graphite, which is dark, soft and conducts electricity. In ...

Researchers have discovered a pattern where diamonds explode from deep beneath the Earth’s surface in huge, volcanic “fountains.” Diamonds form approximately 90 miles deep in the Earth’s crust and are ...

A new study offers clues to the mysteries of kimberlite eruptions, the source of most of the diamonds mined on Earth today. By Maya Wei-Haas While diamonds might look pretty perched atop a ring, the ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Over 70 percent of the world’s diamonds are mined from kimberlite ...

If you've ever held or beheld a diamond, there's a good chance it came from a kimberlite. Over 70% of the world's diamonds are mined from these unique volcanic structures. Yet despite decades of study ...

Nearly two decades ago, a dogged geologist named Charles Fipke was practically down to his last nickel. He and a fellow prospector, Stewart Blusson, had been crisscrossing the vast frozen hinterland ...

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 ...