Scientists and Philosopher Team up, Propose A New Way to Categorize Minerals
Published:30 Dec.2020    Source:Carnegie Institution for Science

A diamond lasts forever, but that doesn't mean all diamonds have a common history.

Some diamonds were formed billions of years ago in space as the carbon-rich atmospheres of dying stars expanded and cooled. In our own planet's lifetime, high-temperatures and pressures in the mantle produced the diamonds that are familiar to us as gems. 5,000 years ago, a large meteorite that struck a carbon-rich sediment on Earth produced an impact diamond.