A diamond contains the only known sample of a mineral from Earth’s mantle—and hints at oceans’ worth of water hidden deep within our planet A beautiful blue flaw in a gem-quality diamond ...

The diamond bearing the telltale mineral inclusion came from a Botswana mine and formed at depths greater than 660 kilometers, the upper boundary of Earth’s lower mantle.

Scientists estimated that the mineral formed 105 miles beneath the Earth’s surface. A single grain of rock lodged in a ...

New research resolves 40 years of debate about the strength of olivine, the most abundant mineral in the Earth's mantle. Measuring the strength of olivine is critical to understanding how strong ...

Journey to the lower mantle and back: Minerals from ocean-floor rocks are found in ultra-deep diamonds. ScienceDaily . Retrieved May 4, 2025 from www.sciencedaily.com / releases / 2011 / 09 ...

Newly discovered mineral, named davemaoite, was found encased ... over 600km deep within the Earth’s lower mantle, ... host many elements that are incompatible in upper-mantle minerals. ...

Typically, deep-Earth minerals reform as they are pushed from the mantle and towards the crust, but this mineral hitched a ride in a diamond, reports Carolyn Gramling for Science News.

The Earth's mantle transition zone contains water locked up in minerals — enough to rival the oceans on the surface of the planet.

Olivine makes up about 70 percent of the Earth’s upper mantle, ... “Without any expectation, we found the ringwoodite mineral in this diamond.

Minerals within the transition region of the mantle from 410-660 km depth could contain the majority of our planet’s water and acted to control surface waters over geologic time. Researchers have ...

New research led by the University of Delaware's Jessica Warren resolves 40 years of debate about the strength of olivine, the most abundant mineral in the Earth's mantle. Measuring the strength ...