Diamond from deep within Earth found, holds unprecedented mineral

Analysis of a diamond that formed 410 miles deep within Earth's crust has revealed a never-before-seen mineral trapped inside.

Published Fri, Nov 12 2021 2:33 AM CST   |   Updated Tue, Dec 7 2021 9:11 PM CST

Researchers have penned a new study that reveals the discovery of a rare mineral that forms under extremely high pressure and high temperature in Earth's mantle.

Diamond from deep within Earth found, holds unprecedented mineral 01 | TweakTown.com

The mineral that was found is called davemaoite, after the geophysicist Ho-kwang (Dave) Mao, and forms in the solid layer of Earth that is between the crust and the core. Researchers have suspected that there would be quite a lot of davemaoite but have never found any due to the mineral breaking down into other minerals as it moves closer to the surface. However, researchers examined a diamond from Botswana that is estimated to have formed 410 miles below the surface revealed some davemaoite trapped inside.

Oliver Tschauner, a mineralogist at the University of Nevada, Las Vegas, and lead author on the study, said to LiveScience, "The discovery of davemaoite came as a surprise". Tschauner explains that the discovery of davemaoite within the diamond suggests that diamonds can form much deeper in Earth's mantle than previously thought and that looking at this depth for more minerals of the mantle may be a viable option for further research.

Additionally, Yingwei Fe, a geophysicist at the Carnegie Institution for Science in Washington, D.C, commented on the results of the study (wasn't involved), and said, "The work by Tschauner et al. inspires hope in the discovery of other difficult high-pressure phases in nature. Such direct sampling of the inaccessible lower mantle would fill our knowledge gap in chemical composition of the entire mantle of our planet."

For more information on this story, check out this link here.

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Jak joined the TweakTown team in 2017 and has since reviewed 100s of new tech products and kept us informed daily on the latest science and space news. Jak's love for science, space, and technology, and, more specifically, PC gaming, began at 10 years old. It was the day his dad showed him how to play Age of Empires on an old Compaq PC. Ever since that day, Jak fell in love with games and the progression of the technology industry in all its forms. Instead of typical FPS, Jak holds a very special spot in his heart for RTS games.

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