Video: Are we standing on a quadrillion tons of diamonds?

diamond
This is a collection of 0.02, 0.03 and 0.04 carat solitaire diamonds weighing in total 5.36 carats. Credit: Swamibu/Wikipedia

There might be a quadrillion tons of diamonds 100 miles below Earth's surface.

But the farthest we've traveled is 7 miles down, so how could we know that?

Credit: American Chemical Society and PBS Digital Studios

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Citation: Video: Are we standing on a quadrillion tons of diamonds? (2021, September 15) retrieved 24 October 2021 from https://phys.org/news/2021-09-video-quadrillion-tons-diamonds.html
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