Strange giant diamonds give hints to the inner Earth’s composition
20th April 2017
When not pushing their left-wing agenda, Popular Science sometimes talks about science.
The largest diamonds ever mined on earth aren’t just set apart by their large size and luster, but by a unique origin story as well. They were born of metal, growing from patches of liquid iron and gas deep inside the Earth.
…
“Diamonds like [the Cullinan] have characteristics that aren’t quite the same as other kinds of diamonds. For years, geologists have wondered if maybe they formed in a slightly different way or if they came from a different part of the mantle. It’s been a lingering question that’s been really hard to tackle,” Smith says.