Scientists are piecing collectively the thriller behind blue diamonds (News)


A brand new research is bringing us nearer to fixing the thriller of how blue diamonds are made.

Accounting for about 0.02 % of all diamonds, blue diamonds are the rarest diamonds on Earth, The Washington Put up defined. Whereas colorless diamonds are made up of a crystalline construction of carbon atoms on the molecular degree, blue diamonds are fashioned when that construction is interrupted by boron atoms — a uncommon impurity that has fascinated folks for lots of of years, for the reason that discovery of the Hope Diamond, the world’s most well-known blue diamond.

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Scientists have lengthy guessed at what may trigger the atomic construction of blue diamonds to alter — and for the primary time, they’ve a concept, a research revealed within the journal Nature on Wednesday reveals. Researchers analyzed the impurities trimmed away from minimize blue diamonds and found traces of minerals that time to those diamonds forming from two varieties of rock: the oceanic crust from the Earth’s floor and the ocean mantle that lies beneath it. The shifting of tectonic plates can push these two varieties of rocks collectively, creating “a match made within the abyss” that might lead diamonds to soak up the boron naturally present in seawater and thus flip blue, The Washington Put up defined.

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The findings counsel that blue diamonds kind as much as 4 occasions deeper underground than colorless diamonds — round 400 miles beneath the Earth’s floor. Whereas the idea is not confirmed but, it’s “a really compelling argument,” mentioned Jeffrey E. Put up, a curator on the Smithsonian’s Nationwide Museum of Pure Historical past. Learn extra in regards to the research at The Washington Put up.


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