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The World's Rarest Mineral Is So Rare It's Only Ever Been Found Once

www.sciencealert.com The World's Rarest Mineral Is So Rare It's Only Ever Been Found Once

There's a mineral so rare that only one specimen of it has ever been found in the entire world.

The World's Rarest Mineral Is So Rare It's Only Ever Been Found Once

"It's called kyawthuite (cha-too-ite), a tiny, tawny-hued grain weighing just a third of a gram (1.61 carats). On first glance, you might mistaken it for amber or topaz; but the unassuming mineral speck has value beyond measure."

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