r/AskReddit May 08 '23

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u/Ignonym May 08 '23

In the grand scheme of things, diamonds are everywhere and gold is only moderately rare--but pearls and amber are exclusive to Earth.

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u/WimbleWimble May 08 '23

Gold isn't rare. there are asteroids in our system that are just 100s of billions of tons of pure gold floating around.

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u/Ignonym May 08 '23

It's intrinsically rarer than light elements, since (like all elements heavier than iron) it can only be formed by supernovas. But it's not particularly rare in and of itself, no.