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Originally Posted by shadoquad
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Hahaha! That is AWESOME!
On a serious note, when I went to a dealer to buy gold coins, I learned about how gold can be weighed and measured to ensure that it is legit. Apparently no other metal has the exact density of gold, so if a coin is actually gold, it will have a precise weight related to its circumference and thickness.
I guess they do the same thing with nuggets, although that would seem to be a bit more difficult, due the irregular surface/sizing.