A story on fake gold

[alvin]

Originally Posted by sheepherder

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Don't worry. It happened in Nanking, not upper state of New York But I am not sure how coin collectors checking their items. In imagination, coin is harder to fake than jewelry -- jewelry does not have a fixed pattern, so you cannot tell its fake or not by its appearance. If it's yellow, heavy, soft, and not tarnishing under fire... what else it can be? Obviously, there are lots of tricks in that business.

[Edit] BTW, here is ruthenium. It's also the first time I heard of this kind of metal so I looked it up in wiki:

http://en.wikipedia.org/wiki/Rutheni...a_half_bar.jpg