Thread: Just found a 25+ year old Gold Necklace.
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Old 07-24-2011, 08:39 AM  
brassmonkey
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Quote:
Originally Posted by JFK View Post
If they use 18k acid on 14k metal on a touchstone, it will burn it off. If they put the 18k acid on 14 metal straight it will make it turn brown, or its burning it, Testing gold by acid is a process of deduction, but you also have to know what you are doing
go old skool and just bite it.
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