testing acid

garviso8

Jr. Member
Joined
Aug 10, 2014
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Location
hialeah fl
Detector(s) used
minelab safari/cz-21 /bounty hunter quick draw
Primary Interest:
All Treasure Hunting
would it be possible to get a negative reading on silver if it has been coated with rhodium plating my sterling chain I just bought is reading negative but jeweler says its real ?maybe my acid went bad?.
 

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