Copper and Silver have similar magnetic properties ### If you or someone you know would like to test metals with a Pocket Pinger, they’re available on the link in the profile, Amazon, and eBay. Disclaimer: All the risks associated with pinching a coin in between your fingers and then tapping it with plastic and/or wood are present when using the device. The ping test is used for alloy identification. Always compare the sound of a potential counterfeit with the sound of a known authentic or trust