How do you test your gold? I just did the ping test on these coins and they failed. I bought from a reputable dealer online. How do you test your coins?

The Pocket Pinger w/ Stack Stick - Coin Ping Test

The Pocket Pinger - (Black) - Portable and works with all size coins. From the 1/10 AGE all the way to a 10ozt beast. This simple device allows for

The Pocket Pinger + Stack Stick, Coin Ping Test (Black, 1 Pack)

Coin Ping Test - British Sovereign vs 1/4 American Gold Eagle. Is

How to Know If Gold is Fake or Real

USA Silver Coin Tester (Morgan, Peace, Franklin

The Pocket Pinger

2 ways to spot this Real Silver - Fake Morgan Dollar

Just inherited these coins- I think they are real Gold- they pass the

How to test gold coins at home right now, 5 tests

4 Ways to Tell if Gold Is Real - wikiHow

How To Tell If Gold Is Real, 5 Simple Tests

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USA Silver Coin Tester (Morgan, Peace, Franklin

Pingcoin - Apps on Google Play

A tungsten filled counterfiet American Gold Eagle. The coin weighs