What Does Gold Sound Like? 22k Gold 'Ping' Test [SOUND ON]

Sound on! The beautiful 'ping' test on a 50 Pesos Mexican Gold Coin! This coin contains 1.2oz of gold content and added copper alloy to increase durability of this bullion coin.
This is one simple way to test 22ct/22k gold coins, such as Gold Sovereigns, Gold Pesos, Gold Krugerrands, and other coins of or about this purity in gold.
Please note: 24ct/24k gold does not make this beautiful sound.
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