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https://www.sbcgold.com/blog/test-gold-5-simple-ways-spot-fake-gold/
Jul 24, 2014 · Genuine gold will stand up to your attempt to conduct a nitric acid test at home. Make a tiny mark on the piece of gold to penetrate the surface. Drop a small amount of liquid nitric acid on that scratch and wait for a chemical reaction. Fake gold will immediately turn green where the acid is.
https://www.oxfordgoldgroup.com/articles/how-to-test-gold-if-real/
Aug 11, 2020 · The Gold Acid Test By far the most accurate and well-known test you can do at home, the gold acid test should be completely safe for jewelry and bullion that claims a high percentage of gold content. This is mostly reserved for non-decorative investments because some light scratching might occur on the gold’s surface.Estimated Reading Time: 8 mins
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