1, look at the color, the higher the purity of gold jewelry, the darker the color;
2, weighing, gold jewelry should feel heavy in your hand, while fake gold jewelry feels light;
3, listen to the sound, the purity of more than 99% of real gold thrown on the hard ground will make a snapping sound, no rhythm, no elasticity. Fake or low-quality gold sounds crisp and dull, generally making a "Dangdang" sound, with a lingering sound, and violently beating after landing;
4. Look at these marks. Domestic gold ornaments are purified and prepared according to international standards and marked with seals. For example, "24K" means "all red" or "pure gold", and 18K gold means "18K".
There are high and low levels of gold adulteration in the extended data, so the simple method may not be suitable for those "high levels" of fraud. Therefore, if consumers want to ask for peace of mind, they may still need to go to a professional appraisal agency for testing.
If "thousands of gold" is doped with iridium or tungsten, a professional precious metal detector can see it. In addition, there is a destructive testing method. If the tester can bear the loss of tens of milligrams, dissolve some gold and send it to a high-resolution plasma mass spectrometer for destructive testing, he can also get very accurate results. However, these tests all need to bear a certain cost.
If the motivation for buying gold is investment, it doesn't matter whether there must be physical gold. Consumers can also consider some alternatives.
For example, paper gold is a kind of personal voucher gold. Investors buy and sell "virtual" gold on the books according to the bank quotation. Individuals earn the fluctuating price difference of gold by grasping the trend of international gold price. Investors' transaction records are only reflected in the "gold passbook account" opened by individuals in advance, and there is no cash withdrawal and delivery of real money and silver.
People's Daily Online-Experts introduce the tricks to distinguish gold adulteration, look at the color and listen to the sound.