5 thoughts on “Simple method to distinguish the authenticity of gold”

  1. Differential gold requires some experience. Here are only some identification methods. (1) See color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid. (3) Look at the hardness: pure gold is soft and low. It can be used to draw light marks with nails. Teeth bite can leave dental marks. High -colored gold jewelry is low in color. It can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. (4) Listening to the sound: Throwing the real gold with more than 99 % of the color will make a tap sound, there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds. (5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with the fire (do not melt the jewelry). After cooling, observe the color change. If the surface is still the original golden color is pure gold; It is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry. (6)看标记:国产黄金饰品都是按国际标准提纯配制成的,并打上戮记,如“24k”标明“足赤”或“足金”;18k金,标明“18k”字样,成色低Those who are in LOK can not play the K -printed number according to regulations. At present, illegal elements are commonly used to manufacture fake cards and imitation stamps in the society. They use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality of the real.

  2. First, check

    1, check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully.

    2, ancient gold jewelry will not have obvious official purity logos.

    3, of course, there will also be official signs of counterfeit gold jewelry, so further inspections need to be performed.

    4, find obvious discoloration. Check the wear area of ​​the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated.

    . The bromine chemistry test

    1. Put the golden product into the alcohol solution for a small meeting.

    2. Put a piece of filter paper into the sperm solution.

    3. At this time, the filter paper becomes gray -purple.

    4, drops 4 drops of bromo -A reagent to the filter paper, if the filter paper becomes white, then this gold product is real gold.

    The test time takes 20 minutes.

    . Magnetic test

    This is a simple test, but it is not a sufficient proof to prove whether it is true gold. You can find a powerful magnet for testing.

    Gold is not a magnetic metal. If your product is attracted by magnets, it is enough to prove that this product is not gold. But you can't prove that it is gold because your product does not respond to magnets, because there are many non -magnetic metals.

    . The density test only has a very small metal density exceeding gold. The density of pure 24k gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold. Make sure your product has no additional gem.

    1. If you do not have equipment in this area, jewelry shops can usually do density testing for you.

    2, you can put your golden products in the container full of water, and then test the volume of overflowing water, and then remove the weight of your gold product, which is the density of your gold product.

    five, bite test

    1, bite gently.

    2. Check your bite marks. The deeper the bite marks, the higher the purity of the gold.

    Actually, this is a not recommended test, which will damage your teeth. What's more, the lead will be given to the gold, and the lead is softer.

    . The test method of ceramic scratch

    1. Using unlawish ceramics. If you don't have this, you can buy it from a ceramic shop.

    2. Cover your gold products with ceramics. If it is a black scratch, it means that your product is not gold. If it is a golden scratch, it proves that your product is gold.

  3. I only learned today that it is so simple and fast to distinguish the authenticity of gold and false, and tell the people around you, very accurate

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  4. 00:00 / 00: 5570% shortcut keys to describe space: Play / suspend ESC: exit full screen ↑: increase volume 10% ↓: reduced volume decrease by 10% →: single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description

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