5 thoughts on “How to test real gold”

  1. 1. Look at the color. The higher the goldenness, the darker the color. The dark yellow golden purity is usually more than 95%, the light and yellow golden purity is between 90%and 95%, and the yellow golden purity is 80%-85% In between, the blue and yellow golden purity is between 65%-70%, and the golden purity with white light is usually 50%to 60%. So you can distinguish whether it is real gold.
    2, the weight, the density of gold is larger than the ordinary metal. The same large volume of gold, silver, and copper, gold is 40%heavier than silver, about twice the heavier than copper. Therefore, how to identify gold True and false, look at it with your hands to see if there is any obvious fall.
    3, see hardness. The more pure gold, the softened, the hardness of the hardness, the scratches can be used to use your nails. Of course, you can leave the dental mark with your teeth, and the higher the gold hardness containing other metal elements, the higher the hardness. So see how hardness is to identify the authenticity of gold and false.
    Pucting information:
    The gold adulteration level is high or low. These simple methods may not be so applicable to those "high -level" fraud. Therefore, if consumers want to be assured, they may still need to go to a professional appraisal agency for testing. If you are mixed with tungsten or tungsten in "Thousands of Gold", professional precious metal detectors can be seen.
    In addition, there is also a method of destructive detection. If the detector can withstand dozens of milligrams of loss, dissolve some gold, and send it to the high -resolution plasma mass spectrometer for destructive detection, it can also get very accurate accurate result. However, these testing requires a certain cost.
    Reference information Source:
    People's Daily-Expert Introduction to identify gold adulteration tips to see the color and listen to the sound

  2. Pay content for time limit to check for freenAnswer Hello, I am a lawyer of Baidu platform cooperation. I have received your problem. Please wait a minute.nI asked the bracelets I bought include the identification certificate and invoice of the Zhongzhen Inspection Jewelry Inspection Center. Is there a steel print on the X fluorescent spectrometer test? Is it true?nReplynnWhat is the identification?nReplynn4 morenBleak

  3. Gold identification:
    1. When the authentic is bending with the hand, it is soft and easy to bend.
    2. The gold jewelry was thrown on the floor and made a sound. The fake sound was bright and jumped higher than the real gold.
    3. The real color is dark yellow, excessive red is pseudo -gold, light color is silver, aluminum and other mixed alloy.
    4. It is really heavier and fake.
    5. It really does not change color when it is really fire.
    6. After burning red, it is quenched into the water, and the color remains unchanged.

  4. In gold jewelry, the pure gold jewelry texture is soft, the teeth are bite, and it is easy to bend. The color is golden, pure, soft, heavy, and a heavy feeling. K -gold's head jewelry texture is slightly harder, the teeth bite the use of mintes, the color is yellow in yellow, and the number of K is reduced, the white increases, and the yellow is shallow. The feel of K gold jewelry is not as heavy as pure gold jewelry. In addition, both pure gold and K gold jewelry have a printing sign. Printing on gold jewelry is used "gold" and "KG" English letters represent the texture. When indicating the gold content, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K number, such as the K gold jewelry marked "18K". Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, with a gravity of 17.4 and Mo's hardness is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold in terms of gold content. The gold content of pure gold jewelry is more than 99%, and it can reach up to 99.99%. K gold jewelry is a jewelry made of other metals (such as silver, copper metal) to its golden materials, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. K数的大小与含金量如下: 24K,99%以上;22K,91.7%;21K,87.5%;18K,75%;14K,58.5%;12K,50%;10K,41.66%;9K,37.5% 8K, 33.34% 6K, 25%

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