**The easiest way to check the authenticity.
* is a valuable and precious metal, so it is very important to distinguish between true and fake. Here are some simple and easy ways to test the authenticity of the truth to help you quickly determine the authenticity.
1.Observe the appearance.
The appearance of true ** usually presents a unique color and texture, showing a soft yellow or red yellow, and the surface has a certain luster. If the surface is too smooth or has other unusual colors, it may be false or specially treated.
2.Weight and hardness.
The higher the purity, the softer the texture and the better the ductility, so its authenticity can be judged by feeling the weight and hardness of the **. Generally speaking, the real ** is heavier, and the hardness is relatively low, making it easy to bend. If it is too heavy or too hard, it may be an alloy doped with other metals.
3.Magnetic test.
*It is a non-magnetic metal, so its authenticity can be identified by magnetic testing. Place a magnet on the surface, if it is attracted or has a magnetic reaction, then it is likely to be false.
4.Fire method.
When a small piece of pure gold is placed on a fire and heated, the real pure gold will gradually turn red and release white smoke, which will still return to its original shape when cooled. If it changes color or deforms after heating, it may be false** or not of high purity**.
5.Sound and bounce.
The sound of landing on the ground with higher purity is more dull, while the sound of false **or metal-doped **landing is more crisp. At the same time, the ** with high purity has better elasticity and the bounce height is relatively high, while the false ** has a lower bounce.
6.Hardness and bite test.
The higher the purity, the lower the hardness, and its authenticity can be identified by the bite test. Gently bite a small piece of ** with your teeth, if it leaves a visible bite mark, it may be false** or not of high purity**.
7.Chemical reagent testing.
A small piece of pure gold is put into an acidic chemical reagent, such as nitric acid, hydrochloric acid, etc., and real pure gold does not undergo chemical reactions. If it reacts with an acid or changes color, it may be false or not of high purity.
It should be noted that although these simple methods can help us identify some basic authenticity and fake**, they may not be able to accurately determine the more advanced methods of counterfeiting. Therefore, for high-value products or a large number of transactions, it is recommended to seek the help of a professional appraisal agency.