The methods to identify the authenticity of 999 pure gold are: weighing, reading marks, reading colors, testing hardness and listening to sounds.

First, weigh yourself.

The density of gold is higher than that of metals such as zinc, copper and silver, so compared with metals with the same volume, gold feels heavy in the hand, while other metals feel light in the hand.

Second, look at the mark.

According to the national regulations, every piece of jewelry should be printed with the material mark, and the mark of pure gold 999 is G999, so you should check whether there is such a mark on the jewelry when you choose.

Third, look at the color.

Pure gold 999 has a high color and will shine brightly in the sun, which other metals do not have.

Fourth, hardness test

In ancient TV series, it is useful to identify true and false pieces by biting gold with teeth, which shows that gold has low hardness and traces can be drawn with nails. When identifying, you can see if there are any traces left by friction during transportation.

Verb (short for verb) Listen to the sound.

Real gold is thrown on the hard ground, and the sound of landing is dull, sputtering and inelastic. The higher the purity of gold, the lower the sound of landing, and the clearer and sharper the sound of fake gold, which is the sound of Dangdang and has elasticity.