Gold can be distinguished by color, and different colors of gold are also different. When gold is red-yellow or yellow-red, the gold content can generally reach 90%. To 95% of gold, while the gold content of yellow is generally above 80%, while that of turquoise is around 70%.

2. Sound discrimination:

Gold can be distinguished by sound. When gold is hit and thrown, it will have a dull and low voice, which is less elastic. If it's flexible, do it. If the sound is long and sharp, accompanied by clanging, it means it is fake gold.

3. Hardness identification:

Gold can be distinguished by its hardness. Generally, the hardness of gold is relatively low. Scratching with a pin or nail may cause scratches. Moreover, when gold is bent, there will be wrinkles, usually fish scales, otherwise it is fake gold.