Fortune Telling Collection - Comprehensive fortune-telling - What is the easiest way to identify gold?

What is the easiest way to identify gold?

1, observation method

By carefully checking whether the gold ornaments have the characteristics of real gold.

Looking for official signs. The mark will show the purity of gold (1-999 or 0. 1-0.999) or the carat number (10K, 14K, 18K, 22K or 24K). You can see more clearly with a magnifying glass. However, the marks on the old gold ware may be worn off, and the fake gold may also have marks, because further verification is needed.

See if the gold has faded. It is very important to check whether the parts (especially the edges) where the gold wares are easy to wear have faded. If the gold ware is faded and the faded part reveals the color of other metals, then your gold ware may only be gold-plated.

Step 2 bite

This simple and effective method is generally not recommended because it may cause damage to teeth. In addition, because lead is softer than gold, there will be bite marks on the gold-plated lead, which will lead to identification errors. Use appropriate force to bite the gold device. See if there are any bite marks on the gold. Theoretically, real gold will leave bite marks after being bitten, and the deeper the bite marks, the higher the purity of gold.

3. Magnet attraction method

Absorb gold with a magnet. Gold is not a magnetic metal, so if a magnet can attract gold, it is fake. But the fact that it can't be attracted by magnets alone can't prove that this gold object is real, because it may also be made of other non-magnetic metals.

4, scraping porcelain plate method

This is a good way to expose fake gold, but your gold ware may be scratched. Find an unglazed porcelain plate. If not, you can go to the store to buy any porcelain. Scrape the porcelain board with gold. If there are black scratches on the porcelain plate, your gold ware is not real gold. If the scratches are gold, it is real gold.

5, nitric acid test method

Nitric acid test is a good way to identify the authenticity of gold. However, because the nitric acid used in this experiment is not easy to obtain and it is dangerous to do this experiment at home, it is difficult to use it at home. If you use this method for identification, you should pay attention to safety.