Why does pure gold rust?

If you want to know why pure gold will rust? First of all, what is the rust on the surface of a thousand solid gold?National Jewelry, Jade and Precious Metals Testing Center on the gold surface of the

2021-07-18

What's so special about rose gold?

Rose gold is composed of pure gold + copper + silver/zinc. Due to its moderate synthesis proportion, it has the characteristics of strong ductility, high hardness, variable color and so on. In additio

2021-07-18

Understanding these knowledge, let you in the jewelry market more handy, buy to earn

很多人Many people think they know a lot about jewelry and have a lot of knowledge about jewelry, but in fact, the vast majority of people are in a vague state, just a little white jewelry. Therefore, we

2021-06-28

Rational analysis, crazy rise in the value of Hetian jade from where?

A piece of jade, is the best work of nature, even if uncarved, is also beautiful, its existence, is a simple beauty. If it is carved, it is undoubtedly more beautiful, because its body is endowed with

2021-06-28

Dry goods | how to identify the quality of jade or grade?

Looking at the current jade market, we can find that there are various types of jade, but there are many poor quality jade, so how to identify the quality of jade is a very concerned issue. How to jud

2021-06-28

What is the standard of judging seed material stand or fall?

How does the evaluation standard of seed material judge the stand or fall of a seed material? This is a lot of jade friends are very concerned about a problem. Some people think that the whiter the se

2021-06-28

Do you know how many special optical effects are beautiful and magical in jewelry and jade?

The special optical effect in jewelry and jade, friends may have seen or heard, we will talk about the special optical effect in jewelry and jade today, see how much you know.The special optical effec

2021-06-28