How does Hetian jade distinguish between good and bad? How to judge the quality of Hetian jade

I believe that many people are loyal fans of Hetian jade, and the preciousness of Hetian jade is undoubted, but how to identify the quality of Hetian jade in the mixed market?

First of all, observation is important. A piece of jade can be identified from the aspects of gloss, texture, brightness, etc., just like diamonds, and the difference between different gloss is also very large. There are also many black-hearted bosses who take advantage of this to deceive customers.

Secondly, if you really don't know how to look at it, you can also find a professional to identify it, or buy a special tool for measuring jade, which is okay. And if you want to buy a piece of genuine Hetian jade, it is recommended that you go to a qualified store, and the degree of trust will generally be relatively high.

Some time ago, I saw a man holding a piece of jade in a program about collectibles and asked an expert to help him identify the authenticity, according to him, this piece of jade was handed down from his ancestors, so he always thought it was a real jade, but the expert's identification results disappointed him. Because of the age of the jade, the gloss is not enough.

Finally, you can be taught some tips for identifying jade, such as weighing the weight of Hetian jade, observing the texture of jade, and even transparency, comparing jade's ** and so on.

How to identify the real and fake Hetian jade.

I think Hetian jade still depends on oiliness and density.

The better the grease of Hetian jade, the worse the whiteness, and it is too rare to be white and oily.

Jade is one thing, carvers are more important!

Hetian Wang gourd small baby material.

Look at the quality and work, see more and buy less.

Look at the density, look at the hardness, look at the whiteness, look at the lump, look at the fat content.

2. Look at the purity: The inside of a good Hetian jade is clean, there are no impurities, and it looks pure. Poor quality can see obvious impurities or impregnation inside.

3. Look at the craftsmanship: The handicrafts made of good Hetian jade are very moist and delicate, and the appearance is very exquisite. Poor quality workmanship will also be relatively rough and not fine enough.

Taking white jade as an example, milky white and green onion white are the top grades, and gray and blue are the lower colors; Some white jade is partially red or black sugar color (skin), depending on whether the use of color is valuable, such as when the color carves a beautiful pattern, its product value will be greatly increased. To see the color of Hetian jade, it should be observed under sunlight or gem grading lamps to get the correct color, while ordinary lamps (fluorescent lamps, commercial direct lights, etc.) will cast the color.

There is also the structure: structure refers to the particle size, morphology and interrelationship of the constituent minerals. Through the transparent and reflected light to observe the interior of Hetian jade jewelry, if it is difficult to see mineral particles and waterlines with the naked eye, the texture is dense and delicate; On the contrary, mineral particles and waterlines are easy to see with the naked eye, and the texture is loose.

It would be better to ask which of these two pictures is better.

<> these two figures.

Which quality will be better?

But Little Match reminds you that you need to be cautious when buying jade online.

Question: I'm fine when I look at the lights.

At present, if you cheat, you can do it.

The quality of Hetian jade can be distinguished by three aspects: texture, structure and color.

The biggest feature of Hetian jade is that the jade is warm and delicate, and the oil is good. Hetian jade is oily, and it feels as smooth as grease. The oiliness of the feel is that the jade will give people a slippery feeling when playing, but it is not completely smooth, it will have a slight resistance, that is, a ball of oil, the oil seems to melt away.

Classification of origin

According to the national standard GB T16552-2003 "Jewelry and Jade Names", Hetian jade no longer has the meaning of origin, that is, nephrite with the main mineral as tremolite can be called Hetian jade, and Hetian jade can also be called nephrite.

In addition to Xinjiang, China, there are more than 120 tremolite jade deposits in the world, distributed in more than 20 countries and regions: Russia, the United States, Brazil, Canada, Australia, Poland, New Zealand, South Korea, North Korea, Taiwan, China, etc., among which, Canada ranks second in the world. These deposits all belong to serpentine tremolite jade, mainly jasper, and white jade is produced in Russia, South Korea and North Korea, but Hetian jade in Xinjiang belongs to non-serpentine tremolite jade due to special geological formation.

The methods to identify the quality of Hetian jade are: transparency, texture, scratching glass, knife, and weight.

1. Transparency

Carefully observe Hetian jade in a place with high light intensity, you can first aim Hetian jade at the light source, and then gently shake the light, if you can see the black shadow shaking, it means that it is the best Hetian jade.

2. And paragraph texture

Hetian jade belongs to the texture of oil, and it not only has a cold feeling to the touch, but also is delicate and soft, so if it is not cold to the touch, and it is very rough, it means that it is a fake Hetian jade.

3. Scratch the glass

The hardness of Hetian jade is higher than that of glass, so you can use Hetian jade to scratch the glass, and you will find that the surface of the glass will leave scratches, on the contrary, if the glass has no scratches, it means that the fake dry shed lacks Hetian jade.

4. a knife

You can also use a small knife to scratch Hetian jade, and it can be found that Hetian jade does not leave knife marks, this is because the hardness of Hetian jade is larger, and if it can leave knife marks, it means that it is fake Hetian jade.

5. Weight

Weigh the weight of Hetian jade by hand, generally speaking, for the same volume of Hetian jade, the heavier Hetian jade is true, and the lighter Hetian jade is false.

When the constituent mineral is mainly white tremolite, the color of jade is white, i.e., white jade;When the isomorphism of iron and magnesium in actinolite in tremolite increases, Hetian jade will show different shades of blue-green, that is, green jade, green and white jade, etc. The whiteness of Hetian jade is a color category and an element used to judge the quality of Hetian jade. The beauty of Hetian jade mainly comes from delicacy and warmth.

Basically, the whiter the better, and the lack of white delicate warmth is meaningless.

2. Fineness: fineness, fineness is one of the most important quality indicators of white jade, and it is also one of the main reasons for the difference in appearance and feel of the finished product. It has two aspects: one is the size and uniformity of the crystals of the white jade particles, and the other is the fineness of the structure, that is, the fineness and uniformity of the short cloud floc.

3. Wax: Wax is a strong feeling, in fact, it is density, the higher the density, the faster the oil is produced, the better the feel. Therefore, jade has good waxy properties and looks as bright and uniform as rice, while Hetian jade has the waxy properties of jade and has a slight resistance when finished.

4. Oiliness: Oiliness includes two aspects: one is visual oiliness and luster, and the other is feel oiliness.

The higher the density, the stronger the gloss;The higher the hardness, the harder the gloss. Therefore, if the silicon oxide content is too high, the greater the rigidity of the gloss. Most of the seed polishing is after the polishing of the grease and shiny seeds.

Some other origin materials will have a vitreous luster. While it is also related to the sanding pattern, it is also related to the amount of silica in the glass. For sanding, the higher the speed of sanding, the thinner the sanding and the stronger the gloss.

Therefore, some sanders like to use cowhide to polish in oil stones, and pass when they are finished. This will appear oily, but not necessarily a good thing. Because handmade is the best oily, some sands are matte, which at first does not look greasy, but the result is better, but only if the material is good enough.

6. Oily feel: Oily feel refers to the slight resistance of the oil, just like holding a certain weight of oil in your hand and pushing it with your hand, there is a feeling that the oil will melt away. Hetian jade has a unique advantage in terms of feel.