Jadeite rough selection skills, how to pick jadeite rough

In general, domestic shopping malls or jewelry stores generally open ** very high, which has increased tenfold and twenty times. Jadeite wool is relatively much cheaper, and more than one goods, a piece of wool may be out of a few bracelets can also produce a lot of brand pendants, cost-effective.

The so-called experience is the knowledge of stones. For people who often mix in the jadeite market, the jadeite rough in their eyes is not only whether there is jadeite in it after cutting, but also a deeper level of exquisiteness, and the five common ways to play in the industry are:

Jadeite rough selection tips.

1. Guessing is mainly the field, because the stones at each field are different, and it is very important to guess the field.

2. Guess the fog The fog is a layer of unequal thickness between the outer skin and the bottom chapter, the fog should be thin, but also transparent, mainly white fog and yellow fog.

3. Guess the color of the jade jade flesh, colored is a good rough stone, mainly guess the color green, green to emerald, to more, to live.

4. Guess the crack The main guess is whether the stone is cracked, how deep the crack is, and whether it is a big crack or a small crack.

5. Guess the bottom of the bottom means the bottom chapter, the term is called the meat head, the main guess of the clarity of the bottom, the degree of thickness, if the bottom is thick, black, messy is not a good material.

6. In the process of selecting jadeite, we will look at the color and water, but the cotton wool, stone grain, and cracks of jadeite are not very clear. Because of the internal structure and texture of jadeite, if you do not accumulate experience for a long time, it is difficult to distinguish the quality of jadeite, whether it is high or low. Today, I will give you an analysis of the cotton, grain, and crack of jadeite, how to distinguish them, and what impact they have on the value of jadeite.

The identification methods of jadeite rough are as follows:

1. The identification of jadeite rough can look at the color, structure and luster. The color of natural jadeite rough is from the inside out, the color distribution is regular and natural, and the internal structure is tight and orderly, which can show a glass luster. Artificially treated jadeite, on the other hand, is unnatural in color and often exhibits a resinous or waxy luster.

2. Look at the color, identify the jadeite rough can see the color, if the jadeite rough is artificially treated, then the color distribution of the jadeite rough will look irregular, it will feel more messy, and the color will float on the surface of the rough, which looks very unnatural. The color of the natural jadeite rough is regular and natural, and the color is from the inside out.

3. Look at the structure, identify the jadeite rough can also see the structure, if the jadeite rough has been soaked in strong acid, the mineral crystals inside the rough will be dissolved, so as to produce cracks inside, then with strong light will see criss-crossing cracks. The internal structure of natural jadeite rough is tight and orderly.

4. Look at the luster, identify the jadeite rough can also see the luster, if the jadeite rough is soaked in acid, the luster on its surface will become weaker. And after the jadeite is filled with resin or other organic matter, you can see the resin luster and waxy Biyu luster. The natural jadeite rough presents a vitreous luster.

Some of the jadeite rough jade has turned to the surface, this kind of jadeite rough is relatively easy to pick, and some of the skin shells are thin and have the characteristics of hitting and returning, and experienced people can see it. But some of them are not very good-looking, and you have to cut them to know what is like Shizhou inside.

Gambling on jadeite rough is not a small risk, of course, you will make a fortune if you get it well, and if you don't get it well, you will be ruined.

There are skills such as polishing jade, being careful of the tuyere of jade, and looking at the windows opened by jade.

1. Polished jade.

Some jade raw materials have fractures or chips, and there is green with a lamp, but that one is not polished, such jade is not pure, the water is not good, and there are many cracks, so I am afraid of polishing, and all the polishing leaks out. Therefore, you can also designate a store to polish and see the loss of Hu Duan.

2. Be careful of the tuyere of jade.

The raw material of jadeite has a small tuyere, every mouth is green, such jadeite rough must be careful, if there is really more green why not in a big mouth. Therefore, it is better not to buy that kind of green, and if necessary, you can bargain according to the standard of block fees.

3. Look at the windows opened by jade.

If there is a large open window on the jadeite rough, you must look at the one that has been cut out, and then look at the elongation of the jade from the closed eyes of the jade, how to open the window, but if there is no cut part, the small one may be more green, and the remaining cloth is very green, and this material often has few opportunities to separate the green material, so it is not too expensive.

Reasons for the formation of jadeite rough:

Jadeite is a dense lumpy aggregate formed by the interweaving of countless fine fibrous mineral microcrystals, mainly jadeite. There are four main views on the formation of jadeite in nature:

1. This view is believed to be the product of the desililication of the residual granite magma that magma has invaded into the ultramafic rock under the condition of high combustion pressure.

2. This view is believed to be formed by the decomposition of primary albite into jadeite during regional metamorphism; It is also believed that under the compression-torsional stress and low temperature caused by plate collision, albite first formed bluebole schist with a low degree of metamorphism, and further metamorphosed into jadeite.

3. This view is believed to be formed by the metasomatization of granite and pale gabbro under the pressure of 12 14kPa and the action of hot water solution with high chemical potential of sodium.

4. According to the discovery of the hydromethane jadeite three-phase inclusions in jadeite rocks, it is believed that jadeite is crystallized from a near-jadeite silicate melt, and that this melt originates from the widespread alkali-bearing pyroxene layer in the mantle at 300 400 km.

The identification method of jadeite rough is as follows:

If it is artificially treated jadeite rough, such as jadeite B goods, due to the destruction of the jadeite structure, its intrinsic optical properties will also be changed, so its color distribution has no sense of hierarchy, and because of the soaking of acidic solution, the base becomes white, and the green distribution is more floating. In addition, the orientation of the original colors is also damaged, making it look very unnatural.

The jadeite rough that has been corroded by strong acid and alkali immersion will be dissolved along the mineral crystals in the surface area, resulting in internal connected fractures. In this way, under the illumination of transmitted light, the internal criss-cross cracks can be seen; Under the condition of reflected light, the surface can clearly see the dissolution pits or spider webs.

After the jadeite is soaked in strong acid and alkali, the structure is loose, and the surface of the jadeite is dissolved and pitted before the beauty filling, which makes it diffuse reflection and weaken the luster; In addition, jadeite often has resin luster, waxy luster, or glass luster mixed with resin luster and waxy luster after adding organic fillers such as resin or plastic.

Rough jadeite

It was popular in China at the end of the Qing Dynasty and the beginning of the Republic of China. Due to the high hardness of Myanmar jadeite rough, it is also known as water, clean and bright. And the good jadeite color is bright and peaceful, and has a high value preservation and collection value, so it is called "the king of jade".

It is loved by many people who love jade and wear jade. Japan and New Zealand also use jadeite as their "national stone". Due to the special geographical relationship between jadeite rough production in Myanmar, which is close to China, and the special geographical relationship of most of the finished products processed in China, coupled with the special preference of Chinese for jadeite rough, Western countries also generally believe that jadeite is China's "national jade".

The green color in Burmese jade, in addition to its bright color and very attractive, it can be worn regardless of identity, status, age and gender. Therefore, it is very in line with the reserved, peaceful, gentle and cordial character of the Chinese. The demand for society is increasing day by day.

It also grows exponentially, even hundredfold. In the international market, a brother is short of green emerald bracelets, which have reached more than 10 million yuan. Even if it is a slightly inferior Burmese jade jewelry, as long as it is a genuine A goods, it is not cheap, with exquisite craftsmanship and color coordination.

How to pick jadeite rough:

1. Judge by weighing.

The jadeite rough will generally be much heavier than the ordinary stone, and then if it is a fraud inside the jadeite rough, such as filling it with some bad small rough stones such as planting water, it will not be as heavy as the general jadeite rough. Therefore, weighing is a method that can preliminarily judge whether the jadeite rough is true or not.

2. Judge by looking at the color root of the sedan car.

Natural jadeite, especially green jadeite, will have color roots, which refers to the place where the green is very strong in the jadeite rough. Around the Rolling Roots, the green color will spread around the Roots.

Under the transmission of strong light, you can see that the green color will slowly fade or disappear in some places. However, if it is a fake jadeite rough, there will be no color roots, they may have been treated or replaced with other types of jade, so looking for color roots is also one of the ways to determine whether the rough is real or not.

3. Judge by using a magnifying glass.

If you use a magnifying glass to observe the appearance characteristics of the jadeite rough, you will observe some differences. The texture, color, structure, cracks and later filling materials of the jadeite rough can be compared with the characteristics of the previous jadeite rough, and the authenticity of the jadeite rough can be identified.

4. Judge by the sound of hitting the jadeite rough with a hard object.

The density of the real jadeite rough is very large, its structure is solid, the crystals are dense, and the sound of knocking out will be very clear and pleasant, and the sound of the whole body of the rough stone is the same lack of skin. On the contrary, if it is a fake jadeite rough, the voice will be dull, and the voice of the whole body will be different.

5. Judge by looking at the appraisal certificate.

First of all, it is necessary to see whether the number of the rough stone is consistent with the number on the certificate, and then look at the test conclusion, which will generally be written on the jadeite, and some will be followed by a note (A goods).

You can pick the jadeite rough from the following aspects:

1. Know the field.

There is a saying in the industry: if you don't know the field, you can't play jadeite. Therefore, if newcomers want to buy jadeite rough, they must first learn to identify where the jadeite rough comes from.

Knowledge points: A field entrance is a mining site composed of one or more mining sites (mining areas) in a single area. The jadeite rough in the same field has many similarities in terms of sand skin and flesh.

However, there are too many jade fields in Myanmar, and the vein layer at the mouth of the field changes too quickly, so it is impossible to accurately identify the field mouth in the short term, which requires learning to recognize the skin shell.

2. Recognize the leather shell.

The most suitable material for newcomers is half-mountain and half-water stone, which is often referred to as "water turning sand".

Knowledge points: "water turning sand" means that the sand clarity turned out of the skin shell is high, there is sand but no mud, which is the so-called sand and clean meat. It has a certain roundness in appearance, because it has undergone the sorting of water, so the skin is misty and thin, and the water head is good, and the meat quality inside is good or not.

The sand is fine, the flesh is fine; The sand is coarse, the meat is coarse; The sand is even, the meat is even; The sand is clean, the meat is clean; sandstorm, undercoat; The sand is turned over, and the bottom is bright; The sand is hard, the bottom is hard; Sand bubbles, tender bottom; Sand board, bottom wood.

This series of formulas is of great value for newcomers to judge the quality of the jade meat inside the jadeite.

I think it is necessary to select according to the type you like, for example, if you want to choose a piece of wood that floats the bracelet material, then the first I first determine whether this piece of rough stone is not the mouth of the wood, the second material has a bracelet (that is, the size, shape), and the third is to press the lamp to see if there are floating flowers, whether there are cracks, etc.! I hope my answer is helpful to you.