The difference between true and false gambling stones

The sale of jade stone is the most mysterious trade in the jewelry industry. Her mystery lies in the word "gambling", so the buyer has the saying of gambling jade and gambling.

Many old pits often have a layer of hull on the surface. Due to oxidation, the husk has become brownish red, brownish black or various other variegated colors. Generally, it is only from the outside, and it cannot be seen at a glance. Even today, when science is bright, there is no instrument that can quickly determine whether it is “Baoyu” or “Breaking” through this shell.

Those who buy jade must judge the value of this jade from the rough stone with the hull (sometimes also open a "window" on the skin, which means rubbing off the small hull to reveal the jade). This process of buying and selling is a process in which the buyer and the seller have a look at the jade. It is said that after the Myanmar jade merchants gambled on the stone, when they really cut the processing, they generally did not dare to be present in person, but burned incense nearby and asked God to bless. If there are many green and sleek greens in the cut gambling stone, you can become a rich man in one night, which is called "gambling up"; if you cut the gambling stone, it is essentially a grayish white sand head. It will be ruined overnight, and the jargon is called "slack."

Since the Qing Dynasty, jade has become a high-end jade species that Chinese people love. It is also a variety of jadeite products from the Qing Dynasty. The jade, dyed, twilight, etc., which have been poorly filled, have begun to appear on the market.

Therefore, in addition to explaining the complexity and variety of jadeite varieties, the phrase “Jade without expertism” also shows the wisdom and variety of various pseudo-techniques, especially the development of modern science, which makes some counterfeits reach the point of realism, even if it is Sometimes there are times when experts fall "eyes".

1, the identification of fake jade

When it comes to fraud, the first is the original stone fraud. Because raw materials are often gambling trades, stimulating, risky, and the original stone has a husk, so the method of falsification is often hidden and difficult to distinguish, summarized as follows:

(1) Skinning. Emerald gambling stones often look at the texture from the window. Some unscrupulous people use this feature to grind some jadeite into sand powder, mix it in a special "glue", glue to some textures, and even The jade stone that has been cut to prove to be a low-grade stone has been re-disguised as a natural material such as black sand and yellow salt sand for profit.

(2) Dyeing and coloring. There are many ways to dye and color. The first is to chemically process the whole raw material, dye it into green dye, and make the skin color turn green to improve the grade of jade. Some stones are also partially faded after dyeing to cause uneven color or not a particularly good appearance, but in fact this has also improved the grade a lot. The second is to inject some green dye into the oblique hole in some jade with better head, but the color is poor, then seal it and open the “door” (window) on it, so that the buyer can see the interior of the jade is very green from the window. The potential value is large, thereby increasing the selling price.

(3) Transfer flowers and wood. One method is to cut some high-grade jade materials, take out the essence, then fill in the inferior scraps, re-gluing, and planting fake skin. The second method is to cut some inferior materials from the middle or any position, put or clip a small piece of green jade or green glass, and then re-gluing. The skin is planted and the window is opened nearby to create a high color illusion.

(4) Fill with the fake. Use other low-grade jade such as Malay jade, Dushan jade, Qinghai jade and even marble to surface treatment, and then use it as a special jade material.

Some of the above methods of fraud are only listed one or two, and there will be many changes in practice. The most important and effective way to avoid being fooled is to be careful not to be expert. Of course, mastering some skills is still needed.

First of all, for any raw material with skin, you need to carefully look at the skin of the whole piece of jade. If it is natural stone skin, the color, crystal and structure of the whole will be different. Even slight differences, such as cracks and flaws, must be different. Be careful if the skin is extremely uniform. You may wish to gently tap the skin of the jade (subject to the permission of the seller). If it is leather, it will usually fall off in powder form; if it is fake skin, it may fall off in a sheet.

When buying jade, you can't just look at the window. The window is usually the best part of jade. In addition to the window part, you must also look at the state of the nearby skin and whether there is adhesion.

Second, carefully observe the color of the whole piece of jade. Natural gemstones, the whole piece of green is very consistent, the green color of the window can be carefully observed with light and observed with a Chelsea filter. If the green color turns red under the Chelsea filter, it is color and color. If you can ask the seller to show the cut window cover at the same time, it is best to compare it. However, it should be noted that as the dyeing method becomes more and more sophisticated, the red material under the color filter does not necessarily indicate that it is natural.

If the surface of the jade is green or silky, it is mostly colored stone.

Again, carefully observe the texture of jade. If the jade is extremely delicate, there is no stone flower or crystal flash (flying wing shape), then you should be careful whether it is a product such as Malay jade.

2, the choice of true jade

If it is true jade, then where do you judge its value? As mentioned above, because the formation conditions of jadeite are complex and diverse, the different pits, jade shells and jade changes are different, so it can be said that there is no magic weapon to distinguish, only by experience plus luck. Some of the experiences of the predecessors are:

(1) Large jade opens a small window, which generally contains many cracks, so be careful.

(2) For cracks and ridges, it should be observed to see if it is connected. If it is connected together, it must be cracked. A large piece of material can only count up to two or a few small pieces.

(3) “Ning buy a line, don’t buy a piece”, saying that a line of green (visible on both sides of the stone) tends to have more potential than patchy irregular green, because the line is green as it passes through It means that there must be green inside, but the irregular green does not necessarily indicate that there is green inside. It is possible that green is only distributed near the epidermis and may disappear in the stone.

(4) The material of the rough skin is called “Pisong”, and the interior is also rough inside. However, some of the materials in the pits sometimes have high green. This is the so-called “high green in the shit”. The skin-tight material is also finer in structure, and the water head and the land are generally better.

It is worth noting that the experience is often the general case. It is not easy to achieve "one hundred and one hundred". Practice and careful observation are extremely important. In particular, the jade of some factories often have their own characteristics. Trying to master these characteristics is crucial to whether you can buy good jade.

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