Gambling gambling, how to gamble
The gambling stone is often dominated by gambling, and the gambling is positive. In addition, there are gambling species, the species should be good, the species should be old, and the species should be alive; the gambling land is gambling on the fineness of the land, water, and cleanness; and whether the gambling cracks, the gambling fog, and the gambling are flawed. It’s hard to gamble, so people say “ten gambling and losingâ€.
How to gamble
It is mainly realized by three methods of rubbing, cutting and grinding. Therefore, how to rub, how deep it is, how big it is, and even if it can be rubbed must be considered clearly. Cut stone is also the same, you can cut the rich, you can also cut the poor, the jargon has "the rise is not counted up, the rise is only considered up." Whether you can cut, how to cut, you must rely on your experience and luck. Grinding is to see the color and water inside, and the quality of the grinding is also very particular.
Looking at the crystallization of the leather material, in general, the jadeite gravel coarse leather material is large, the structure is soft, the hardness is low, and the transparency is poor, which is the product of the jadeite. Fine leather has fine crystal structure, compact structure, fine texture, high hardness and good transparency. Among them, it is better to have black or black and red. This kind of abortion is called "dogs and eggs", mostly in the middle and upper grades of jade. The properties of sand leather are between the former two, and the quality changes greatly, but there is no shortage of good materials, so the "gambling" is the strongest.
Check the crystal size of the leather, in addition to the visual eye, you can also check with water. The method is to take the jade gravel in the water and take it out to see how fast the water on the skin is dry. If it is dry, it indicates that the crystal is coarse, the structure is loose, or the crack has many pores and the texture is poor. On the contrary, it shows that the crystal is fine, the structure is dense, and the texture is good.
View green
The quality of green and the quality of the color determine the quality and value of jade. Therefore, it is necessary to pay attention to the state of green inside by observing various signs revealed on the epidermis by the green part of the gravel. The amount of green is related to the shape and distribution characteristics of the green part.
The green part of the jadeite is more valuable in the form of clusters and strips. When such green color is exposed to the epidermis, it is often in the form of a cluster or a line, and sometimes it is in the form of a sheet. When green appears on the epidermis as a large-area sheet, it is mostly epidermal green, and its interior is often green-free. When green appears linear or lumps on the epidermis, especially when the green lines exposed on the epidermis are symmetrically distributed. At the time, its green will extend to the inside, even through the entire gravel. The latter's value is naturally higher than the former. Therefore, there is a jargon that says "Ning buy a line, not buy a piece." The green color is related to the green mineral composition. In general, the color of jade is better than the green color of diopside, calcite and neon. Jadeite has high hardness and strong weathering resistance. Therefore, it is expressed on the outer skin, mostly relative to the protrusion, and other minerals are relatively concave. The former is more valuable than the latter, so the jargon has the saying that "buy a drum, don't buy one." The "drum" means that the green color appears in the bulging part, and the "ç˜ " is the green color appearing in the concave part.
View crack
In addition to skin discrimination and color discrimination, in the evaluation of jadeite raw materials, we must also pay attention to the development of cracks (commonly known as cleft palate). Of course, the crack is as small as possible. In the jade raw material market, in order to display the texture and color of the jade, the jade merchant often cuts off the outer skin and smoothes the incision. This kind of cut mouth is called "door". In order to make more money, the jade merchants try their best to open the door to the place where the texture and color of the gambling stone can be displayed. Therefore, when evaluating the door, we must carefully check the situation of the door and the surrounding area for comprehensive comparison and analysis. Don't overestimate the green color displayed by the door.
Beware of counterfeiting and fraud
Because jade has obvious unevenness, color and texture have great changes and differences, its authenticity and good and bad are difficult for ordinary people to grasp, and the value between the pros and cons is different, and the raw material transaction is stronger. The "gambling", some unscrupulous traders often make unscrupulous profits on jade materials. For example, if the texture and green displayed after cutting the door are not ideal, they will stick it in the door with a good jade, deceive the buyer, and so on.
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