If the jade you bought is discolored, you should buy chemically treated B goods.
Natural Burmese jadeite, pure in color, transparent and very rare, is called A-goods, and the price is quite expensive. There is another kind, the color is not very pure, there are mottled and impurities, this kind is called C goods.
Therefore, some manufacturers use special chemicals to purify the color of C goods and use certain processes to remove noise. This kind is called B. On the surface, goods B are as pure as goods A, but after all, they have been treated by chemical methods. After a long time, due to oxidation, chemical reactions will occur and the color will change.
Some black-hearted jade merchants rumor that jade can adsorb harmful substances in the human body, so it will change color when worn, that is, suck out the dirty things in the body. In fact, the chemically treated B goods are sold as natural jade.
Identification of goods b and c:
Goods B refer to jadeite processed into ornaments by chemical glue injection, thus changing the germplasm of jadeite, turning ordinary opaque jade into transparent jade, thus destroying the internal structure of jadeite and making jadeite lose its natural spirituality, so goods B are a typical example of shoddy. Emerald B is a kind of jadeite that has been soaked in strong acid, removed impurities and filled with glue. B Jade is also called "shower" jade, and its texture is fake. After being soaked in strong acid, the jadeite is soaked with dirty impurities, but at the same time, the texture of jadeite is completely destroyed, soft and full of gaps, without the toughness of jadeite. In order to be invisible in appearance, transparent silica gel is added in the gap. Therefore, B jadeite looks beautiful in color and transparent in texture, but the price is very low, which is often about one tenth of A jadeite with the same appearance. The reason why many people accidentally buy B goods is that B goods often look good and cheap. However, B Emerald can't stand the test of time. Generally, after a few years, silica gel is oxidized, and jadeite will become unrecognizable. People in the jewelry industry once said that B jadeite is also genuine, and it can only be said that it has undergone some treatment. If consumers are willing to buy, that's their choice. But I don't agree with this view, because B-grade jadeite is a low-grade raw material that is not enough for jewelry, and it is processed by destructive means to pretend to be high-grade jadeite, and most buyers buy it when they think they have bought the real thing (A-grade jadeite), so it can't be said that B-grade jadeite specially used to pretend to be high-grade genuine jade is the real thing. The three elements of jewelry are beauty, durability and rarity, but B jade does not have these three elements, so B jade is not real but fake.
1, c goods are jadeite artificially dyed and artificially colored on originally colorless jadeite. Its color is fake, fake. There are many ways to dye jadeite. Most of them first heat jadeite to enlarge the gap between crystal particles, and then put some dye into it to make the color enter jadeite along the gap. The dyed colors are mostly green, purple, yellow and red.
2.B+C goods are processed by the method of B goods, and green pigment is injected at the same time of chemical glue injection, which makes the germplasm and color of jade very beautiful. The so-called jadeite jade formed by this method is more difficult to distinguish, and it is typical to confuse the fake with the real. In a professional jewelry appraisal office, goods B and C are easy to identify, but is there a particularly simple and easy identification method for laymen? Objectively speaking, it takes many years of experience to identify B-goods and C-goods jadeite. As a layman, there are no clever tricks to use. A consultant once asked if it was possible to distinguish the true from the false by burning hair on jade. It is said that I learned this in a jewelry store in a tourist attraction. This method is unscientific and has no scientific basis. Using this method to identify jade will make people who buy jade suffer.
3, D goods refers to the material itself is not jade but pretending to be jade. Some are glass, which is worthless, and some are jade or timely, which has certain value. Because of the high value of jadeite, it is fake jadeite, which is called jadeite D goods. The jadeite that ordinary jadeite impersonates has low hardness, low density and weak luster. The substitutes made of green glass and green plastic are mostly dull and ugly, and their luster is very weak. The relative density is very light, the hardness is low, and there is no cold feeling.
Identification method:
1, and observe whether there are impurities. Because jadeite is formed in nature, there will be some impurities, such as black, yellow or gray, if it is A goods, but there are few impurities in the treated B goods because other strong acids corrode.
2, look at the color root. The so-called color root refers to a little bit or a thin, slightly dark green in jade ornaments, and these slightly dark green gradually transition to relatively light green, which is called color root. The color and foundation of natural jade A goods are natural and generous, and the green is distributed in roots or blocks, with clear and clear outline. The color root of treated B jadeite is blurred, and the color and bottom are smeared like traditional Chinese painting, showing spots, black spots or fragments floating. Most of them show this green color on gray or green fields.
3, look at the luster. The luster of a commodity is generally a strong glass luster. B goods have a dull luster, which generally looks like wax or resin luster. The surface and shallow parts are more transparent, and the more turbid they are.
4. Look at the surface. Looking at it with a high magnification magnifying glass, the surface of goods A is smooth and delicate. It can be seen that different mineral particles have tiny protrusions and intersecting lines on their surfaces due to their different hardness. For poor quality A goods, the grooves caused by poor polishing usually only appear in local positions, especially the depressions that are not easy to polish. The surface of B goods is disordered, with straight lines, cobweb-like and dendritic grooves, and the surface has orange peel-like structure due to different hardness. Handling strong B goods, the surface cracks.
5. Look at jade. The so-called emerald is a structure in which fiber crystals and porphyritic crystals are intertwined. You can see a star-shaped, needle-shaped or flaky flashing surface, also known as flying wing, which is a very important feature of jadeite and an important symbol for distinguishing between true and false jadeite. However, the identification of goods A and B cannot be completely used as identification evidence, which depends on the situation. In general, the quality of commodity A is obvious. Goods B were damaged during handling, but the green color was blurred. However, if the degree of acid treatment is slight, the green color can still be seen and obvious.
6. Look at the color. Mainly from two aspects, first, the color of C goods is cleverly added, and the colorless places are not added, and the colored places are bold, which creates an illusion and is easy to be deceived; The second is the feeling at first sight. Artificial coloring is different from natural colors after all. At first glance, you should pay attention to the unnatural color of jade.
7. touch. Natural jade A has a cold glass texture to the touch. The treated jadeite B and C goods feel greasy to the touch.
8. Listen. When the natural jadeite A goods collide with the A goods, it will make a crisp and pleasant sound, accompanied by an echo. The sound made by B goods when they collide with each other is dull.
9. For the jadeite of B goods, you need to turn the jadeite to find an angle where you can clearly see the reflection on the surface of the jadeite. Looking closely, we can see that there are many potholes on the surface of B goods, which are formed after the surface silica gel is weathered, worn and peeled off. In addition, the luster of B jadeite is different from that of A jadeite. Jadeite has a compact structure and a glassy appearance. Due to the glue injection, the appearance of B jadeite is waxy luster.
10, c jadeite, in the case of looking at the light, if you carefully observe the color distribution of jadeite, you can often see that the color is distributed along the cracks. This color distribution is unnatural and looks like capillaries. Seeing this situation, we can conclude that the color does not naturally exist in jade, but enters from the outside. In addition, the dyed color has no color root and often floats on the surface of jade, and the color is also "dead" and "dim", without the aura of natural color.
1 1? Simple naked eye identification method: ① water identification method: drop a drop of water on jade, if it becomes dew, it is real jade; It's not the goods that quickly disappear. (2) Tongue licking method: the real jade on the tip of the tongue feels astringent; Fake jade has no astringency. (3) Inspection method: aim the jade at a bright place, such as sunlight and light. If the color is clear and the green is evenly distributed, it is a real jade.