1. The friction method:
[really] pearl pearl ingredients really is mainly due to calcium carbonate, which is concentric crystalline layered (imbricate structure), and with two pearls to rub each other, rough, sand tart is a real pearl; in a quiet environment, put in the ear can hear very slight friction. The Sha Sha friction sound (in general, freshwater pearl friction than seawater pearl is stronger, the sense of weak friction seawater pearl). Attention: friction should be gentle and slightly forced, and pearl powder can be grinded, but not too much. After that, professional cleaning flannelette can be gently wiped to make it leave no trace.
A plastic film coating is used in a plastic round nucleus, a paraffin filled glass core or a shell formed by a shell. Or coated with a coat of pearls. The composition of this kind of liquid has many kinds of ingredients, and has been improved year by year. In the past, guanosine, a substance extracted from fish scale, was dissolved in (or suspended in) nitric acid fiber liquid, and then improved with aluminum carbonate crystal. Because the paint is still not really essential, Jane imbricate structure, so the two fake bead friction each other when slipping, feels very smooth, no powder. It can be said that this is the commonality of all the fake beads. The fake beads can not be grinded out of sand or powder. This method is very professional and easy to use, and it will not destroy the pearl itself.
Note: Pearl Sea pearls should be identified by professional accreditation agencies, and it is not recommended to identify them in such a way. The damage was repent.
2. Intuitionistic method:
True pearls have natural colors from inside out. There are no 2 pearls that are exactly the same in the world. In a good necklace, the color matching is always uniform. But even if the size and color match are united, the size, shape or color or skin defect will always be slightly inconsistent. We can usually see surface defects or growth texture with the naked eye (except flawless level Tahiti pearls, Nanyang pearl barely visible defects are extremely rare outside), because they are a natural product of the reason that the absolute standard is not possible as the machine mold cast out;
The shape of the bead / bead is the same size and shape, most of them are round, color or color or dull, and often have a mirror like effect on the surface. But above mentioned points, the Pearl Necklace with high quality will always have the same shape, color and lustre and mirror effect if it is carefully matched. Therefore, pearl beauty thinks that the intuitive method is very necessary for discerning enough eyesight and experience. If you still think that the shiny shiny bead is all without blight and the surface is perfect, it has been out. In fact, with the process of coating the pearl luster is deceptive, carefully identify, in addition to some fake pearl color, may also see some of the iridescent paint, some fake beads and even lathe pressure, so that the surface caused by some natural defects and texture similar to pearl. So, how can we break through the visual identification method? Because the surface of the fake bead is covered with paint and glossy, it looks greasy and greasy than the real pearl. Of course, consumers who are exposed to pearls may not understand the concept of glossy. You can look at this method carefully, in light of the place under observation, often can see the shiny needle defects, very fine, but will find that almost covers the whole surface, it is because the paint painted caused by uneven results, the coating structure and the true pearl formation structure is different, only from this point to professional judgment, look very fake". But the real pearl in addition to flaws in place, the other part of the table is not flawless face so many fine needle like defect. Then, the pressure out machine fake beads flaws but such as is false, Zhuhai if flawed, and consumers do not think so terrible not to identify, this is often the best way to identify where the real pearls defect bump scratches etc., is generally a natural transition, smooth sense. The defects of the false beads are often easily wrinkled, valgus, or uneven dents and can be seen to be scraped out by the machine. Therefore, do not think that the false beads are good deceiving, and often the "flaws" of the false beads themselves sold out.
[really] for pearl pearl necklace, pearl can observe the micropyle, smooth, clear boundary at.
[/] false imitation pearls pearl as the outer layer are pearl liquid paint or plastic film, the imitation beads, observe the micropyle Taode eye is difficult to judge, imitation pearls punch, are easy to cause the micropyle is not flat, see if there is uneven, wrinkling, valgus or damaged. This method is also a trick.
3, the hand feeling method: (in the case of contrast, we can consider this method to judge that it is not always sensitive and sensitive to the effects of cold and hot weather and body temperature).
[real pearl] hand and cool hand;
[/] false imitation pearls pearl handle relatively cool sense of soapy.
As long as the above points to identify the Pearl Necklace method, fake pearls have escaped your piercing eye!
Finally, the most important thing for pearl beauty to teach you is to buy Pearls and sell them to the brand manufacturers or businesses. They can provide authoritative jewelry identification certificates, which can be re examined, and save time and worry, and will not be cheated to buy fake pearls.