Why do pearls become suede, yellow, and dark?
Pearls give each wearer a gentle and generous temperament, but it is very delicate! As a result, many people dare not buy it easily. They are afraid that after wearing for a while, the pearl will be long-lost. Isn’t it bought in white? Its common ugly direction mainly has the following aspects. 1, pearl crack Some pearls have been worn for a while, and the surface is like a suede. It looks crumpled and ugly. There are two reasons for this situation. One is the reason for the pearl itself, and the other is that you may buy fake goods. What are the reasons for the pearl itself? Some of them have nuclear pearls (sea pearls, Edison pearls in freshwater pearls), and because of their eager harvest, the birth time is too short and the nacre is too thin, which makes it easy to "skin." Really ugly, I can’t wear it completely. The nacre is very important for pearls, second only to the color and luster of the pearl, which directly affects its durability and aesthetics. Pearls with thin nacres will have longevity To provide you with a clear data: China's seawater pearls, the thickness of the bead layer is about 0.2-0.3MM; Japan's AKOYA pearls, about 0.4-0.6MM. A small but strong AKOYA pearl The thickness of the bead layer of Tahitian pearl is about 0.8MM or more; while the South Sea pearl is the best, the thickness of the bead layer is basically above 1.2MM. Outstanding South Yangzhu In addition, you can use strong light to illuminate the pearl. If the pearl shows its ribbon structure, don't buy it! This shows that its nacre is very thin. What are the reasons for buying fakes? Pearl peel, the biggest possibility is that you bought fakes! In all likelihood, the fake pearls are coated, that is, the beads or plastic beads that are made of shells. For the sake of deafness, the profiteers will Coat their surfaces with a film similar to pearl luster. However, this film is not natural after all. After a while, it will peel off and it looks like the pearls. Compared to natural pearls that are prone to disintegration, Chanel's fake pearls will always maintain a delicate luster. In order to achieve this, Coco Chanel invited the most famous and technically superior Gripoix workshop to escort Chanel. Therefore, these fake pearls, from the perspective of craftsmanship and design, are indeed called "luxury goods". 2, the pearl turns yellow The main components of pearls are calcium carbonate, water (about 90% calcium carbonate and 4% water), while the large calcium carbonate is mainly in the form of "aragonite", but this material is unstable and easy to air. Oxidation occurs, causing the appearance of the pearl to change from a smooth white to a dull yellow, which is the main reason for the yellowing of the pearl. SHAOXING OCEAN CO., LTD , https://www.sxgarments.com
