Knowledge: How do pearls form?

1. The formation of natural pearls Speaking of how pearls come from, I believe that everyone has heard this story since childhood: a mussel opened two shells and stretched its soft body to bask in the sun, and suddenly a grain of sand fell into it The body of the mussel quickly closed the shell, but sand one. The formation of natural pearls. When it comes to how pearls come from, I believe everyone has heard this story since childhood: a mussel opens two shells and stretches its soft body. When basking in the sun, suddenly a grain of sand fell into its body. The mussel quickly closed the shell, but the sand was buried in its body, so the mussel began to secrete nacre, covering the sand layer after layer. Many years later , A fisherman salvaged the mussel and found a beautiful pearl in it. 2. Artificial cultured pearls When artificially cultivating pearls, first select a good pearl oyster, take out the mantle inside the shell, cut into a nucleus the size of a rice grain, and implant another selected pearl oyster at the soft tissue near the gonads Cut a small opening and gently implant the prepared nucleus. 'This is called bead planting. Once the wound is healed, the pearl oyster begins to secrete nacre, which wraps the bead core layer by layer, and finally forms a pearl. '　　　　 3. How to distinguish natural pearls and cultured pearls?　　　　1. Different shapes 　　　　 natural beads (sea beads) have poor roundness due to abnormalities in the nucleus, so they have poor roundness; cultured pearls generally have round nuclei, so there are often fine round beads after they are formed.　　　　2. The core of cultured pearls with different structures is artificially made; the core of natural beads is natural quartz sand or other substances.　　　　 3. The pearl has no nucleus, the surface and the inside are the same, the pearl body is tight, delicate, and moisturized, almost translucent, but actually opaque; the cultured pearl has a nucleus, the surface and the inside are different, the skin is not smooth, there is nest skin, and the pearl body structure is loose. 4. Natural pearls (sea pearls) with different colors have fine texture, soft luster and high transparency (mostly translucent); cultured pearls have a short pearling age, loose texture and weak luster, and there are often'small bags' on the surface, commonly known as'lianzibao' 'Or'pull'.　　　　 5. Pearls are naturally formed, with irregular particles, not regular enough, fewer rounds, fewer beautiful shapes, and fewer large particles; cultured pearls are more neat, with more rounds, and more large particles.　　　　 6. Pearls are formed due to the invasion of foreign bodies. They have a long growth time, thick texture and good skin gloss; cultured pearls are artificial nucleation, with short growth time, thin nacre and poor skin gloss.　　　　7. The pattern of annual ring patterns can be seen inside and outside of the pearl hole; the inside and outside of the cultured pearl hole are different, and it is divided into two layers when viewed from the hole.　　　　 4. What kind of pearls are of high value? 1. From the color contrast: white pearls and colored pearls pearls also have colorful colors. Although people have not yet fully concluded the reasons for the color of colored pearls, the color and fertility of pearls can also be summarized from the colors of colored pearls. Their mother-of-pearl has a great connection, like golden pearls are often produced in golden lip oysters, and black pearls are produced in black butterfly oysters. Our common pearls are all white. Colored pearls are rare in the market, especially golden pearls with dazzling light. It can be seen from the contrast of colors that colored pearls are definitely worth more than white pearls. Higher. 2. From the perspective of formation: natural pearls and cultured pearls. At present, pearl jewelry can be divided into natural pearls and cultured pearls according to the formation. Cultured pearls are the pearls bred by people using artificial pearl culture technology. Due to the imperfect technology of artificial cultured pearls The quality of cultured pearls is generally different from natural pearls, and the formation conditions of natural pearls are very harsh, which also highlights the preciousness of seawater pearls. Therefore, natural pearls are slightly higher in both pearl quality and pearl value. First, but this is only a general comparison, and it does not mean that there will be no treasures with better quality than natural pearls among cultured pearls. 3. Contrast from the shape: round pearls and special-shaped pearls. The shape of natural pearls is uncontrollable during the growth process, so natural pearls will always see various shapes approaching round and oval. In the actual situation, standard round pearls are very difficult to see, so the better the roundness, the higher the value of pearls. The value of round pearls is definitely higher than that of special-shaped pearls, but some people are accustomed to the perfect appearance of pearls. , And prefer special-shaped pearls, perhaps special-shaped pearls have more unique meaning for some people. 4. Regional comparison: Seawater pearls and freshwater pearls. People often attribute freshwater pearls to cultured pearls. In fact, there are seawater pearls and freshwater pearls in natural pearls. There are also freshwater and seawater pearls in cultured pearls. Compared with seawater and freshwater pearls, deep-sea pearls are higher in quality and rarity than freshwater pearls. Coupled with the more difficult mining conditions of seawater pearls, the value of deep-sea pearls is getting higher and higher. The above is the author's summary of the information on how pearls are formed. The information comes from the Internet. If there is anything wrong, please forgive me. If you need jewelry processing, inlay, and customization, please visit the official website of jewelry inlay. Jewelry inlay will be happy to help you service!