About four or five years ago, the reporter found a cheap and precious "gem" in the antique market. The beads were milky white and the color was lustrous. The string of more than one hundred beads was also 200 yuan. Later, the store told the store. My name is "ç —ç£²". At that time, I felt that it was something in the sea. It was so cheap. I bought a big string when I was happy. I didn’t expect to be despised by my colleagues when I got the unit. She took out a bunch of better shackles and told me that this price is even more Cheap, it is tens of dollars. The reporter was shocked! Dozens of dollars, that is, a processing fee, is such a beautiful thing so worthless? Colleagues told me that this kind of thing is very cheap in Hainan. People who don't understand it feel mysterious. In fact, it is just a kind of shell. Later, during the wearing process, I felt that the hardness was not high, it was easy to be corroded, and it looked very beautiful. It was really difficult to collect as a collection. Since the second half of this year, the market has become hot, and it has become a new favorite in the market. The reporter said that he will be suspicious. Is it really worth collecting? One of the hidden concerns: the lack of support for the market A few days ago, the reporter visited the main jewellery and jade merchants in Beijing and learned that more than half of the shops have enamel products for sale, with bracelets, bracelets and bracelets more common. Generally, the beaded products are still within a few hundred yuan. The more expensive ones are the fine jade, one gram is tens of dollars, and one piece of art with a height of about 8 cm is 700 yuan. A merchant told reporters: "Four years ago, about 1 meter of shellfish raw materials sold for two or three thousand yuan, now, the same size of shells can be sold for 30,000 yuan." He also revealed that there is a large wave of fishermen and processors in Tanmen Town, Qionghai City, Hainan Province. Together with the locals, the local army has nearly 100,000 people. It is said that the raw materials have risen four or five times in the past five years. "At present, the average price is about 3,000 yuan per ton. The quality of each piece is already five or six thousand yuan or even tens of thousands, and the top ones are dozens of dozens. Ten thousand yuan." The reporter learned that the general enamel raw materials are often made into beads, and the good ones are carved into craft ornaments. After these beads are jeweled into pieces, they are sold at several times the price. Take the most common ç —ç£² bracelet as an example. The cost of raw materials and batch processing is only a dozen yuan. If it is sent to Beijing, Shanghai and other places, the price is above 400 yuan, which is generally 10 times higher than the wholesale price. At a trade fair in 2013, a piece of enamel carving was sold for 100,000 yuan, which caused quite a stir in the industry. This niche gems gradually became unpopular and became a popular collection. Is there a collection value in the end? Yi Shuangting, secretary general of Xinjiang Baoyu Stone Association, said: "The valuable gemstones need to have three conditions: aesthetics, durability and rarity. ç —ç£² is a shell fossil, its main component is calcium carbonate, the hardness can reach up to four points. Many, its chemical properties are not very stable, it is easily corroded by acids and alkalis, and its durability is poor. However, because of its own aesthetics and rarity, it has a certain value." As for the rise of the market, some experts have expressed doubts: the price of cockroaches is already very high. If there are more people who like this variety, plus artificial speculation, there may be a false high price, and consumers are easy. quilt. The second worry: intensive fishing leads to depletion of resources It is understood that ç —ç£² belongs to the shellfish family and is the largest of the marine shells. The growth cycle of cockroaches is often one or two hundred years, the weight can reach more than 500 kilograms, and the outer shell of the cockroach is white and white. It is a high-quality material for making crafts. The history of human use of cockroaches is very early. The scorpion and gold, silver, agate, coral, glaze, and amber are called the seven treasures of Buddhism. The Tibet region of China has always used the tradition of processing fossils into beads. In general, ç —ç£² as a collection refers to jade ç —ç£², and the enamel products directly processed from living shells have no collection value. The reporter learned through the access to the information that the shells of the cockroaches have to go through a long period of time to be engraved. It is impossible to make them jade for decades or hundreds of years. Many cockroaches often go through hundreds of thousands of years to become jade. Some cockroaches have experienced thousands of years of seawater scouring but have become unsuitable for engraving because of locusts. This shows the rareness of the nobles. At present, most of the common cockroaches we see on the market are processed from living shells. Such products can only be used as accessories, and have no collection value. The high-quality jade raw materials and handicrafts, one or two pieces can be found in a thousand pieces, even if it is good, mostly semi-yellow and unyellow. In addition, due to factors such as hardness and toughness, artificially farmed alfalfa is not suitable for processing into craft jewelry, only natural tannins can be used. As early as 1983, the Convention on International Trade in Endangered Species of Wild Fauna and Flora listed the world as a rare marine organism, but in the list of key aquatic wildlife protections in China, only Kuh’s was listed as a national level. Protect marine life. It is this kind of loophole that leaves an illegal business owner with an opportunity to take advantage of it. The relevant person in charge of the Institute of Oceanology of the Chinese Academy of Sciences said that cockroaches are widely distributed in Xisha and Nansha Islands in China. At present, due to high-density fishing, it is difficult to see large cockroaches in the sea areas of these places. The third worry: the quality standard is difficult to define As a collectible gem, the current industry standards are not clear, and the fraud caused by interest is the biggest problem that plagues consumers. During the reporter's visit, it was found that the standard of ç —ç£² quality is very vague, jade, semi-玉玉, white peony, scutellaria, and golden silk enamel. The price of each kind is different. A merchant told reporters that at present, the three standards of “textureâ€, “crack†and “worm eye†are five grades for bismuth raw materials, of which 5A is the highest, and 5A refers to the watery and jade-like water head like Hetian jade. Yuhua. The high-grade jade is pure, white and delicate. It can be measured by the standard of Hetian jade. First of all, the structure should be fine, and it has the same growth pattern as the tree rings. The high-grade jade can not be seen under natural light. To the grain, you can only see the unique silky texture under the illumination of the light; secondly, it is better not to have cracks when looking at the degree of lubrication; thirdly, there is no insect eye, and the insect eye is attacked by microorganisms during the process of the jade. The insect eye does not harm the entire structure, but it will affect the quality of the raw materials. In addition to the material, but also look at the craft and styling, these three points are indispensable. Because the raw materials are sufficient, the value is not as high as everyone thinks. At present, no one has faked raw materials. If it is to be faked, the cost may be higher than the direct use of raw materials. Need to be reminded that because Yuhua is sought after, some unscrupulous merchants use Afghan jade to take the liberty. In this regard, experts remind consumers: Afghan jade is a marble, the main component is calcium carbonate, its hardness is similar to that of jade. Afghan jade has a large reserves of mineral deposits all over the world, but the value of jade is very low. It is generally used only as a stone for architectural decoration. Only the highest quality Afghan jade can be used for crafts, but with jade. The value of 磲 is also an underground one. Therefore, consumers who like you must understand a little bit of introductory knowledge, and choose to buy in a reputable business, it is best to collect in a normal heart, not blindly chasing the wind. Buy and see "four eyes" Look at the crack After several years of growth, natural cockroaches will have annual ring patterns on the surface, and the thickness, direction, and length of the lines are not in order. Observed under the magnifying glass, there is a yellow luster around the lines of natural enamel; the imitation enamel is often crushed and pressed with ordinary shells, and will be put into the gel when pressed, so the surface is smooth and there is no annual ring pattern. Look at the structure The natural enamel has a layered structure with a single layer thickness of 0.5 mm to 1.5 mm, and the layer is clear and dense; the imitation enamel has no such structure. Look at color Natural enamel has white, ivory, brown and other colors, very few enamel with purple, pink, purple and other colors, and the luster is naturally translucent; the color of the imitation enamel is mostly snow white, the surface is polished and shiny, the color is dull . Look at hardness The hardness of natural enamel is generally 2.5 degrees to 3 degrees, and some varieties can reach 4 degrees; the hardness of imitation enamel is below 2 degrees, which is lower than natural ç —ç£². Tc Twill Fabric,Heavy Twill Fabric,Polyester Twill Fabric,Anti Static Twill Fabric Shaoxing Yingcheng Textile Co.,Ltd , https://www.sxyingcheng.com