Jadeite is known as the "king of jade", and its status in jewelry and collectibles has not been shaken for many years. Many people have a special liking for jade and like everything about jade. It is precisely because of this love that many unknown things on the market are now called jadeite, constantly impacting the jadeite market. This is a headache for many jade lovers. They like jade but dare not buy it because they may accidentally buy defective goods. These "jadeites" will bring losses to whoever buys them, so open your eyes and get to know them together! Indian jadeite is actually a kind of jade produced in India, which is what we often call "aventurine", and its scientific name is "aventurine". Indian jade is currently known to have two colors: red and green. Green aventurine is often used to impersonate jade. The base color of aventurine is oily green and not correct. Because it contains micro-grains and pyrite inside, there are some bright spots on the surface of aventurine. Identification: ① Look at the luster: Natural jadeite generally has a glassy luster, but the glassy luster of aventurine is relatively weak, and it looks like a layer of fog on it, foggy. ② Look at the jadeite quality: The jadeite quality of jadeite refers to the reflection of the jadeite mineral surface that can be directly observed on the surface of jadeite, also known as "fly wings". Hard jadeite has no jadeite quality. ③Weigh the weight: The density of aventurine is 2.65, and that of jadeite is 3.33, so jadeite is much lighter than aventurine. This is what we can feel by weighing it. Guatemalan jadeite may be relatively unfamiliar to everyone. It is a new jade variety discovered in Guatemala. Its characteristics and appearance are very similar to jadeite, so it is called Guatemalan jadeite. The characteristics of Guatemalan jade are: refractive index of 1.68, density of 3.32, and the fiber interweaving structure is also very similar to jade, so many appraisal agencies also issue certificates for A-grade jade. But in fact, the quality of Guatemalan jade is much worse than that of Burmese jade. Its material is very thin and very easy to break. It is recommended that you do not buy it. Identification: ① Look at the color: Although Guatemalan jade is high green, it often has many black spots and the color will be a bit dark, but the green of natural jade is very positive. ② Look at the thickness: The material of Guatemalan jade is very thin, so some unscrupulous merchants will hollow out the back to enhance the green color of the jade. Because if the Guatemalan jade is too dark, the jade will turn black. Guatemalan jade is usually used for decoration and inlay. Ice jade only became popular in the past two years. It has nothing to do with jadeite; it is purely glass! Ice jade is impersonated by green glass products. It looks somewhat similar to the top-grade full green glass jade, so some unscrupulous merchants use ice jade to make profits under the name of jade. Identification: ① Physical characteristics: The properties of "Ice Jade" and "Glassware" are similar, with a hardness of 6, a relative density of 2.4-2.5, and a refractive index of 1.5, which are very different from jadeite. ② Observe the inside: Many glass products have some small bubbles inside, but jade does not. ③ Look at the jadeite quality: Glass definitely does not have jadeite quality, so as long as no reflection is observed on the surface of jadeite, it is definitely not jadeite, but it does not mean it is ice jadeite. There are three kinds of jade. When you hear the name, do you want to laugh? I hope you won’t encounter them in the future, otherwise you will have no choice but to cry. The 83rd type of jade is more common in the market. This jade is a new variety of jade mined in Myanmar. Because it was unearthed on the edge of the jadeite mine, it was named jadeite. Although 83 Jade is also jadeite, it is only a companion mineral of jade. It has no water head and a rough structure. However, it should be noted that most of the 83 jadeite on the market has been acid-washed, so it looks relatively transparent. Moreover, many processed 83 jadeite have floating flowers on the surface, and many people who are looking for a bargain can easily be "tricked". Identification: ① Look at the color: B3 jade is acid-washed, so its color is yellowish, and it is often inlaid with green, dark green and dark green blocks in cloud-like and dip-like shapes, just like the floating flowers of jade, but such "floating flowers" are relatively messy and have a floating feeling. ② Look at the texture: Although the processed B3 Jade is very similar to jadeite, there are still differences in texture and some physical properties. The texture of B3 Jade is poor, the hardness is relatively low, and the density and refractive index are lower than jadeite. This can be judged through the jade identification certificate. ③ Look at the structure: The transparency and crystal grains of the raw stone of B3 jade are very different from those of jadeite. It has large crystal grains and few cracks and is generally opaque. The B3 jadeite that has been optimized is generally translucent. Although the 83 jadeite looks very watery, its structure is incomplete, with many lines and invisible cracks. ④ Listen to the sound: The internal structure of the acid-washed 83 jadeite will be relatively loose, so when it is knocked, its sound will be dull rather than crisp. Everyone knows that the more pure and uniform the color of green jade is, the higher the price will be. Some vendors have evil ideas for the sake of money. They coat a very thin green film on the surface of jade to make the color of jade more pure and uniform, and use it to impersonate high-end green jade. It is worth noting that coated jade is different from B-grade and C-grade jade within the scope of acid pickling and dyeing, so it is easy to issue an A-grade certificate. For novices, being deceived can be a matter of minutes. After coating, the jade has the color of natural green jade. Because it is coated with a colloidal substance, it also has a special luster. When the merchants shine a light on it when selling it, it is easy for people to mistake it for high-end green jade. Identification: ① Touch with your hands: Although dressing jade looks similar to high-end jade, it still has flaws. The easiest way is to touch it with your hands. Natural jade feels cool and smooth, but when you touch fabric jade with your hands, it will feel sticky and rough. ②Observation with the naked eye: Careful observation of the processed coated jadeite reveals tiny wrinkles and cracks on its surface. However, they are difficult to identify even with the naked eye with a keen eye, and you need to use a magnifying glass or microscope. You can also use a knife to scrape the surface of the jadeite to see! Some of the jadeite injected and dyed are top-quality materials, while the other part is dyed and injected with glue. Because a complete piece of good jadeite is rare, the cost of this kind of yin-yang jadeite is not high, but it is often used to impersonate high-end jadeite. We can only say that the people who created this counterfeiting method are very smart. When we take this jade for testing, if only the natural material part is detected, we can still issue an A-grade jade certificate. The other side is fake and has been dyed and other treatments. Therefore, if you look closely at the surface of the jade, you will find that there is an unnatural transition in color and gloss in the middle. The jade filled with glue does not have the watery and translucent appearance of natural jade. Identification: ①Observation with the naked eye: Dyed jadeite undergoes special chemical treatment and its surface usually has residual pits and acid etching marks, and the color is dull and not lively. ② Magnifying glass: After being treated with acid and then injected with glue, the mineral structure of the jade cannot be seen. When observed under a high-power magnifying glass, the acid etching marks will be more obvious. At the same time, you will find that the structure of the injected and dyed jade is abnormally loose, and no jade properties can be seen! There are many merchants in the market who sell fake jade as high-end jade to make huge profits. Over time, more and more people have been deceived. Everyone is more or less wary of high-priced jade, and this is when fake mid- and low-end jade appears. Although the quality is not high, mid- and low-end jade is affordable for the vast majority of consumers. Fake jade that is colored with polishing powder is simply low-quality colorless jade that is colored in green and purple, and then sold at a moderate price, which is not value for money. Identification: ①Observation with the naked eye: Under light, residual traces of polishing powder can be observed in the jade dyed with it. When observing samples with brightly colored polishing powder with the naked eye, one can see that the color is concentrated in the form of dots, nets, and flakes between the cracks on the surface of the jade, and is scattered in large quantities along the concentrated cracks. ② Check the certificate: Check the certificate note column to see if there is: "XX color polishing powder can be seen on the sample surface" ③ With the help of alcohol: The main component of polishing powder is actually a kind of talcum powder. The dye can only adhere to the surface of jade and cannot penetrate into the inside. Therefore, if you wipe it with cotton cloth dipped in alcohol, the color will fall off, which will not happen with natural jade. The so-called pad color jade refers to a colorless jade product with good transparency that is painted green on the back, and then the dyed side is inlaid into a metal frame without windows. This counterfeiting method is difficult for consumers to detect without careful observation, and they may even buy pad color jade as high ice type. Identification: ① Look at the color: The color of pad-colored jade is dull and impure, without a sense of layering. Its luster is relatively dull, and there are cracks on the color surface. The sound made by the collision of two cushion-colored jade bracelets is also rather dull. ② Magnifying glass: Because cushion-colored jade contains small bubbles that are difficult to be found, it needs to be observed with the help of a magnifying glass. By magnifying the observation, you can see the wax products in the cracks or small bubbles in the liquid. ③ Use a knife: Natural jade has a high hardness, so scratching its surface with a knife will not be destructive. However, if you use a knife to scratch the cushion-colored jade, the membrane on its surface will easily fall off. Jade is very beautiful and you will fall in love with it at first sight, but you must be careful of fake jade, otherwise it will be too late to cry when the time comes. fcgc66 fcpf18
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