At present, some booths selling Baoyu in the market are often mixed with some exquisite artificial jade. The more reliable identification methods are: seeing, listening and testing.
Look, mainly depends on the crystal transparency, real jade has strong transparency and oily luster;
Listen, Zhen Yu's voice is crisp, but her voice is dull;
In the test, the real jade scratched the glass, but the jade itself was intact.
Common fake jade includes plastic, stained glass, marble, electrochromic fake jade made of jade powder and crystal with salt water, imitation jade containing nitrate, etc. And their identification methods are different.
Plastic is lighter than jade, and its hardness is poor, so it is generally easy to identify.
It's easy to distinguish between painting and getting off work. As long as you take it under the light or check it in the sun, you will see many bubbles in the glass.
It is difficult to distinguish fake jade by electric color. Its purpose is to electroplate inferior jade and then coat it with a beautiful emerald appearance, so it is easy to mistake it for real jade. At this time, you need to observe carefully. If there are some small cracks with blue in the green, it is fake jade. Because electroplating will leave cracks, experts call it "spider claws". It is also said that if the electro-colored fake jade is put in hot oil, the electroplating color will fade and return to its original color.
Synthetic jade made of jade powder, crystal and salt water is an imitation dark old pit jade. The identification method is simple, that is, their specific gravity is different. The specific gravity of natural jade is 3.3-3.4, while that of synthetic jade is only 2.8. Weigh by hand, or use a balance to distinguish between true and false.
Jade imitated with nitrate looks whiter and smoother than jade. The ancients said, "Jade is better than salt, so it must be high." That is, white jade should be as advanced as nitrate. It can be seen that nitrate and jade are difficult to distinguish. However, the facts are different after all. As far as color is concerned, white jade is often blue, and white is rare, while nitrate is pure white. As far as jade is concerned, jade is moist and delicate, as fat as cream. Nitrate is wet, but there are thieves in it. White jade is a natural product, and it is difficult to have a unified structure, including jade ribs and jade flowers. If nitrates are manufactured artificially, there is no such appearance. White jade has a solid texture and no bubbles can be found. No matter how well nitrate is treated, bubbles and pores are often exposed. If you know these items, you won't regard nitrate products as jade articles.
Discrimination of jadeware authenticity
Emerald is expensive, and the selection technology is very demanding. It is difficult for most consumers to distinguish its advantages and disadvantages, and it is easy to buy inferior products or fakes with a little carelessness and suffer huge economic losses.
There are many jade shops in the market, and jade articles are generally divided into nephrite and jadeite. Emerald is also called emerald. Academically speaking, nephrite is a silicate containing calcium, magnesium and iron; Jadeite is a silicate containing sodium and aluminum. Here are the advantages and disadvantages of jadeite, and the methods to distinguish between true and false:
Water identification method drops a drop of water on jade, and if it becomes dew, it is real jade; The water droplets disappear quickly, which is a fake.
Touch it with your hands. If it is real jade, it will feel cold and lubricated.
In the inspection method, jade objects face bright places, such as sunlight and lights. If the color is clear and the green is evenly distributed, it is a real jade.
The tongue licking method has a astringent feeling on the tip of the tongue; Fake jade has no astringency.
Magnifier Watch the purchased jadeite under the magnifying glass, mainly to see if there are cracks. The jade without cracks is the best quality, followed by cracks. Even if it is real jade, the value of cracks is greatly reduced. The more cracks, the more obvious and the lower the value.
Question 2: How to tell the authenticity of a jade bracelet? How to judge the authenticity of a jade bracelet by yourself?
1. Look at the flaws on the jade bracelet.
Usually, natural jade bracelets have some impurities and defects. If it's too clean and cheap, be careful that it's fake. Because natural jadeite is not too cheap.
2. Look at the color of the jade bracelet
If the jade bracelet is all green, the price is only a few hundred thousand yuan, which can basically be judged as a fake jade bracelet. The green jade bracelet has many impurities and is opaque, and the price should be above 5000. Jade bracelets are colorful and varied. When you buy them, you must look carefully and don't be confused by superficial phenomena.
On-line Identification of Emerald Bracelets
Some consumers don't know whether their jade bracelets are true or not, so they will post photos of their jade bracelets on major forums and ask experienced experts to help them identify them. However, it should be reminded that the photos taken must be taken in a bright place, preferably in the midday sun, so that experts can judge the quality of jade bracelets more accurately.
Method for judging the authenticity of authentication certificate 1. The formal quality inspection certificate of jewelry and jade issued by the testing institution must be tested by a nationally recognized testing institution. Therefore, any one of cma, cal and acl will be printed on the authentication certificate.
2. Inspector's registration and signature. The quality inspection certificate of jewelry and jade issued by the formal national organization will be signed by two people, one of whom is signed by China people and the national jade quality inspector (registered). The registration is within the validity period, and the signature cannot be stamped, so the inspection certificate has legal effect.
3. All inspection columns in the inspection certificate must be printed by computer, not by hand.
Question 3: How to distinguish the authenticity of jade bracelets?
Emerald is expensive, and the selection technology is very demanding. It is difficult for most consumers to distinguish its advantages and disadvantages, and it is easy to buy inferior products or fakes with a little carelessness and suffer huge economic losses. There are many jade shops in the market, and jade articles are generally divided into nephrite and jadeite. Emerald is also called emerald. Academically speaking, nephrite is a silicate containing calcium, magnesium and iron; Jadeite is a silicate containing sodium and aluminum.
Here are the advantages and disadvantages of jadeite, and the methods to distinguish between true and false:
Identification method of water → Drop a drop of water on jade, if it is dewdrop-shaped, it is real jade; The water droplets disappear quickly, which is a fake.
Touch by hand → Real jade will feel cold and lubricated if touched by hand.
Inspection method → Put jade in bright places such as sunshine and light. If the color is clear and the green is evenly distributed, it is a real jade.
Licking the tongue → licking the real jade with the tip of the tongue has a astringent feeling; Fake jade has no astringency.
Magnifier viewing method → put the purchased jade under a magnifying glass to watch, mainly whether there are cracks. The jade without cracks is the best quality jade, followed by cracks. Even if it is real jade, the value of cracks is greatly reduced. The more cracks, the more obvious and the lower the value.
Question 4: What do you think of jade bracelets? What does jadeite think of true and false? The most important thing for a bracelet is to see whether it is clean, flawed and cracked. If it is a pendant crack, it is not a particularly big problem, because it can be hidden by carving design. The crack of the bracelet can't be hidden, and it is easy to break when it collides.
Secondly, it depends on the seed head, color and the size of the ring.
As for the authenticity of the tripod, there are actually very few fake jade. Of the three most widely circulated A.B.C goods in the market, A is pure natural, while the latter two are artificially treated and jade, but they are easy to fade or change after being taken for a long time.
On the issue of identification, it is not difficult for people in the industry to identify ABC goods at a glance, so it is best to identify them or buy them with people in the industry.
I would like to remind you here that if some bracelets are particularly beautiful in color, highly transparent and flawless, but only need hundreds or thousands of pieces, don't buy them. Under normal circumstances, they should not be A goods.
In Yangmei Village, Jieyang, this is all A goods.
Question 5: How to identify the authenticity of jade bracelets? From the chemical composition, nephrite is a silicate containing calcium, magnesium and iron, while jadeite is a silicate containing sodium and aluminum. Here are some common methods to identify true and false jade articles: (1) Water identification method Drop a drop of water on jade articles. If it is dewdrop-shaped, it is real jade. (2) If the touch method is real jade, it will feel cold and lubricated by hand. (3) When jade is observed in light, the true jade is clear in color and evenly distributed in green. (4) The tip of the tongue identifies that the real jade on the tip of the tongue has astringency and the fake jade does not. You can also observe it with a magnifying glass, mainly to see if there are cracks, and the value of cracks is greatly reduced. There are six criteria to identify the quality of jade, namely "color, transparency, uniformity, shape, percussion and luster". (1) Jade is the best, and the value of red and purple jade is only 1/5 of jade. If jade contains red, purple, green and white, it is called "Fulu Xi Shou"; If it only contains red, green and white, it is "Fu Lushou". The dull and yellow ones are inferior. If it is monochrome jade, the color is better. (2) Transparent and crystal clear as glass, without dirty spots, chaff and astringency is the top grade. Translucent and opaque jade are called intermediate jade and ordinary jade respectively. Before and during the Qing Dynasty, jade with red, green and white colors was called jadeite. In modern times, jadeite refers to generally transparent jade. (3) The color of jade is uniform. Although it contains white and green, the color is uneven and its value is very low. (4) Special-shaped jade can be processed into different styles according to different aesthetic requirements, and there is no special standard. (5) Cracks and cuts are common when knocking on jade, which are generally not easy to observe. If you knock with a metal bar or throw jade gently on the table, you can tell whether there is a crack from the clarity of the sound. The louder, the better. (6) There are black spots and flaws in jade that are not easy to be found by naked eyes. As long as you take pictures with a magnifying glass of 10 times, you can have a panoramic view. The general methods to identify fake jade are watching, listening and testing. (1) Look at the transparency, internal structure and luster of the crystal. Real jade is transparent, oily and shiny, with natural patterns, and the internal fiber state is not easy to imitate. (2) Listen to the sound, the real jade is crisp, and the fake jade is dull. (3) Hardness measurement. With the glass plate (friction hardness of 5.5) as the standard, except jadeite and turquoise, stripes can generally be drawn on the glass plate, and jadeite itself is complete. Fake jade is generally soft and can't scrape the glass. Common fake jade is generally made of plastic and glass. They are all amorphous materials with low hardness and low density, and they are also the essential characteristics of materials. Plastic, for example, can be picked with a steel needle or floated gently in your hand. Glass bubbles in light or sunlight, and is amorphous under polarizer (there is no periodic change of light and shade when rotating), and there are raw materials for making vortex stripes, etc.
Question 6: I just bought a jade bracelet today. If you have an appraisal certificate, you can check the relevant information on the website of the appraisal institution. If the information and certificate information on the appraisal agency's website are consistent with the physical information, it should be genuine, but the price of genuine jade bracelets is not necessarily high. The price of jadeite is based on the water color of jadeite and other factors, and the price of some genuine products is not necessarily high.
Question 7: How to identify the authenticity of jade bracelets? 20 points jadeite identification
1. Glossy appearance: whether it is translucent or opaque, real jade has a warm luster, and it is normal to have a small amount of impurities or cotton-wool patterns inside; Fake jade articles are dry and dull, and some have bubbles.
② Hardness measurement: Carve and scrape with a knife, leaving no trace of real jade.
(3) The proportion of jade: real jade feels heavy, while fake jade floats lightly.
(4) Listening: Hang the jade with a thread and beat it with a hard object. Authentic voice is crisp and pleasant, and the aftertaste is melodious; The fake one is dull and dry.
⑤ Look at the fracture surface: With a magnifying glass of 10 times, the fracture surface of real jade is uneven, and a fine structure can be seen; Fake jade has a neat and shiny fracture, often a glass imitation, and its fracture structure is rough and waxy.
Question 8: What do you think of jade bracelets? 1. First, weigh it by hand.
The density of each kind of jade is different. For example, the density of jadeite is 3.33 or 3.34, the density of Hetian jade is 3.0, and the density of agate is 2.66, so each kind of jade bracelet will feel different in your hand. For example, if you hold it in your hand, you will feel like you have left your hand. Because of the high density of jade, the weight of jade bracelet will be relatively large. Other kinds of jade bracelets are less dense than jadeite, so they don't feel "dropped" when held in their hands.
2. the second is to look with your eyes.
Looking at the surface luster of jade bracelets, the refractive index of each kind of jade is different, so the surface luster of jade bracelets will be different, like Hetian jade and Xiuyu jade. Surface gloss is an oily luster, which looks a little oily, which is what experts often say about the oiliness of Hetian jade.
Like jadeite and agate, the surface luster is glassy, but the glassy luster of jadeite is bright, even brighter than the luster of agate.
3. Then look at the color of the jade bracelet. Each color of jade has its own characteristics. Different jade bracelets are similar in color, but if you look closely, you will find that there are still differences. For example, the color of Xiuyu bracelet is a unique yellow-green color, while the green color of jadeite may be similar to that of Australian jade.
However, the green color of Australian jadeite is generally evenly distributed without color roots, while the green color of jadeite is often colored roots.
If a green jade bracelet costs only a few hundred dollars in the market, you should pay attention. This jade bracelet is probably not a jade bracelet, because the price of green jade bracelet is very high. Such cheap green jade bracelets are probably jade B or B+C bracelets, or Australian jade bracelets, jade bracelets and so on.
4. There is also the ability to observe the surface characteristics and internal characteristics of jade bracelets.
For example, jade bracelets can be identified by observing the surface of jadeite, which is only available in jadeite, but not in other kinds of jade bracelets; Like Xiuyu, when we see the transparent water head and the unique yellow-green color, we can almost identify it as Xiuyu; And an agate bracelet. When we see the circular stripes on the surface of the jade bracelet, we can be sure that it is an agate bracelet. In fact, each kind of jade bracelet has its own unique temperament and distinctive natural imprint. As long as we can grasp the characteristics of each kind of jade bracelet, we can identify the jade bracelet from these characteristics.
Finally, you can tell by listening to the sound.
This is particularly evident on jade bracelets. Jade itself is different from other jadeites in texture and composition structure, so the sound made by two jade bracelets when they collide gently is also different from other jadeites. At the same time, it can also be used to identify the authenticity of jade bracelets. We hung jade bracelets with ropes and tapped them with agate sticks, and the sound of jade A goods was crisp and crisp; The voice of jade B or B+C bracelet is dull and hoarse.
Question 9: How to judge the authenticity of a jade bracelet? The method of identifying the authenticity of jade articles is expensive and requires high selection technology. It is difficult for most consumers to distinguish its advantages and disadvantages, and it is easy to buy inferior products or fakes with a little carelessness and suffer huge economic losses. There are many jade shops in the market, and jade articles are generally divided into nephrite and jadeite. Emerald is also called emerald. Academically speaking, nephrite is a silicate containing calcium, magnesium and iron; Jadeite is a silicate containing sodium and aluminum. The following is a description of the identification method of jade: water identification method → drop a drop of water on jade, which will become dew after a long time, which is the real jade; The water droplets disappear quickly, which is a fake. Touch by hand → Real jade will feel cold and lubricated if touched by hand. Inspection method → Put jade in bright places such as sunshine and light. If the color is clear and the green is evenly distributed, it is a real jade. Licking the tongue → licking the real jade with the tip of the tongue has a astringent feeling; Fake jade has no astringency. Magnifying glass viewing method → Put the purchased jade under a magnifying glass to watch, mainly to see whether there are cracks. The jade without cracks is the best quality jade, followed by cracks. Even if it is real jade, the value of cracks is greatly reduced. The more cracks, the more obvious and the lower the value.
Question 10: How to identify the authenticity of jade bracelets can be identified by referring to the following methods:
First of all, look
Look at the color and transparency. Put the jade bracelet in a bright place. If it is crystal clear, slightly impure and evenly distributed in color, it should be genuine. Because jade is naturally generated, there are some impurities in it, which are very pure, but they are generally priceless and rare.
Look at the polishing. Polishing reflects the technical level of jade bracelets. It is well polished and feels naturally moist and oily. Such a jade bracelet is a rare work.
Looking for cracks. Use a magnifying glass to aim at the front, back and side of the jade bracelet and observe it carefully. Cracks are fatal to jade bracelets, so be sure to look carefully when buying them.
Second, listen
Listening to the sound helps to judge the quality of jade bracelets. Hang the jade bracelet in the air with a rope and beat it with agate. It should be a product with a melodious sound like a wind chime, but if the sound is dull and hoarse, it is not necessarily a good product or a genuine product.
Third, lick
Gently licking the jade bracelet with the tip of your tongue will make you feel astringent, but not if it is a fake. Although it is unsanitary, it is a good test method.
Fourth, touch
Touch it with your hand, and the real jade bracelet will feel cold. Hold it in your hand for a while. Although it is hot, it still smells cold. If it is a fake, it will only feel hot.
Five, dripping water
Dropping water on a jade bracelet is a dewdrop-shaped real thing that won't go away for a long time, and a fake thing that will soon go away.
Six, fire
Wrap a hair tightly around the bracelet and light it with a lighter. If it's genuine, it won't burn out.
Seven, friction
When two pieces of jade rub together, it is the real thing that feels delicate and smooth. If it's as slippery as scraping glass, it's probably a fake.
Eight, look at the certificate
The merchant is required to issue an appraisal certificate of the jade bracelet. If you are not at ease, you can call the contact number of the appraisal institution above to check it.