Teach you a simple method: 1. Looking at the sunshine, there are some foggy things in jade, like cotton wool. 2. Jade is very hard, like a diamond, so you can draw a series of marks on the glass. 3, the jade is cold, put a head on the jade, burn it with a lighter, and have a fever next to the jade head.

How to tell that there is jade in the stone?

The most expensive gambling stone in China's history is "Heshibi". According to legend, a man named Bian He found a rough jade in Chu State 2000 years ago. Presented to the two monarchs of Chu, they thought they had been cheated and cut off his left and right legs. Bian He can't walk without legs. He cried for three days and three nights on Chushan with jade in his arms. Later, the king of Chu knew about it. He sent someone to bring the jade and let the jade worker cut it. As a result, a gem-grade jade was obtained. This kind of gem is named "He Shi Bi". Later, this gem was owned by King Hui of Zhao, and Zhao Haoqi, King of Qin, promised to exchange 15 cities for this gem.

Many people assume that if Bian He can live to this day, he must be an outstanding gambler. Because to see the quality of jade through its skin requires a deep knowledge of jade science. As the saying goes, "A fairy can't break an inch of jade." Jade is mysterious when it is underground, and it can't be detected by any instrument. When coming out of the ground, because the surface of the original stone is covered with a weathered leather shell, the internal situation of the stone can't be seen. Even in today's advanced technology, no instrument can penetrate the leather shell to see the advantages and disadvantages inside. It is not clear what is inside the leather shell. And the process of judgment is called gambling stone.

Gambling stone is about uncut jade raw materials. Since ancient times, the sale of jade rough stone is the most mysterious transaction, and the mystery lies in the word "gambling", so buyers have the saying of gambling on jade. If you win the bet, you can become a rich man overnight. If you lose the bet overnight, you will lose everything, which is extremely risky and very * * *. So this kind of business has been enduring since ancient times. In Zhi Heng in Yunnan, written by Tan Cui in Qing Dynasty, there is a record of "gambling on stones" on the border between China, Myanmar and Thailand.

In mid-August, at the Stone Gambling Cultural Festival in Ai Jia Collection Market, players were very interested in gambling. How to play gambling stone? I'm talking about the big boss here

Is this black pearl real?

This is how jadeite is "gambled".

1, wiping, cutting and grinding

How to wipe, how hard to wipe, from which direction to wipe, or whether this stone can be wiped, we must think twice before you do it. Cutting a stone is like rubbing it. There is a cloud in the jargon: it doesn't rise when rubbed, but it rises when chopped. It can be seen that the importance of cutting, the buyer's experience and luck played a great role at this time.

Step 2 walk in the water

Let the stone walk around in the water, and then watch how quickly the water on the stone skin disappears. It shows that the crystal is coarse, the structure is loose or cracked, there are many pores and the texture is poor. On the contrary, it shows that its crystal is fine, its structure is compact and its texture is good.

Step 3 look at green

In the jargon, there are "Better buy a thread than one" and "Better buy a drum than a shortage". The quality and value of jadeite are determined by the amount of green and the color of the stone.

4, check the crack

In addition to observing the epidermis, distinguishing the interior and distinguishing the color, we should also pay attention to cracks. The fewer cracks the better. In the raw material market of jade, in order to show the texture and color of jade, jade merchants often cut off a small part of the epidermis and smooth the incision. This cutting jargon is called "opening the skylight". In order to make more money, jade merchants try their best to open a "skylight" where the texture and color of gambling stones can best be displayed. Therefore, when evaluating the "skylight", we must carefully look at the "skylight" and its surroundings, make a comprehensive comparative analysis, and remember not to overestimate the green color displayed by the "skylight". Business newspaper intern reporter Wang

Fake:

The pain of jade's "failure"

"Gambling stones must understand stones, otherwise it will become gambling luck with the naked eye." Wu Guozhong, former dean of the Jewelry College of China Geo University, said in an interview that many local sellers polished the green dot (jade) on the original stone so that people could see at a glance that the stone had "material"; There are also some jade without green spots, and the seller has covered the jade with a layer of skin, so people can't see whether there is any "material" in the end.

How to distinguish jade from stone?

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.

How to distinguish jade 5 points

First, from the perspective of jade.

(1) Be moist, not rough and translucent;

(2) hardness. Today, the hardness requirement of jade is 6.5, such as Hetian jade. Because the tools used to make jade articles in different periods are different, the hardness of jade articles is also different, because jade articles also have a popular definition-"stones that cannot be carved". Therefore, it can be said that according to this definition, the word "jade carving" is inaccurate. What can be "carved" is stone, and it should be called "cutting jade" and "grinding jade" accurately. The hardness of ancient jade is 4.5-6. For example, serpentine distributed all over the country (for example, the hardness of xiuyan jade in Liaoning Province is around 4.5) once existed as jade material for a long time in primitive times and bronze age. With the birth of iron in the Han Dynasty, the requirement for the hardness of jade was improved. At this time, varieties with hardness above 6 are needed to make jade materials, and Hetian jade has therefore become an enduring jade species for more than 2,000 years.

(3) The specific gravity needs to reach 3-3.5, and there is a feeling of falling hands.

(4) As jade, there can only be five colors, namely white, blue, yellow, blue and ink. The purer the color, the better. Those transparent, blue, red and so on can't be called jade, even if the specific gravity is large enough and the hardness is high enough, they are not jade.

(5) Jade material must be natural ore. Since the Warring States Period, glass has been used as jade. Nowadays, it is often passed off as low-priced foreign similar Hetian jade materials (Russia, South Korea, Canada, etc. ) or synthetic materials.

Second, identify the true and false from the color of jade.

(1) The color of the jade itself (the five colors mentioned above).

(2) Due to geological movement, jade rolled from the mountain into the river, and its skin color was soaked for thousands or even tens of thousands of years. Hetian jade has the best quality after rolling, not only because of the moistening effect of Kunlun Mountain on jade, but also because of the long-term immersion of river water. When dry, I like to use jade with preserved skin color to make small utensils (mountain jade is often used to make large utensils). In addition to the Qianlong period, in history, the Han Dynasty deliberately chose to keep a part of the skin color to prove that it was jade. Later dynasties such as Liao, Song, Xia, Jin and Yuan all chose to keep part of the skin color of jade articles, so it can be judged that jade articles of other dynasties may be imitations if they keep the skin color.

(3) Four or five hundred years ago, jade articles generally had the color of erosion, which was called "Qin color". Take Hetian jade as an example, natural streaks (there are impurity cracks in the middle of jade, which belong to material defects) and parts that have been bad when carving jade (or damaged in use) are easy to change color in the tomb.

(4) Color caused by human factors. There are two situations, one is that there are fire sacrifices in individual tombs in primitive society, and there are also natural fires, such as jade articles of Liangzhu culture. The other is to artificially remove the dark color of antique jade by steaming, frying, boiling, baking and pickling. According to the literature, there are even cases where new jade is stuffed into the stomach of sheep, buried underground for several years, and then taken out with blood for a long time to imitate "blood jade". Today, some people imitate it, coating it with glue and slowly baking it in the microwave oven at low temperature. Man-made old things can be distinguished, and the color is generally thick and easy to fade. For example, jade cooked with water, alkali, sulfuric acid, etc. Small pits are often left, and unnatural cracks will appear when cooking.

Third, determine the age according to the process trace.

People often use tools such as metal and emery (also known as jade removal sand) to puncture and carve jade articles, and in ancient times, they also used tools such as beef tendon. The holes and lines in jade often leave traces of historical production. For example, before the Spring and Autumn Period and the Warring States Period, because the hole-turning tools were soft, they were often imported bellmouth with big belly and small body, and the earlier the age, the more obvious the bellmouth was. At this point, the trace (effect) of modern imitation is different from the original process. Jade articles after the Warring States Period generally only see vertical holes with the same diameter. As for the lines, the lines on Liangzhu jade are often scraped with hard objects, which are relatively thin and have paths at the bottom of the ditch; The grain of Hongshan jade is probably ground with beef tendon and sand, and the grain is relatively thick; Since the Xia dynasty, people have used metal weights to grind. The groove bottom of the line is smooth and radian, with thin and shallow ends and thick and deep middle. Observing with a magnifying glass, we can find that the long lines are not straight, and there are traces of heavy objects in the middle. This is also the key point of identification. Determine the age through the modeling of jade articles

Every dynasty has its own style of the times, and often we can judge the age of an object from its modeling characteristics. Whether it is bronze, porcelain, wood or jade. , is the same. Looking at the age from the decorative patterns of jade articles

The differences of animal, plant and figure patterns on jade articles can reflect the characteristics of different times, especially the figure patterns are the most complex, involving the faces of figures. & gt

How to tell whether a stone is jade!

It is very difficult to distinguish jade from stone. Only by removing a lot of hard stones can you get a piece of jade. Experts can only see the natural lines of jade seedlings. Every time the real jade hammer knocks, it makes a crisp sound. It takes several hammers to make progress. Before taking jade, you must know the difference between jade and stone. The rock connected with jade is called jade root, which looks like jade is actually stone and is the most difficult to distinguish. If it is not well done, the jade will be broken, wasting treasures, or replacing jade with stone, in vain. The bigger the jade, the better. The sculptor carves the jade according to the natural shape of each piece of jade, and then cuts it.

How to tell whether a stone is jade or valuable?

How to tell the quality of jade? Jade, mainly jadeite and nephrite. Nephrite has become a treasure of antique lovers and jade collectors; Emerald is a jadeite ornament seen in the market. How to distinguish the quality of jadeite, experts provide five simple methods: look at the color. Color is the most important factor to evaluate the quality of jadeite. Jade without color is just a stone. The top grade is even, sunny, thick and the color is positive. Unity means uniformity; Yang refers to bright colors, giving people a sense of joy and no sense of stagnation; Thick means that the color is deep enough; This means there is no other noise. Look at the texture. Emerald is a polycrystalline mineral formed by silicate under high temperature and high pressure. The size of its constituent crystals will directly affect the smoothness, transparency and tone after polishing. Therefore, the finer the polycrystalline structure, the better the texture of jadeite. Third, look at transparency. Transparency and texture are complementary physical phenomena of jadeite. The transparency of jadeite is like glass, and the fineness of crystals in jadeite can make the light shine directly without being blocked. Fourth, look at the processing the day after tomorrow. The jadeite that has not been bleached, faded or dyed during processing is "A" grade, with the highest value; The bleached jadeite is "B" grade, followed by value; The dyed jadeite is "C" grade, and its value is low.

How to tell if there is jade in the stone?

1, white python

Unlike the primary colors of stones, pythons are white and are called white pythons. Dabaishi also has white pythons, which are difficult to identify. Among these pythons, pythons are grayish-white, especially those with gray pythons on black stones, just like snot, so gambling is very sure. If there is a little pine flower on the python, it is a rare appearance. As long as there is a python on the stone at the entrance of the old pagan in the old field, you can bet. If it is the black wusha of the old pagan, you can also bet on pythons with the same muscle, and their pythons are colored everywhere they go. Don't bet on the stone at the gate of Mohan Field.

2. Belt

That is, the python wraps around the middle or one end of the stone like a ribbon. If this belt is like a knotted rope. It is called python tight, which often shows that the color inside is good. If this python has pine flowers, it must be colored. Don't miss it.

3, filar silk python

The skin of a stone is like a python with a grain of wood. The color inside is also filar silk. Even the black wusha of the old pagan, if its skin is filar silk python, it is also filar silk green inside, and will not be connected into pieces.

4, half a python pine flower

You can gamble at any venue. If the performance of Songhua is very small, it depends on the variety.

5, card three pythons

This kind of python is usually colored, and the python is pitted like a honeycomb. Most of the three python stones are thin and half thick, with high emerald content, which is easy to gamble. It should be noted that if the python has formed a gypsum-like skin, the emerald inside will not be very high or even colorless.

6, silk, strip, point python with pine flowers

Rare gambling stone. All kinds of pythons are displayed on a stone.

7. Silk pythons with pine flowers

If the color is good, the color will rebound. If the variety is poor, only the moss is used, and the color is relatively simple.

8. buckwheat noodles

It looks pale, like a layer of buckwheat flour. You need to splash some water to observe.

9.baotou python

A python belt is wrapped around a corner, just like wearing a Baotou. The price depends on the thickness of the python belt and the size of the winding part.

10, boa constrictor

Most of it can be seen by wiping it off.

1 1, a python

It looks like hair, look at its length and thickness, and pay attention to finding pine flowers.

It should be noted that most people are not familiar with the lines of stones, but they will still look for pythons when they look at them. Identifying pythons requires careful and patient long-term observation and exploration, and it takes time to identify pythons at a glance.

How to see if a stone is jade? How to quickly identify the gem level?

In fact, jade is just a general term for many kinds of stones, and many stones can be called jade.

At present, the main varieties on the market are jadeite and white jade, of course, they are generally mid-range. After all, there are very few high-end products.

The best white jade is Hetian jade in Xinjiang, the real Hetian jade in Xinjiang, which is produced on the north side of Kunlun Mountain. Its jade is delicate, soft, hard and tough, and the purple jade produced in rivers is extremely rare and precious. Because mining is difficult and resources are nearly exhausted, the price of white jade is high. A kilo of good material costs more than RMB 10.

At present, there are about the following kinds of "white jade": Qinghai white jade, Russian white jade, Beijing white jade, water white jade and Xiuyu jade. The layman must be fooled. Of course, if you buy the same "white jade" at the same price, you will not lose money. So how to identify these kinds of "white jade"? Summarized as four points, namely structure, specific gravity, hardness and color. If you master these four points, you can roughly distinguish the authenticity.

(1) Hetian white jade: The specific gravity is 2.9-3. 1, which is heavier than other jade materials and "enough". This can be distinguished by weighing by hand. The hardness is 6-6.5. When you scrape the glass with white jade, it's easy to scratch the road, because the hardness of the glass is only 4, even an iron knife can't scrape the white jade. Color: There are several kinds of whites of Hetian jade, of which suet white is the most precious, but no matter which kind of white, it has the basic characteristics: the color is calm and dignified, luxurious and unambiguous, the light is restrained but not leaked, and it looks mature and heavy. Structure: White jade is a special body composed of amphibole minerals. Tremolite is a very fine fibrous crystal in rock, closely intertwined with each other, like felt, so it is very tough and delicate, warm and smooth, as smooth as fat. This needs to be observed under a microscope, which is one of the characteristics that distinguish it from other jade.

(2) Qinghai white jade: produced in the hilly area of southwest plateau in Golmud City, Qinghai Province, mainly made of mountain materials. The output is huge. Qinghai white jade and Hetian jade are basically the same in material combination, occurrence and structure, but their specific gravity and hardness are slightly lower than Hetian jade. Its identification can grasp two points: good transparency, tender but immature color; White jade in Qinghai is generally yellow-gray and smoky-gray; There are many stone flowers, flocs, spots, etc., which can be seen by the naked eye. At present, the price of white jade in Qinghai is not high.

(3) Russian white jade: produced in its Osbin area, its specific gravity and hardness are not as good as Hetian jade. Its chemical composition is quite different, its color is gray, its luster is weak, its smoothness is less, and it is "tender" and not moist enough. There are Russian white jade on the market now, but the price is not high. /kloc-you can buy a brand around 0/00 yuan.

(4) Jingbaiyu: produced in Xishan, Beijing, it belongs to quartzite jade, with a specific gravity of 2.65-3.0 and a hardness of 7. Because it is granular, it is brittle and has granular fractures. The poor quality is sandy, slightly transparent and semi-greasy. This is the main point of identification. Good Beijing white jade is fine in texture and has the characteristics of spar brightness, and it is as white as suet jade after polishing.

(5) Water white jade: a kind of jade produced in Henan and Nanyang. It is very transparent, glassy, with a large specific gravity and a hardness of 6-6.5. It is relatively light in the hand and easy to distinguish from the weight. Very cheap.

(6) xiuyan jade: mainly produced in Xiuyan, Liaoning Province, with specific gravity of 2.44-2.62 and hardness of 2.5-4, with oily luster, translucent to opaque. There are many kinds of jadeite jade, which often looks like white jade, and one of them is more like a clear white or blue-gray jade flower. There are three main differences: first, tapping in the air, the sound of white jade is dignified, and the sound of jade is crisp; Second, jade is more transparent; Third, the hardness is low, the specific gravity is small, and it is very light in the hand.

Emerald is divided into A, B, C, B and C. Due to the high price of high-quality jadeite, there are many fakes and substitutes in the market posing as real jadeite, and the price of one genuine product is very different from that of another. For collectors, it is particularly important to identify the authenticity and understand similar green jadeites.

Dyed jadeite is called "B" in jargon. The color of this jade is not natural, but it is put in by laser through chemical method. To identify this kind of jadeite, we should carefully look at whether the color is pure. Real jadeite is dark green, with flocculent small crystal fibers, cicadas or stars, while "B" jadeite is floating, turbid and dark red.

The incoming jadeite is called "C", which contains no jadeite, and is all made of glass or other materials. This kind of imitation is even in color, enchanting and harsh, with no jadeite features inside and a light proportion. There are also unscrupulous traders abroad who use high-pressure inferior jadeite to grind it into powder, and then add color at high temperature to crystallize it into jadeite, which is very well imitated ... >>