Temperature: In general, the temperature in the crystal is lower than other gems. Touching with the palm of your hand or cheek will make you feel slightly cold. This defecation method is only suitable for larger crystal balls or sticks, because too small crystals such as crystal hands? Or the pendant is hard to feel the temperature difference.

Weight: Crystal is a kind of stone with high density, and its weight will not be very heavy. When you buy a crystal, weigh it in your hand. It is found that the lighter one is likely to be a fake crystal made of glass or plastic. At present, the weight of crystals made by the method of "growing crystals" is very close to that of rock crystals, and it is not easy for ordinary people to separate them. Only by observing other aspects, such as the existence of "inclusions" and refractive index, can we distinguish between true and false.

Refraction: Crystal will have birefringence. Draw a black line on white cloth or white paper and put the crystal on the table. Looking through the crystal, the black line will be refracted into two balanced or overlapping black lines. If you can't see birefringence, it's probably a fake crystal made of glass. But this method is only applicable to distinguish the difference between glass and crystal. Now crystals made of "growing crystals" also have refractive index. This method is also not suitable for identifying the authenticity of a white crystal ball, because the refractive index of the white crystal ball is not high, and this method may not be accurate.

Energy: Real crystals can emit energy. When buying a crystal column, pick it up with one hand and point it at the palm of the other hand, with a distance of 2 to 3? Should the nails be closed? Turn around slowly. The palm of your hand can feel the energy emitted by the crystal column to the palm of your hand, which is obvious. Of course, there are also a few people who feel very weak about the energy in the crystal. They can't feel its energy when they first touch the crystal. This method is not applicable. But if you can feel the energy from the crystal in this way, you can be sure that what you have is a real rock crystal.

Inclusions: Any rock crystal has "inclusions" (i.e. minerals or bubbles), only depending on the type and size of "inclusions". These "inclusions" are more or less visible to the naked eye. If you look crystal clear and don't see any "inclusions", you must be careful. It may be a fake crystal made of glass. I believe that if you want to buy such a rare rock crystal, you must pay for it through proper instrument appraisal. An extremely crystal clear crystal must be "contained" and can only be seen with a professional microscope.

(1) At first glance, rock crystals are often influenced by the environment and always contain some impurities. When you look at the sun, you can see faint or even tiny stripes or catkins. Fake crystals are mostly made of inferior crystal slag and glass slag. After polishing, coloring and imitation, there are no uniform stripes and catkin-like substances.

(2) Lick your tongue: Even in the dog days of hot summer, licking the surface of the crystal stone with your tongue will feel cold and cool. Fake crystals are not cool.

(3) Illumination: When the crystal is placed vertically in the sun, it can emit beautiful light from any angle. Fake crystals can't.

(4) Hardness: The hardness of the crystal is very high, and it will leave no trace when lightly scratched with gravel on the jewelry; If there are streaks, it is a fake crystal.

(5) Inspection with a polarizer: the rock crystal rotates 360 degrees under the polarizer, with four bright and four dark changes, while the fake crystal does not change.

(6) Check with dichroism: natural amethyst has dichroism, while fake amethyst has no dichroism.

(7) Magnifier inspection: under the transmitted light, the bubbles that can be found can be basically classified as pseudocrystals.

(8) Check with hair: If the crystal is placed on a hair, the human eye can see the double shadow of the hair through the crystal, it is a rock crystal, mainly because the crystal has birefringence.

(9) Test with a thermal conductivity meter: adjust the thermal conductivity meter to 4 squares of green to test the gem, and the rock crystal can rise to 2 squares of yellow, while the false crystal does not rise, and when the area is large, it will rise to 1 lattice of yellow acume.ws/CRYSTAL/web_c/Mainpage2. ....

Question 2: How to tell whether the crystal is true or false? The easiest way is to take a bowl (made of plastic), connect it with water and put the crystal in the water. Then put it in the refrigerator until it turns into ice. After freezing into ice, take the ice out of the bowl. At this time, the crystal has frozen into ice. Boil another pot of water and add ice cubes. Principle: If it is a real crystal, it is not afraid of such a wide temperature difference. On the contrary, it is false. The fake crystal will break and fall apart immediately. The method is to teach you to see if you are willing to do it. A nondestructive method for distinguishing crystal from glass

1. Wipe or clean the artwork to be identified, dry it and touch it with the tip of your tongue. If it feels cold, it is a crystal product; If it feels warm, it's glass. During the test, try not to hold the sample by hand or put it near the heat source (in the sun, by the fire) to avoid the error caused by the rising temperature of the sample.

2. Observe handicrafts with a magnifying glass. Because of uneven melting, there are often vortex or arc lines in the glass, but there are absolutely no lines in the crystal. In addition, there are often many bubbles in glass, but few bubbles in crystal.

For the crystal ball, you can put it on the newspaper and read the newspaper below from the top of the crystal ball. If it is a real crystal, the handwriting in the newspaper will appear double. If it is made of glass (including crystal glass), the handwriting in the newspaper will always have only one image. For accuracy, you can roll the sphere slightly in the newspaper and observe it again.

4. For crystal glasses, you can use a polarizer to check. Adjust the polarizer to the orthogonal position, and the field of view will be completely black. Then, put the crystal glass between the upper and lower polarizers. The lens and polarizer are not strictly parallel. You can tilt them slightly to make them have an included angle, and then rotate the glasses. If it is made of real crystal, the visual field will have obvious brightness change. If it is always dark when rotating, then this spectacle lens is glass or crystal glass (glass made of inferior crystal).

5. When traveling abroad, polarizers are inconvenient to carry. You can bring two polarizers with a diameter less than 40mm (or two smallest polarizers for photography). When measuring, one person holds two polarizers, making them orthogonal and all black, and the other person holds glasses and rotates between them. If there is obvious brightness change, it is a real crystal product, and if the darkness remains unchanged, it is a glass product.

Crystal products are easily confused with glass products, especially under the irradiation of light, it is more difficult to distinguish authenticity. But as two different materials, they are very different. Glass has low hardness and light handle, and will not develop color under light irradiation.

Distinguish between crystal and glass mainly depends on the following four points:

First, listen to the sound and distinguish things. When the utensils are struck by hand, the sound of crystal products is crisp and long, while the sound of glass products is dull and unresponsive.

Second, the "weight" is different. For two items of the same size, the crystal product is heavier than the glass product.

Third, look carefully at the degree of refraction. Under the same light, the refractive index of crystal products will be better than that of glass products, and colored light will appear, while glass products will not have colored light.

Fourth, the hardness is different. Crystal is harder than glass. Scraping glass with crystal will leave traces on the surface of glass, while scraping crystal with glass will leave no traces. What's the difference between rock crystal and synthetic crystal? There are too many fakes between amethyst and topaz. One characteristic that distinguishes crystal from artificial crystal is its luster. The surface of crystal ornaments presents oily luster, while the surface of synthetic crystal ornaments presents glass luster. At present, there is no synthetic crystal with oily luster.

Although crystal is not a precious gem, it is more and more loved by men, women and children all over the world because of its unparalleled medical effect and low price. As a crystal lover, everyone wants to have all kinds of crystals, whether natural or synthetic, but he must want to know whether his crystal is synthetic or natural.

At present, colorless crystal necklaces and tea crystal necklaces on the market can be described as natural and synthetic, while colored crystal necklaces are mostly synthetic crystals. There are fewer real natural colored crystals, and even fewer are used to make necklaces.

The biggest feature of synthetic crystal is that it has a daughter nucleus. Synthetic crystals are easier to judge if they have crystal nuclei, because crystals and generally colorless long plate columns have obvious boundaries with the surrounding synthetic crystals. But recently, some colorless synthetic crystals on the market, the crystal nucleus and synthesis are colorless, and there are some natural inclusion characteristics in the crystal nucleus or some bubbles between the crystal nucleus and the synthetic crystal, which makes some experienced people easily mistake them for rock crystals. If you look closely, you will find what kind of inclusions only exist in children and hosts, and there is a feeling of being blocked around them by an invisible wall. Between crystal nucleus and synthetic crystal > >

Question 3: How to distinguish real crystal from fake crystal? Distinguishing crystal mainly depends on the difference between crystal and glass.

The first is about the distinction between crystal and glass products.

Crystal: birefringence, hardness 7, cold to the touch.

Glass products: no refraction, hardness 5-6, warm to the touch.

The brightness of crystal is different at every angle, and the brightness of glass is the same at every angle; Scrape the glass with crystal, there are scratches on the glass, and the traces can't be erased, and the crystal is not damaged; Scraping the crystal with glass, there are slight scratches on the crystal, but it will be erased and the glass will be damaged; In the same environment, the cold feeling of holding the crystal lasts for a long time, but holding the glass will feel warm and the heat transfer speed will be fast!

Nine winning ways to distinguish true and false crystals: (so you are no longer afraid to buy fakes. . . )

1. Look: Looking at the sun with crystal, you can see a weak or even tiny horizontal stripe or catkin-like substance. Most of the fakes are made of inferior crystal slag and glass slag, which have been polished, colored and imitated, and there is no unified substance.

2. Tongue licking: Even in hot summer, licking the surface of the crystal with your tongue will feel cold and cool; On the contrary, it is fake!

3. Illumination: When the crystal stands upright in the sun, no matter from which angle, it will release beautiful light with different brightness; On the contrary, it is fake!

4. Hardness: lightly scratch the crystal with gravel, leaving no trace; (Obsidian is less hard and must be eliminated, otherwise your obsidian will be hurt, so it's not mine, hehe) Otherwise it's fake!

5. Check with a polarizer: Turn 360 degrees under the mirror, and there will be four bright and four dark changes to be the real crystal!

6. Check with "dichroism": Rock crystals have "dichroism"!

7. Check with a magnifying glass: check with a magnifying glass of ten times under the transmitted light, and you can find the true and false bubbles! (pay special attention, if you just look at it with the naked eye, you will see that DD in your hand contains small bubbles. Hey, hey, don't buy it )

8. Check with hair: The crystal is placed on a hair, and people can see the double shadow of the hair through the crystal! (Because of the birefringence of the crystal) On the contrary, it is false!

9. Check with a thermal conductivity meter: when the gem is adjusted to 4 squares of green, the rock crystal will rise to 2 squares of yellow, and when the area is large, it will rise to 1 square of yellow.

Crystal is a very popular gem. It was called "water essence" in ancient times, that is, the essence of water, also known as "water jade", "white jade", "jade crystal", "Millennium ice", "Bodhisattva stone" and "flash stone". Aristotle, a famous ancient Greek philosopher, also believed that crystals evolved from ice. In fact, crystal is the crystallization of silicon dioxide (SiO2 _ 2), which has no internal connection with water or ice. Usually colorless and transparent, but it can have different colors when it contains iron elements, such as purple, yellow, smoky gray and so on. When the crystal contains fibers or needle-like minerals arranged in a certain direction, it can be processed into "eye hunting crystal" or "starlight crystal" or "hair crystal", and if it contains water inclusions, it may become "water gallbladder crystal".

Crystal and glass are very similar in appearance, but they are two completely different substances. The main differences are as follows:

One. Different materials

Crystal is a crystal of silicon dioxide, while glass is just a molten mixture containing silicon dioxide.

Two. Different efficacy

Glass has only decorative function, while crystal has piezoelectric effect in addition to decorative function and has special health care function.

Three. Different prices

The unit price of crystal is several times or even dozens times higher than that of glass.

Four. Different physical properties

1。 Crystal has a high hardness (Mohs 7), while glass has a low hardness (Mohs 5.5). Crystals can draw marks on glass, but not vice versa.

2。 Crystal is a kind of crystal with good thermal conductivity, and it will feel cold when touched with the tip of the tongue. The glass looks warm.

3。 With a polarizer, crystal can transmit light, but glass can't.

According to the different physical properties of crystal and glass, we can distinguish them conveniently.

Five. Different processing techniques

Glass can be hot-cast, which saves material and labor and has low cost.

Crystal is a crystal, which is irreversible after heating and melting, so it can't be molded by hot casting, but only by cold working methods such as cutting and grinding. Waste of materials and manpower, high cost.

Crystal has high hardness and is not easy to wear. Glass has low hardness and is easy to scratch.

The crystal has good stability and will not change color after long-term use. And glass turns yellow easily.

Crystals are not isotropic, but glasses are isotropic. (that is, crystal ... >>

Question 4: How to tell whether a crystal is true or false? Here's how to tell the truth:

(1) At first glance, rock crystals always contain some impurities during their formation, which are often influenced by the environment. When you look at the sun, you can see tiny and even stripes or catkins. Fake crystals are mostly made of inferior crystal slag and glass slag. After polishing, coloring and imitation, there are no uniform stripes and catkin-like substances.

⑵ Lick your tongue: Even in the dog days of hot summer, licking the surface of the crystal stone with your tongue will make you feel cold and cool. Fake crystals are not cool.

⑶ Lighting: The crystal stone can emit beautiful light from any angle when placed vertically in the sun. Fake crystals can't.

(4) Hardness: The hardness of the crystal is very high, so it will be lightly scratched on the jewelry with gravel without leaving any traces; If there are streaks, it is a fake crystal.

5. Check with a polarizer: the rock crystal has four bright and four dark changes when it rotates 360 degrees under the polarizer, but the fake crystal has not changed.

[6] Check with dichroism: natural amethyst has dichroism, while fake amethyst has no dichroism.

(7) Magnifying glass inspection: under the transmitted light, the bubbles that can be found can be basically classified as pseudocrystals.

Being checked with hair: only in a round crystal ball. Put the crystal ball on your hair. If the human eye can see the double shadow of the hair through the crystal, it is a crystal ball. Mainly because the crystal has birefringence. However, it is impossible to distinguish natural crystals, cultivated crystals and melted crystals. Only other substances such as glass can be distinguished.

⑼ Test with thermal conductivity meter: Adjust the thermal conductivity meter to 4 squares of green to test the gem, and the rock crystal can rise to 2 squares of yellow, while the false crystal does not rise, and when the area is large, it will rise to 1 square yellow.

Here are the ways to identify the quality of crystal:

① Look at the raw materials: crystal products with excellent materials should have no glue mouth and cotton wool; The texture is pure, smooth and crystal clear.

② Look at workmanship: There are two kinds of crystal products processing techniques, grinding and carving. Such as crystal necklaces, bracelets, earrings, etc. Belonging to abrasive products; Guanyin statue, painted snuff bottle, etc. It belongs to sculpture.

③ Look at polishing: the quality of polishing directly affects the value of crystal products. Polishing is divided into soft polishing and hard polishing.

④ Look at the eye hole: For crystal products (such as necklaces, bracelets and beads), it depends on whether the eye hole is straight, whether the thickness of the hole is uniform and whether there are tiny cracks. The hole wall must be clear and transparent without "white spots". ⑤ Look at the color: Even if it is the same crystal, the texture and color of different parts are different. It belongs to monochrome, and the chromaticity should be uniform; If there are tones on the same crystal, it is required that the tone lines are beautiful and generous.

Question 5: How to identify the authenticity of the crystal? Crystal is one of the accessories favored by women. Because it is easy to be faked, many ornaments on the market are made of glass or synthetic crystal, instead of crystal, resulting in the phenomenon that "real fish are real pearls", which has caused many troubles and helplessness to friends who love crystal ornaments. However, the identification methods introduced by the network or some books and periodicals either require high professional knowledge, complex instruments and equipment, or the methods themselves are wrong. I am engaged in the crystal production and sales industry, and now I would like to share with you some experiences and methods of identifying crystals, hoping to help you. The common crystal substitutes in the market mainly include synthetic crystals and glass products. The identification method is introduced as follows:

ynthetic quartz

The composition and structure are exactly the same as those in rock crystals, especially when the inside of the crystal is very clean and no features can be seen, even laboratory identification is difficult and large instruments are needed. In this case, it is difficult to distinguish between natural and synthetic crystals only by naked eyes and portable instruments such as ten times magnifying glass. But there is also a method that is not very useful, that is, put the crystal to be tested at room temperature, and feel its cold degree by hand after its temperature is stable. Generally speaking, rock crystals are cooler, while synthetic crystals or glass have a sense of temperature. However, this method is greatly influenced by weather and environment, and it is not applicable in winter. Moreover, because individuals have different feelings about temperature, it is only an auxiliary identification method. However, most rock crystals contain inclusions more or less, such as cotton, crepe, clouds, mineral inclusions and so on. They form green ghosts, all kinds of hair and flowers, full of vitality. Synthetic crystals are relatively clean, but sometimes they have the following characteristics, which can be determined as synthetic crystals:

1) A layer of dust will fall on the glass desktop that has not been wiped for a while. This phenomenon must have been seen by everyone. If you see a phenomenon similar to "desktop dust" inside the crystal, that is, there are many tiny gray or white dots in the crystal, which are distributed along one plane or several parallel planes, the rest of the crystal is very clean. So this is basically a synthetic crystal.

2) Sometimes there are some thin hollow inclusions in the synthetic crystal, which are basically parallel, sometimes reaching the surface, or maybe one end is big and the other end is small, like nails. This is only available in synthetic crystals, which may be some flux residue in the synthesis process. This is a synthetic crystal.

3) rock crystal is basically not green, or extremely rare. Such as green ghost, green hair crystal and other varieties, the contents inside are green, but the crystal itself is colorless and transparent. So there are a lot of green transparent crystals on the market, the colors are basically processed, and most of them are synthetic crystals.

4) The price of rock crystal is tens or hundreds, depending on the size of the crystal, and the wholesale price is also tens of yuan.

glass

Cheap imitations can be made into various colors, and sometimes they can be made translucent, which is relatively easy to identify. It can be considered as glass with the following characteristics:

1) Many books teach people to distinguish a crystal ball from a glass ball by looking at the ghost of hair, that is, put a hair under it and look at it through the ball. If the hair becomes two, it is crystal (natural or synthetic), or one is glass. However, using this method also has some limitations: the ball should not be too small, if it is a ball on the bracelet, the effect is not good. And when you look at it, you should pay attention to turning the crystal ball to observe, not all directions will have ghosts. I don't know much about crystal balls, and I don't know how to look at them. However, I would like to remind friends who want to buy crystal balls: those "crystal balls" that are not small in size, very clean inside and not too expensive must be noted, and they are probably artificial crystals or glass. When buying, you must ask for an appraisal certificate issued by a professional institution recognized by the state. But sometimes, the appraisal certificate is not necessarily reliable. As we all know, the appraisal certificate will also be false.

2) Bubbles can only appear in glass, but sometimes spherical inclusions appear in natural chalcedony. I've seen some, and it's easy to think it's a bubble if you don't pay attention. The difference is that the surface of bubbles is bright and reflective, while the surface luster of inclusions is much darker. This requires experience and can be mastered by reading more.

3) Glass products are usually cast or blown, while crystals are polished after grinding. So like crystal beads, sometimes they are not round enough, and some planes or gaps remain in some places; However, the faceted size of faceted crystals may be different. These "flaws" are actually the labels of crystals, because glass will only appear indentation when it is cast (like many plastic products) or spiral when it is blown.

4) Swarovski "Crystal". At first ... >>

Question 6: How to distinguish true and false crystals? What is an article published by a person in the Shi Sheng Crystal Museum in the East China Sea? Recently, I consulted a crystal expert from Shi Sheng Crystal Museum in Donghai. At present, the most popular method for crystal identification on the Internet is the so-called seven-trick identification method. However, which of these seven tricks is practical? According to experts from Donghai Crystal Museum, although the seven identification methods are well organized, they also look reasonable. However, if you know crystal, this is of no use to you. If you don't know crystal, you can't detect any results if you go on like this. Let's look at the first one. Look: rock crystals always contain some impurities during their formation, which are often affected by the environment. When we look at the sun, we can see weak, uniform and fine stripes or catkins. Fake crystals are mostly made of inferior crystal slag and glass slag. After polishing, coloring and imitation, there are no uniform stripes and catkin-like substances. Expert comments on Shi Sheng Crystal Museum in Donghai: 1. There are many fake crystals on the market now, including glass, high lead glass, artificial crystal plastic and so on. But no one is stupid enough to remelt with crystal slag. In the process of making raw materials, there are two by-products, one is polishing powder, and the other is leftover stones. The market price is 1kg20 to 100 yuan (depending on the variety), and the natural white crystal is generally 40 yuan 1kg. If the hole is punched well, it is equivalent to more than 0/20 per kilogram/kloc. Even if the intraocular lens is made of culture solution, it will lose money, because the cost of intraocular lens is more than 0/00 per kilogram/kloc. In addition, the leftovers are far from being pure in time. From the cost point of view, it is unprofitable to make fake crystals with crystal scraps. Therefore, first of all, crystal slag fraud is ruled out. 2. Let's start with the most common white crystal. The purity of the local white crystal in the East China Sea ranks first in the world. Even a white crystal bracelet with tens of dollars may be extremely pure, not to mention the texture impurities with the naked eye, even if you use a simple 20-fold mirror of jewelry, you can't see anything, so it can't be used as a basis for whether it is a fake crystal. So this also shows that this judgment method is unscientific. 3. Many crystals in general are actually rock crystals, but many semi-precious stones contained in crystals, such as obsidian, agate and tiger's eye stone, can't be seen through at all. So this trick basically has no effect. B: Lick your tongue: Even in the dog days of hot summer, licking the surface of the crystal stone with your tongue will feel cold and cool. Fake crystals are not cool. Experts from the Shi Sheng Crystal Museum in the East China Sea say that it is unscientific for three reasons: First, it is unsanitary. Rock crystal ornaments pass through many people's hands, so it is unsanitary and uncivilized to lick them with your tongue. Secondly, only a short period of time in a year is dog days. How to lick it at other times? So it is unscientific. Third, the cold feeling, then, feeling is an uncertain thing. The same soup, I feel hot, maybe you feel just right. Same soup, 50 degrees hot, 90 degrees hot. When you feel cold, it may be glass, because glass is cold, too. Fourth, crystals have good thermal conductivity, but their specific heat is very low, so the crystal temperature in summer is usually extremely consistent with room temperature. Drinking water of about 30 degrees in summer will definitely not make you feel cold, and so will crystals. If you think it's cool, it means that you are psychologically hinted by yourself or others. In other words, under normal circumstances, you don't feel cool, but because of this psychological hint, you feel this psychological hint, so this article is also unscientific. C, lighting: the crystal is placed vertically in the sun, no matter from which angle it is viewed, it can emit beautiful light. Fake crystals can't. Experts from the Donghai Crystal Museum said that this unscientific reason lies in: 1. Swarovski, Austrian crystal and other high lead glass crystals are beautiful and glorious when they are not placed in the sun, let alone in the sun. This can't prove to be a crystal stone. 2. Why do you want to put it vertically? There is no rule that requires the crystal to be carved in one direction. As for "no matter from which angle", this is even more mysterious and completely mysterious by the original author. D, hardness: the hardness of the crystal is very high, and it will leave no trace when lightly scratched on the jewelry with gravel; If there are streaks, it is a fake crystal. According to experts from Shi Sheng Crystal Museum in Donghai, this article is unscientific because: First of all, the crystal boss won't let you row! 1. Jewelry appraisal uses standard hardness tablets, so you can't simply find something to draw conclusions. Gravel material is very ... >>

Question 7: How to tell whether a crystal is genuine or not? Stone crystal is a kind of gem, which was called "Shuiyu" and "Bodhisattva Stone" by Li Shizhen, an ancient physician, in Compendium of Materia Medica. Crystal necklace, a kind of handicraft made by careful processing, can produce some magical effects after wearing: it has the magical effects of improving eyesight, refreshing, facilitating defecation, nourishing viscera, lowering blood pressure and so on. Therefore, necklaces made of crystal are very popular with consumers.

At present, counterfeit crystal necklaces have been found in the market, which brings a difficult problem to consumers' choice and purchase. So, how to identify the true and false rock crystal necklace without instruments?

First of all, from an intuitive point of view, the real rock crystal necklace is crystal clear and soft in color, giving people a cool feeling when touching the skin. . Even in the dog days of hot summer, licking the surface of crystal ornaments with your tongue feels cold and cool. The fake crystal ornaments are cooler.

Secondly, from an optical point of view, a real crystal necklace is forward-spinning. When it is placed vertically in the sun, it can emit colorful brilliance. No matter which angle you look at it, you can send out beautiful luster, not fake.

Thirdly, from the physical and chemical point of view, the hardness, specific gravity and refractive index of real crystal necklaces are quite different from those of fake crystal necklaces. True weight, false light, true crystal necklace hardness 7.00, refractive index1.54; The fake hardness is only 5.2-6. 10 and the refractive index is less than 1.00. Rock crystal has a high hardness, so it will be lightly scratched on jewelry with gravel, leaving no trace; If there are streaks, it is a fake crystal ornament.

Fourth, from the purity point of view, crystals always contain some impurities, some of which have different degrees of defects and inconsistent colors. In the process of its formation, when observed in the sun, you can see weak and uniform fine stripes or catkins. Fake crystals are mostly made of inferior crystal slag and glass slag. After polishing, coloring and imitation, there are no uniform stripes and catkin-like substances.

Fifth, the real crystal necklace, the surface looks like a thin layer of oil, is blue. No, it's as white as glass

Question 8: How to tell the authenticity of a crystal bracelet? What should I do when shopping in the current crystal market? Below, Crystal Love is here to teach you a few tricks to distinguish the authenticity of amethyst bracelets. I hope you can buy your favorite amethyst bracelet. In fact, whether it is a bracelet, a pendant or a pendant, the method of distinguishing whether it is a stone crystal or an amethyst bracelet is the same, that is, distinguishing the authenticity of the crystal material: 1. Look at the internal crystal structure. At present, there are mainly artificial crystals, cultured crystals and rock crystals in the crystal jewelry industry. If bubbles appear inside the crystal, it must be artificially melted crystal, that is, glass. If you can see the growth line, it is cultured crystal. If it looks like glue, cotton wool, etc. It must be natural amethyst. In terms of price, artificial crystal is the least valuable, while artificially melted crystal appears in the production of large crystal balls. The price of intraocular lens cultivation is second. Although the cultivation of artificial crystal does not have the value of rock crystal, it is even better than rock crystal in the middle and low end because of its good appearance. Therefore, it often appears in low-grade crystal ornaments. Everyone should pay attention to the jewelry with asymmetric appearance and price in amethyst bracelet. 2. See if the overall feeling is natural. Natural amethyst looks more natural because it takes a long time to form, and there is no sudden feeling. Because there are many factors affecting the natural environment, there will be some defects, and it is impossible to have exactly the same crystal. Amethyst bracelets can be distinguished by comparing different beads, and even different parts of the same bead will have uneven colors. If it is synthetic amethyst, the color can be uniform, but it looks single and dull. Real natural amethyst can be seen in the morning and sunset, and there are 2 colors! Naturally formed amethyst is often accompanied by ribbon, while other forms of amethyst have no ribbon. When you look closely, you may find that the natural amethyst bracelet can still see obvious color bands even if the crystal is transparent and has few cracks. 3. Look at the handle. In terms of handle, the handle of rock crystal is basically the same as that of cultured crystal, and the handle of molten crystal is almost the same as that of glass. Natural amethyst will give people a cold feeling. If it is worn on the body, the temperature of natural amethyst will gradually increase with the body temperature, and finally it can keep the same temperature as the human body.

Question 9: How to distinguish the authenticity of crystal glasses? The easiest way.

First of all. Look at the price, every commodity has its finished product price. If the price is too low. The lenses are pure and flawless. You don't need to read the following text. Ha ha.

Second. Please clean the lenses with detergent. Carefully observe whether there is cotton in the lens crystal with the light on the mobile phone. What is true is true.

Third. Don't believe that polarizer clips can see colorful colors. This is actually a feature of the double-sided length in intraocular lens. Many people call deer horses before they become evidence. Ha ha.

Fourth. Don't trust scratched glass. Because the hardness of intraocular lens is about 6.5-7. Not much different from crystal stone. So you know.

Fifth. Don't trust fake appraisal certificates. The website of the certificate can be found on the website of the national filing system or the national telephone number: 010-66411166. Ten-dollar fake appraisals are everywhere.

Summary: Look at the price. Third, look at the crystal. Third, look at honesty. Fourth, look at the evaluation and distinguish between true and false evaluation.

I wish you the real thing. If you don't find it, come to the goose! ! ! !