Identify the most practical and reliable method in crystal, go to relevant departments for identification, and then measure the density! Recently, Bian Xiao consulted crystal experts from Donghai Crystal Museum. 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 the East China Sea:

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 of all, it's 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 Shi Sheng Crystal Museum in the East China Sea said that this unscientific reason lies in:

1. Swarovski, Austrian crystal and other high-lead glass crystals are beautiful and glorious, not in the sun, let alone in the sun. This does not prove that it is a crystal.

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 the Shi Sheng Crystal Museum in the East China Sea, this article is unscientific because:

First of all, crystal boss won't let you row!

1. Jewelry appraisal uses standard hardness tablets, so you can't simply find something to draw conclusions. But the material of the gravel is not clear. The hardness of tiger's eye stone and agate is much higher than that of crystal stone and lower than that of glass. So whether we are professional or not, we can get n results by changing a stone.

2. The common imitation crystal ornaments are mainly high lead glass artificial crystals. The hardness of artificial crystal is equivalent to that of rock crystal, higher than that of high lead glass and ordinary glass. High lead glass is higher than ordinary glass. Glass is higher than iron, and iron is higher than plastic. According to this hardness order, you can make some marks when scraping ordinary glass. The only thing that leaves no trace is acrylic, which has a small specific gravity and is unnatural without scraping.

3. Not conducive to jewelry maintenance. There may be ice cracks during the formation of crystal stone. If the operation is not careful, it is easy to cause the crystal to break from the ice crack. Even if there is no crack, the crystal is easily broken because of its low toughness. E: Examined with a polarizer: the rock crystal has four bright and four dark changes when rotated 360 degrees under the polarizer, while the fake crystal has not changed. The unscientific introduction of experts from Shi Sheng Crystal Museum in the East China Sea is due to:

1. The price of polarizer is higher than the testing cost, so it is more difficult to buy it than to find the product technical supervision bureau.

2. Nobody uses it. Not many people, including Donghai Crystal City, know this prop, let alone use it. The old master of the supervision bureau uses a high magnification magnifying glass. According to experience, this is unnecessary. In the case of simple and difficult pure crystal, such as white crystal, high-power mirror or filter can be used, and the cost is low.

4. It is not suitable for detecting opaque and irregular crystals, and the finished crystal with cut surface is not suitable because it is considered to change refraction and reflection. F, check with dichroism: natural amethyst has dichroism, and fake crystal has no dichroism. The reason why Shi Sheng Crystal Museum in the East China Sea published this article is unscientific:

1. No need. There are many natural purple crystal cotton bodies. More than 98% of the cotton-free body is unnatural, amorphous and pendant 1.99%.

Dichotomy is a noun, which is difficult for everyone to understand. G. Examining with a magnifying glass: When examined with a magnifying glass of ten times under the transmitted light, the bubbles that can be found can basically be classified as pseudocrystals. According to experts from the Shi Sheng Crystal Museum in the East China Sea, this article is unscientific because:

1. Some crystals are inclusions, such as water sacs, which are easily mistaken for bubbles.

Generally, glass has bubbles, and artificial crystals occasionally have them.

The X-ray mirror is too small.

4. After enlargement, the cotton in the rock crystal will be mistaken for bubbles. The small compilation is finished, hehe, I hope I can give you some reference and help when buying crystals. Www.shuijing56.com hopes to help the landlord.