Summer is the most suitable season for wearing jewelry. Because there are more naked parts, there are good opportunities for necklaces, bracelets and earrings. And in all kinds of jewels, Xiao Bian believes that the crystals that are rich in color, crystal clear and delicate and lovely are the most suitable for summer!
But do you know that although Crystal Volkswagen is close to the people, it is actually one of the most falsified and most profitable jewelry.
There should be many friends who have bought a "crystal bracelet" with a bells and whistles when they are "young and ignorant". If you can turn them out, you will find out in all likelihood that you have been cheated! They are not natural crystals, but dyed, or simply plastic or glass!
Although the output of crystal is large, it is really not a cheap, ubiquitous gemstone. Among them, citrine, titanium crystal, green ghost, etc. are worth a lot. Therefore, crystal anti-fraud knowledge, everyone is best to know.
Learn about the five major ways of making fake crystals.
There are five kinds of fake methods, such as man-made, dyeing, and impersonation. Some of them are recognized means, while others require everyone to polish their eyes and resist.
1, heat treatment
Heat treatment is the process of optimizing the gemstone appearance by placing the gem in the instrument and heating it by controlling different temperature and climatic conditions. As the gem becomes beautiful, its internal crystal structure changes little.
To put it simply, heat treatment is like giving crystal makeup! Because the color and clarity of most natural crystals are very general and the value is not high, but if you give it a little heat, the crystal will be beautiful, the market value. Will also increase greatly.
2, irradiation treatment
The so-called irradiation treatment .... is quite high-tech, is the use of a variety of strange rays to irradiate the gem, so that the color of the gem changes.
It should be noted that this treatment method is said to not only discolor the gemstone, but also cause the gemstone to radiate. Then, can you not buy the gems that have been treated with radiation? In fact, as long as they are regular processing manufacturers, after the irradiation treatment, the gems will be allowed to stand for a while before they are put on the market. After the radiation has passed the "half-life", there is no harm to the human body.
3, dyeing treatment
Have you heard of "Breakfast Crystal"? It is the kind of colorful, brightly-looking crystal that is very common in the market. In fact, this crystal is a product after high-pressure high-temperature dyeing! If the heat treatment is makeup, then this is basically a change of face:
Colorless crystal is the key concern of dyeing treatment. It will first be heated and quenched (that is, the gemstone is heated to a suitable temperature and kept immersed in the quenching medium for a while), then the crystal will be inside. Produce a lot of cracks: then put them into the dye, the colored solution will gradually precipitate in the cracks, making the crystal dyed in a variety of bright colors: In addition, in addition to dyeing the colorless crystal, now many profiteers still Dyeing refers to the hair crystal (because the crystal is expensive, the profit is higher)! It is the colorless red crystal, red, gold, blue and other popular colors!
4, glass posing as crystal
In addition to the above-mentioned "six-filled" means, some profiteers will even use glass to pretend to be crystal. However, it is also very well identified, mainly to look at its internal inclusions! Everyone knows that there are bubbles inside the glass, which is something that cannot be seen inside all the gems.
The inside of the crystal can be seen with a light, evenly thin horizontal grain or catkin-like material. If it is a bracelet, you can also observe its orifice. If the orifice has a sharp angle, it means it is at least a hard stone. If the hole is rounded and slightly invaded, it is usually a glass product, and the glass will melt slightly due to the temperature problem of the hole.
5, artificial crystal
Artificial crystals are artifacts that look perfect, crystal clear, uniform in color, and virtually free of impurities. But the precious stones are precious in nature. Once they become artificial products, they lose their aura..... This artificial crystal is quite popular in the market. For example, the crystal of XX Luo Shiqi is artificial and the price Not cheap. But what people buy is quality and brand. If consumers don't mind, it doesn't matter. After all, it is still beautiful. The most hateful thing is that many merchants claim that they are selling natural crystals. As a result, when they take home and look artificial, it is too much.
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