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In recent years, diamonds and jade have been sought after by people, and colored gemstones have always been low-key. However, with the public's in-depth understanding of colored jewellery, diamonds and jadeites are no longer the only ones. In addition to the fact that rubies and sapphires remain firmly established, the tourmaline, which has been used as a foil, has finally turned into a safflower from the green leaves and becomes a jewel. The new darling of the market has attracted the attention of more and more investors. Not only has the sales volume increased significantly, but the price has also soared. At present, the average price of 1 carat tourmaline is at least 1,000 yuan.
While tourmaline concern by collectors, tourmaline fraud means endless, and crystal burst staining is one means of forgery. According to Zhao Xiaochuan, an expert at Beida Gem Identification Center, because the price of crystal and agate is relatively low, and the price of tourmaline is relatively expensive, and it has become a popular favorite in recent years, the price is rising all the way, so some illegal traders often use crystal and agate to imitate tourmaline. . The specific method of falsification is to first heat the crystal and then quickly put it into the low-temperature dye water of different colors, so that the crystal bursts due to thermal expansion and contraction, and the color of the dye is immersed in the crack of the crystal.
Therefore, if you see that the color is a so-called "tourmaline" that gradually fades from the outside to the inside, you can basically judge it as a fake; of course, some counterfeit tourmaline colors are completely saturated, and you can't see the change in color depth, but you can still It is identified by the fact that its internal color is completely distributed along the crack. In addition, the cracks inside the natural tourmaline are irregularly distributed, and the cracks inside the pseudo tourmaline produced by the above method are relatively evenly distributed.
As a kind of tourmaline, tourmaline has been welcomed by many collectors in recent years with its bright colors, good health care and great appreciation space, so the damage of tourmaline counterfeit products to collectors and collections is undoubtedly huge. of. It is recommended that the majority of Tibetans accumulate relevant identification knowledge, so as to avoid being deceived when purchasing tourmaline. Of course, if the collectors are not sure whether the purchased tourmaline is genuine or not, the safest method is to go to a professional appraisal agency to find an expert for identification.
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