Tourmaline The most common use of fluorite and glass as a tourmaline, the fluorite used for counterfeiting may not have been tested by radiation. The amount of radiation exceeds the standard, and the human body suffers from radiation for a long time, which affects sleep and causes disease. The most common processing method: tourmaline glue, some merchants will glue in the raw stone of tourmaline, making it look more transparent. However, the tourmaline stone produced by this method is not transparent enough compared with the natural tourmaline. It seems that there is always a misty feeling inside the stone. Simple identification: A tourmaline without a trace of texture is likely to be glass, filled or painted. amber One is that unscrupulous merchants melt small pieces of granular amber at a high temperature and reshape it into large pieces of amber to throw high prices. Such fraud is difficult to identify with the naked eye and must be sent to a professional organization for identification by spectroscopic instruments. One is that the shape and texture of the resin are similar to those of amber, but the market is less than one percent of natural amber. This is a fake, and the cost of tens of dollars is sold at a high price of several thousand yuan. Simple identification: heating the tip of the needle close to the gem, the true amber can smell a faint pine flavor; in the domestic mainland market, there will rarely be natural amber wrapped in animal specimens, similar to the styling, most of which are synthetic. Tanzanite Tanzanite, in order to change the appearance of high temperature or radiation, the modified tanzanite will reduce its collection value. There have been news reports that a piece of tanzanite has been valued at 300 yuan after high-temperature color change. Simple identification: the angle of rotation will have a blue to purple gradient, and the changed tanzanite will be blue no matter how it is turned. Powder crystal The most popular colored stones such as powder crystal, citrine, and amethyst are in the scope of this kind of falsification. It should be noted that natural spar is slightly impurity, and natural crystal spar is more synthetic than sunlight. color. The natural spar will be worn more and more brightly, but not artificially. This also makes the synthetic gemstone lose the important meaning of companionship. Simple identification: put the crystal on a hair, the human eye can see the double shadow of the hair through the crystal, it is natural crystal, mainly because the crystal has birefringence. Caibao jewelry has gradually become a part of people's life. After all, it is still not accurate enough to use the naked eye test. When purchasing, remember to ask the merchant to provide the test certificate, or get the authoritative inspection department to detect it. More comprehensive knowledge of jewelry knowledge and recognition can focus on China Jewelry Merchants Network! Changxing Xinyang Textile Co., Ltd. , https://www.xinyangtextiles.com
