The natural tourmaline is colorful and colorful. It is not only a healthy gem for the human body, but also an energy gem for evil spirits. It is more and more popular by people, but there are also many bad businesses in the market to deceive consumers. So how do you identify the true and false of natural tourmaline?
Home We want to be clear about natural tourmaline. In the jewelry industry, it means pure natural. The color has not been artificially changed. The crystal has no means of filling the radiation and filling the radiation. Instead, the tourmaline that keeps the original physical properties of the tourmaline is called true tourmaline, while others Classified as a fake tourmaline.
First, how to identify natural tourmaline and counterfeit goods
Many unscrupulous merchants often use crystal, fluorite, glass and other materials to counterfeit tourmaline, so the first step to identify the true and false of tourmaline is to distinguish natural tourmaline and counterfeit goods.
Crystal and tourmaline: mainly observe their color, generally purple is more common in the crystal, tourmaline is not purple, only purple, but crystal is not like red and green like tourmaline, so you can use between the two The colors are different to roughly identify the true and false.
Fluorite and Tourmaline: From the comparison of hardness, the hardness of tourmaline is 7.5 degrees Mohs, and the hardness of fluorite is only about 4 degrees Mohs. Both can be compared by hardness. Another point is that fluorite is often used as a multi-color material when posing as a tourmaline, and there is no purple in the tourmaline. Just as the multi-color of fluorite often appears purple, this is also effective in distinguishing between true and false fluorite and tourmaline. means.
Glass and Tourmaline: From the perspective of internal inclusions, there are often small round bubbles in the glass, which is not the case with tourmaline inclusions. There is also a way to pretend to be a tourmaline in glass. That is to use a burst of glass to pretend to be a relatively coarse tourmaline. This type of glass is usually dyed after bursting. Therefore, the color dyes are concentrated in the cracks, and the light transmission is easy to distinguish.
Second, artificial treatment of tourmaline and natural tourmaline true and false
The artificially treated tourmaline is mainly filled with glue. The filling technique is mainly used on some of the more crude tourmaline carvings and beads. Due to the poor permeability of the internal ice cracks and the coarser texture, this type of tourmaline can improve its permeability and cover some cracks and impurities by means of injection molding. The surface of the treated tourmaline also has a spider web etch similar to that of the jadeite B. When the treated tourmaline is not strong enough, the internal clearness is not good, and there is a colloidal mixed feeling.
In addition, from the color point of view, observe the overall clarity of the tourmaline and the extent of the body, the good tourmaline, the color is particularly bright, very thorough, and the worker's dyed tourmaline, the color is more stagnation, lacking the natural "Baoguang" of natural tourmaline. In addition, the tourmaline has a triangular cross section and a visible tubular wrap in the body.
Third, a simple way to identify the true and false of the tourmaline
1. After the temperature of the surface layer of tourmaline rises, it will produce electric ions. These ions can absorb dust and hair around. You can remove a tourmaline bead from the bracelet at home, rub it back and forth with cotton cloth for a few minutes, then touch the small piece of paper cut by scissors. If it can be sucked, it means electric heating.
2. Most of the natural tourmaline contains more inclusions. There are two kinds of inclusions in the tourmaline. One is a gas-liquid inclusion like a broken balloon fragment, and the other is a needle-shaped, thin tubular body. . Tourmaline also has obvious pleochroism. Looking at the tourmaline from different faces, there will be different color changes. But there will be no purple.
3. If it is a tourmaline faceted gemstone, because the transparency and internal structure of the tourmaline are quite good, in general, the high-quality natural tourmaline bare stone has almost no impurities and cracks in the naked eye, and its transparency is also very High! The high-quality tourmaline will not go to the glue processing. The high-quality mineral materials will almost always be made into the tourmaline faceted gemstones. Therefore, don't worry about the high-grade tourmaline gemstones being glued, but the bare stones are lower. It may be glued. And the tourmaline, which is generally used as a gem, is certified.
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