How to choose the real black tourmaline when purchasing
Black tourmaline is dark to pure black and is an opaque tourmaline. It is usually an iron-rich or titanium-rich variant and one of the most common types of tourmaline. It is often produced in the contact zone of granite and in crystalline schist, gneiss and phyllite in the role of gasification agents. In the international market, the price of the bright red and bright blue tourmaline is the highest, and the red and green two-color and rose-red, emerald green tourmaline is also very popular in the market, and the price is higher. In the choice of inlaid tourmaline jewelry, the color is even and beautiful; in the Necklace and bracelet, the color is better, the color of each bead can be different, with red, yellow, blue, green, purple and other colors; charm Pandora's color is more abundant, and more valuable is that there are two or more colors appearing on the same tourmaline, that is, two-color tourmaline or multi-color tourmaline, and the inner-infrared green watermelon tourmaline is also more precious; in addition, the tourmaline cat eye belongs to tourmaline. The top grade.
Black tourmaline is one of the 14 types of tourmaline. Because of its strong ability to absorb black peony, it enhances the gas field and makes people more confident. Therefore, black tourmaline is also known as “Fujingâ€, and it is often used in solemn occasions abroad. Now in the gem market, all kinds of gems are dazzling. How to identify the true and false of black tourmaline is a problem that consumers often encounter. The following methods will allow you to pick the real black tourmaline when you purchase, so you must study hard so that you can not be deceived.
First, judge the good and the bad by the gloss of the black tourmaline. The price of black tourmaline with different gloss is different. The brighter the black tourmaline, the higher the value. In addition, according to the physics knowledge, let us know that the natural black tourmaline will absorb fine dust after being rubbed and electricity, and thus darken, and the fake black tourmaline will not. From this point, you can judge the true and false of the black tourmaline. Second, touch with your hand or skin. Because the black tourmaline has good thermal conductivity, it is hot and fast. Therefore, the black tourmaline is held in the hand. If the temperature of the black tourmaline does not change much, it may be false. Third, the weight comparison. Natural black tourmaline, dense, with the same size of black tourmaline bracelet in hand, the natural black tourmaline bracelet is heavier than artificial counterfeit. Fourth, observe the appearance of the black tourmaline. The natural black tourmaline is crystal clear and generally has a growing texture inside, which is the most obvious difference from artificial products. The black tourmaline is also cut according to its natural structure when it is made. The good unions show the brightness and fire of the black tourmaline.
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