Tourmaline has the characteristic of attracting or repelling light objects (such as dust, grass clippings, etc.), which was once called "ash-washing stone". Later, scientists discovered its industrial use such as piezoelectricity and thermoelectricity, so they had the title of "tourmaline." Tourmaline is still widely used in industry. Bright colors can be used as gems, which are called tourmalines in China.
Some people think that tourmaline is a kind of crystal, which is wrong. The composition of the crystal is silica, and the chemical composition of the tourmaline is very complicated. People can see a lot of synthetic crystals on the market, but rarely see synthetic tourmalines.
Many countries in the world produce tourmalines. A rare blue tourmaline was discovered in the state of ParaÃba in Brazil. This is the famous "ParaÃba Tourmaline". This tourmaline is a transparent, clear water blue with excellent texture and eye-catching. It is known as the “Brazilian Sapphireâ€. The United States is known for its high-quality pink tourmaline; the high-quality red tourmaline produced in Russia is known as the “Siberian rubyâ€; Italy is known for its colorless tourmaline.
The main producing areas of China's tourmaline are Altai, Xinjiang, and Ailao Mountain, Yunnan. The color is rich and the quality is relatively good, but the yield is not large. Therefore, most of the tourmalines in the domestic market are imported from abroad.
The tourmaline is very rich in color, red, green, blue, colorless, black, and so on. In the international market, bright red, rose red, and bright blue tourmalines are the most valuable. The more red is bright, the blue is pure, the higher the value, the better the price of a tourmaline can reach several thousand yuan a carat. Red and green two-tone and emerald green tourmalines have also been very popular in recent years and have high value.
The red and green bicolor tourmaline, also known as the watermelon tourmaline, is not very rare. But because of the good color, many people will choose this kind of tourmaline. So what kind of watermelon tourmaline is good? Good watermelon tourmaline, red and green should be bright, red and green, the best boundaries are clear, not blurred, just like watermelon rind and watermelon æ³¾æ¸, æ³¾æ¸ distinct.
One point that needs to be explained here is that there is a popular saying that the magnetic field generated by tourmaline has a health-care function, which is only a means of publicity for merchants. The electromagnetic field of the tourmaline gemstone is quite small and has little effect on the human body.
Although the tourmaline has a lot of production areas and a lot of reserves, the high-quality tourmaline with bright colors, high clarity and large volume is very rare. The demand for colored gemstones in the domestic market has increased year by year. The reason why the tourmaline is sought after in colored gemstones is because the color of the tourmaline is colorful, crystal clear, and large in size. Compared with rubies and sapphires, the price is much cheaper and can satisfy different prices. Age, the needs of different consumer groups.
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