The world's tourmaline is produced in many places, such as the red tourmaline of the Russian Urals, the yellow tourmaline of Sri Lanka, the multicolor tourmaline of Brazil, and the colorless tourmaline of the island of Elba, Italy. In addition, the United States, Australia, Sweden and Madagascar also produce high quality tourmalines. In recent years, Xinjiang has discovered pink, purple, green, blue-green, sky blue and Other colorless tourmalines, as well as beautiful colorful tourmalines. Here is a detailed introduction to the origin of the tourmaline:
China: China's Shandong has sapphire produced. The sapphire of this property is famous for its large size and crystal integrity. The Altay region of Xinjiang is a region rich in gemstone production in China. China's high-quality sea sapphire and tourmaline are produced here. Topaz, garnet, apatite and golden beryl are produced. It is also an excellent commercial grade in China. Emerald origin, but the current production is not large. In addition, Lianyungang, Jiangsu Province is the hometown of crystal in China, with a large number of high-quality crystals.
Myanmar: Myanmar is located in Southeast Asia, on the collision boundary between the Asia-Europe plate and the Indian Ocean plate. The intense geological activities from ancient times have created the status of Myanmar's global jewellery market today. The royal blue in the top quality of sapphire, the ruby The high-quality color - Pigeonblood, is produced in this country, so the national stone of Myanmar is also designated as ruby. In addition, high-quality spinel, green tourmaline and olivine are also produced in Myanmar. Since Myanmar was a Chinese genus in the Ming and Qing Dynasties, it often tributes high-quality gemstones to China's princes and nobles. At present, most of the jewelry materials collected in the Palace Museum of China are sourced from the country.
Brazil: Brazil is the world's largest producer of gemstones, with color gemstone production accounting for around 65% of world production. The quality of the produced gemstones is large and high quality, such as: red tourmaline, topaz, sea sapphire, emerald, etc. The country also produces a mysterious Paraba tourmaline with electric light, the color is beautiful. The price per carat can reach tens of thousands of dollars, still far from meeting market demand.
Sri Lanka: Sri Lanka is famous for its gemstones! If you are interested in looking at the outline of the country on the map, would you think it is like a pear-shaped gemstone pendant? The gemstones from Sri Lanka are: sapphire, ruby , gold emerald, rose tourmaline, moonstone, sea sapphire, garnet, etc., almost all high- and medium-grade colored gemstones are produced in Sri Lanka, and the quality is very good, so it is also known as "Gem Island" . Sri Lanka has a wealth of gem resources, which is related to its special stratum structure. In addition to the gem mines in the Jaffna peninsula in the north, Sri Lanka has a rich gemstone resource in the mountains, river valleys, plains and hills all over the country.
Madagascar: Madagascar is located in the South Indian Ocean. It is rich in flora and fauna and beautiful natural scenery. It faces the southeast of the African continent across the sea. It is nine times the size of the island of Sri Lanka and the fourth largest island in the world. Almost all of the colored gemstones found on Madagascar have at least 30 varieties on the market: emeralds, rubies, sapphires, gold emeralds, sea sapphire, beryl, beryl, watermelon tourmaline... ... Although many mining areas are found late, Madagascar is becoming a new but important gemstone producing area.
4C standard for tourmaline gemstone evaluation
Frequently, some friends often ask a question: Why are the bracelets of the tourmaline beads much larger than the cut tourmaline gemstones? Let’s talk about the tourmaline gem today. The tourmaline’s mineral name is tourmaline, but not all The tourmaline can be called tourmaline, and it can't be considered that all tourmaline is a gemstone. As the top-ranked tourmaline in colored gems, it follows the 4C standard rating as well as diamonds. The 4C classification is based on the color, clarity, cut and carat weight of the gemstone to assess the quality of the gemstone. This specific assessment standard refers to internationally accepted standards for everyone to see:
From this table, friends can surely see what kind of tourmaline is a good gem. Caimo Stone also believes that when you look at this watch, you will know why the so-called "Bixi" bracelet on the market is so cheap! In fact, the generation of gems is extremely difficult, and a little problem will have a major impact on its market price!
Generally, tourmaline is a high-grade gemstone, among which red tourmaline is more expensive, so there are also counterfeit goods. There are two common types of counterfeit goods:
One is a red glass imitation; the other is the artificial coloration of the colorless tourmaline.
In fact, the other method is relatively simple. "The natural tourmaline has a flash, and the glass products lack this kind of treasure. The artificially colored tourmaline is dull and unnatural, so it is not difficult to identify.
Identification of tourmaline
1) The color of tourmaline: tourmaline is more expensive in red and blue, yellow and green are more common. In the choice of inlaid tourmaline jewelry, red, blue, green is better, the color is required to be even and beautiful; in the tourmaline necklace and tourmaline bracelet, the color is better, the color of each bead can be different, with red, yellow, Blue, green, purple and other colors;
2) Transparency of tourmaline: tourmaline requires crystal clear, the more transparent the better the quality, do not have obvious fog or opacity;
3) The purity of tourmaline: tourmaline is relatively brittle and prone to cracks. At the same time, it contains a large number of inclusions. The presence of a large number of cracks and inclusions will affect the transparency, color and fire of tourmaline, while the interior is very pure tourmaline. It is also rare and belongs to the top grade. When selecting, try to choose the inside clean;
4) Pay attention to the choice of tourmaline with special properties: tourmaline is rich in color, and more valuable is the presence of two or more colors on the same tourmaline, namely bicolor tourmaline or multicolor tourmaline, and inner infrared green watermelon tourmaline It is also more precious; in addition, the tourmaline cat eye belongs to the top grade in the tourmaline. There is also a kind of red treasure tourmaline, because the output is small, the color is rich and precious, but often the purity of this tourmaline is not good.
Although there are many places in the world where the tourmaline is produced, the good tourmaline all the way to the mountains and the thorns come to us. If you are lucky enough to have a tourmaline, you must cherish it and care for it.
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