Tourmaline-Tourmaline
Chemical formula Na Le Ca ....
hexagonal crystal system
Hardness 7.5
Specific gravity 3.06
Refractive index 1.62- 1.64
Origin Brazil, Sri Lanka, Madagascar
It is said that tourmaline crystals have as many as 15 colors, mainly colorless, rose red, pink, red, blue, green, yellow, brown and black. Among them, the top grade is transparent and shiny blue, fresh rose red and pink plus green composite color. Tourmaline has been loved by people since ancient times because of its bright color, variety and high transparency. Tourmaline is one of colored gems after diamonds, rubies, sapphires and emeralds. The appearance of tourmaline, like other crystals (in fact, like all gems and jewels), is based on the evaluation and selection of color luster, transparency, inclusions, defects and weight. However, due to the brittleness of tourmaline, attention should be paid to avoid collision when wearing it.
Tourmaline, also known as tourmaline, comes from the ancient Sinhalese word Turmali, which means "mixed gem". Legend has it that tourmaline originated in 1703. In Amsterdam, the Netherlands, several children played with stones brought back by Dutch navigators, and found that these stones not only had strange colors in the sun, but also were surprised that they had the power to attract or repel light objects such as dust or grass clippings. Therefore, the Dutch call it a lime stone. Until AD 1768, the famous Swedish scientist Ringnes discovered that tourmaline also has piezoelectricity and pyroelectricity, which is the origin of tourmaline's name. Up to now, tourmaline is commonly used in science to measure the change of luminous intensity and pressure. At the beginning of World War II, it was the only substance that could judge the pressure of nuclear explosion. Now, it is widely used in the optical industry.
In China, the word tourmaline first appeared in the classic "Shiya" in the Qing Dynasty: "The name of Biya Yao was recorded in China, but it was not published in detail. The Qing Dynasty canon says: Do concubines use Biya Ding? Yunnan has something to say, something to say, and something to thank and finish; Uji is also Bixia Creek. People in this world call it Biya or Bixi, but there is no question about the origin of its name, but it is undoubtedly heard in a foreign dialect. In later historical documents, we can also find names such as arsenic, tourmaline, bixiaxi, and broken evil gold. And the tourmaline we are talking about now is the common name of our jewelry industry. Legend has it that tourmaline is also the favorite of Empress Dowager Cixi. According to historical records, in the funeral of Empress Dowager Cixi in the Qing Dynasty, there was a lotus carved by tourmaline, weighing 3,628 yuan (about 5,092 grams), and a pillow made of watermelon tourmaline, which was worth 752,000 silver at that time.
In addition, in Japan, some Japanese institutions believe that tourmaline is very popular in Japan, because it has pyroelectricity (meaning that it will generate charges at the two poles when the temperature changes) and piezoelectricity (pressing the C-axis direction of tourmaline will generate charges at the two poles), so it can produce magical curative effects and improve natural healing power.
Almost all tourmalines with gem-grade value are produced from pegmatite granite, and tourmalines have a wide range of origins, but most of the tourmalines on the market now come from Brazil, as well as from Tanzania, Kenya, Madagascar, Mozambique, Namibia, Afghanistan, Pakistan, Sri Lanka, Italy, California and Myanmar, and even Xinjiang and Yunnan in Chinese mainland.
At present, the price of tourmaline in Paraiba is the highest. This special neon-red-blue-green gemstone was first discovered in 1989 in San Jose de Baatar, a small village in Paraiba, Brazil. Because of its difficulty in mining, small crystal and unclear mineral rights, disputes have continued in recent years and the price has remained high, especially in Japan. The retail price of high-grade tourmaline can reach $20 thousand per carat. Recently, a new Paraiba tourmaline mine was discovered in Parejas, Rio Grande do Norte, about 40 kilometers away from the old mine in Brazil, so the price soared again at the urging of the market. As for the tourmaline market in Taiwan Province Province, red and green (commonly known as watermelon tourmaline) are still the best sellers. Among them, the red tourmaline produced in Nigeria is the best-selling product in the market; Tanzanian tourmaline contains chrome green, which is as bright as emerald and is also very popular.
Crystal spirituality
Tourmaline has strong energy, and its main feature is to absorb energy. Because tourmaline has a variety of bright colors, it is easy to make people feel happy, advocate freedom, and broaden their minds and horizons.
Tourmaline can also stimulate creativity, bring endless inspiration and thoughts, calm, clear and concentrated power, make you act properly and go all out, and radiate the frequency of attracting love and friendship.
Tourmaline can also radiate an affinity magnetic field, which naturally attracts more people to your side and melts the gap between people.
Tourmaline itself has a high effect on metabolism and endocrine activities, and it can balance the internal gas field, make the elements of yin and yang opposite easy to combine and merge, and also resolve various conflicts and contradictions between people externally.