The English name for ruby ​​is Ruby, derived from the Latin word "Ruber", meaning red. It is a color-quality, pure-quality gem-quality corundum (Al2O3), which is red to pink due to its composition containing chromium (Cr). The higher the chromium content, the brighter the color. Ruby has a hardness of 8.8 to 9, which is the hardest gemstone in the world except diamonds. Ruby is mainly produced in the deep metamorphic rock series of marble, basalt, gneiss, granulite, mica schist, aragonite, vermiculite and aochang pegmatite, and the strength of the stratified plagioclase complex. Among them, due to the influence of geographical conditions, there are not many high-quality rubies in the world, and they are concentrated in the southeastern countries of Asia. Most of the rubies that are currently traded on the international market are from Myanmar, Sri Lanka and Thailand. These places are also very different in the production of rubies due to different geological forms. Ms. Mao Jiewu, a senior ruby ​​expert and Chairman of Lauder Jewelry, gave a detailed introduction to the characteristics of rubies from various places. 1. Burmese Ruby: When it comes to the highest quality ruby, the first thing people think of is the Burmese ruby. It is true that Myanmar is the most famous place for rubies. The 167-carat ruby ​​in the British crown and the 84 ruby ​​buttons in the Iranian crown are made of ruby ​​in Myanmar. In particular, the ruby ​​of the "pigeon red" produced in the Megumi area in northern Myanmar is the crown of ruby. The characteristics of Burmese rubies are that the color distribution is uneven, often with a faint floc shape, also known as a "molasses" structure, and is rich in rutile inclusions. At present, the ruby ​​mining rights in Myanmar are controlled by the Myanmar military. The annual mining volume is very limited, so the Myanmar ruby ​​on the market is expensive. Mogu is the main ruby ​​producing area in Myanmar. Most of them are pigeon blood red, rose red, pink, and the color is bright but uneven. It is often seen that the straight ribbon is observed from different directions with the naked eye, and two different colors are often seen. The fibrous rutile inclusions contained in the gemstones are good for honing into the face of the star ruby. 2, Thailand ruby: Thailand is also an important producer of ruby, Thailand ruby ​​most of the color is dark, red to black, rare inclusions, common fingerprint-like inclusions and lotus-like inclusions. In addition, Thai rubies are almost missing rutile inclusions, so there is no star ruby ​​variety. Because the color is too deep, the price is not high. 3, Sri Lanka Ruby: The characteristics of the gemstone are similar to those of the Burmese ruby, and it is also produced with high-grade rubies. However, the color is lighter, mostly pink, and the transparency is relatively large. The interior contains a large amount of rutile and zircon inclusions, and the transparency is also good. 4, Vietnam ruby: color between Myanmar and Thai ruby, the overall color is deeper than the Burmese ruby, and shallower than the Thai ruby, mainly in purple and light purple. Transparent to translucent, except for a handful of faceted stones, most of them are used as curved gemstones. 5, China Ruby: mainly Heilongjiang, Xinjiang, Qinghai, Anhui, Yunnan and other provinces, with the best ruby ​​in Yunnan, but with the Myanmar Red Treasure and Sri Lanka Red Treasure grade is still relatively large. Nano Floral Print Fabric,Polyester Print Nano Fabric,Stock Polyester Fabric,Nano Print Thin Fabric SHAOXING TUNING INTERNATIONAL TRADING CORP. , https://www.tuningtex.com