玉的介绍（Jade introduction）.docVIP

玉的介绍（Jade introduction） Is in the world (especially East Asia) classification of a gem in each area has been widely welcomed, in mineralogy jade divided into jadeite (also known as jade, the main ingredient is NaAlSi2O6) and nephrite (tremolite, actinolite category, due to the different chemical composition and showed a variety of colors, the kind of more, but the main ingredients are Ca2 (Mg, Fe) 5Si8O22 (OH) 2). According to the Asian gems Association (GIG) research, there nephrite jade, jadeite branch. Nephrite is Chinese traditional jade, jade name from nephrite, due to the Xinjiang Hetian region produces best, often called Hetian nephrite. The hardness of nephrite is generally 5.6-6.5 degrees, is opaque or translucent, color is divided into the following categories: white jade, topaz, jade, Jasper, Mo Yu (Qing Baiyu), and the flower jade and jade sugar. Jadeite jade is produced in Burma. Whether it is soft jade, jadeite, and they are very hard texture, color is very bright, it is known as the king of rock in the world. The value of the jade has been a lot of money, and then processed through craftsman carved, became a very valuable treasure. Jade with the development of the times, it gradually formed a jade culture. Broad sense also includes jade stone, the so-called fake jade, white marble, Beijing Jade etc.. In addition, the broad sense of the Jade also includes diamonds, agate, crystal, amber, turquoise, coral, pearls and other precious stones. The ancients believed that jade has the meaning of the following aspects: 1. architect said: that jade can represent the world of gods and emperors Quartet, to enhance communication between God and man, and God will convey information, is the master of the universe and human fortune. 2. world essence said: this view that jade by the essence of all things, the formation of magical power. There are 3. jade five said: the classification has detailed notes no longer expressed. 4. evil than Chong said: This is a supernatur