Jade is also known as Burmese jade. The judgment of jade quality or the identification of jade in Myanmar has a great relationship with the formation of jade. The jadeite formed in different environments has great differences in structure and texture. Looking at the dazzling array of jade ornaments, colorful, is simply a kind of beautiful enjoyment. Every time I think of this, Xiaobian has doubts. How is such a beautiful jade formed? Below is a small series of China Jewelry Merchants Network to tell you how the jade is formed. Jadeite is a dense block-like aggregate formed by the interlacing of numerous fine fibrous mineral crystallites mainly composed of jadeite. There are four main views on the formation of jadeite in nature: The first view is considered to be the desiliconization product of the residual granite slurry that the magma invaded into the ultrabasic rock under high pressure conditions. The second view is that the formation of primary albite into jadeite during regional metamorphism is formed; or it is believed that under the action of compressive torsional stress and low temperature caused by plate collision, albite first forms a blue flash with a lower degree of metamorphism. The stone schist is further transformed into jadeite. The third viewpoint is that the granite veins and the pale-colored gabbro-type veins are replaced by a hot aqueous solution with a high chemical potential of sodium at a pressure of 12 to 14 dry pa. The fourth viewpoint is based on the three-dimensional inclusion of water-methane-hard jade in jadeite. It is believed that jadeite is formed by the melting of near-hard jade silicate. It is believed that this kind of melt originates from the mantle of 300~400 km. Containing an alkali pyroxene layer. Aside from its geological origin, jadeite is a collection of jade. Its mineral composition can be very pure, such as pure hard jade rock of single mineral, or it can be multi-mineral, such as jadeite, pyroxenite, which is rich in other jadeite, hornblende and plagioclase. Wait. Therefore, the quality of jadeite is inevitably closely related to the combination of its mineral components, the tightness of the combination, the granularity, etc. It is these intrinsic factors that determine the external appearance of jadeite structure and transparency. Strictly speaking, most of the jadeites are not up to the gem level, they can only be called rocks. The real jadeite is the gem-quality soda pyroxene rock. The best quality pure jadeite is the hottest collection. The old pit glass is jade. Therefore, the formation of high-quality jadeite ore in Myanmar will inevitably go through the stage of diagenesis and jade, and some even go through the third stage of secondary transformation in the later stage of mineralization. Jadeite forms a crystal of jadeite, the most important component of jadeite, under certain conditions such as temperature and pressure (the plate colliding with the suture zone relative to the high-pressure and low-temperature diagenetic environment). Since the initial temperature is relatively high, the number of nuclei crystal nuclei formed is small, and the crystal grains are coarse, resulting in a large intergranular pore. At this time, the mineral aggregate formed is far from the gemstone level and can only be called hard jade rock. The jade crystal under the microscope has a stable chemical composition, mineral composition and structural structure of jadeite, forming a fracture on the west side of the plate suture zone, and is affected by the Indian plate extrusion and affects the right-slip. Influenced by the directional compression-torsion stress caused by the extrusion slip, the early formation of jadeite began to undergo power transformation. In the initial stage of deformation, the jadeite grain is plastically deformed, and subgrains are produced due to dislocation sliding, and dynamic recrystallization of fine particles occurs on the subgrain boundary to form a ridge-super-quartine rock. At the same time, the pressure-melting effect leads to jadeite. The grains are oriented in the direction of the vertical compression torsion stress surface, the pores between the grains are well filled, the transparency is greatly improved, and the optimum species of jadeite is gradually formed. Obviously, the pros and cons of the jadeite species are closely related to the degree of post-dynamic geological transformation. The stronger the transformation, the more obvious the effect of texture refinement and seed optimization. Afterwards, the intrusion of granite veins along the fault zone brought the coloring element Cr3+ into the hard jade lattice at a suitable temperature, replacing the A13+ to form an attractive green of jade. Some of the jadeites of Chengyu have to undergo a later transformation. The ore is exposed to the natural world and is ablated by weathering and falls off. The jadeite in the upper part of the ore body has a good quality under the action of water and rock reaction for a long time. They are firstly subjected to denudation and transported to the bottom of the mountain for accumulation. After weathering and other weathering, a special weathered hull is formed on the surface of the jade. That is, the emerald water stone, while in the original place, left a loose structure of jade, that is, the emerald rock. Therefore, the later transformation effect is likely to be one of the most important reasons for the quality of jadeite stone is generally higher than that of rock. In short, jadeite is formed through a series of complex geological processes under a special tectonic setting. Bao Jianfeng has been honed out. The tens of thousands of years of formation and transformation have made the high-quality jade that the world loves, and it is the creation of nature that has made the world rich and colorful.
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