The origin of jadeite. The English name jadeite of jadeite comes from the abbreviation of Spanish plcodejade, which means a gem worn on the waist. In the16th century, jade was regarded as a gem for treating low back pain and kidney pain. Jadeite is a kind of pyroxene aggregate mainly composed of jadeite minerals, and its real scientific name is jadeite. It is called Emerald because it was not until the early Qing Dynasty that Emerald was transported from Myanmar to China through the second Silk Road. Hetian jade produced in China at that time was called jade. When Burmese jadeite flows into Yunnan, people can tell whether it is Hetian jade from China or jadeite, which means "jadeite not from China". With the passage of time, Cui Fei has become an emerald. Because of its uneven color, sometimes it is accompanied by red and green groups on the light color foundation, and the beauty of color is like red-feathered birds and green-feathered kingfishers. It is also very appropriate to use beautiful bird names to represent beautiful jade! Since then, jade has become synonymous with jade.

On "a", "b" and "c" of jadeite. As the saying goes, Emerald A refers to natural jadeite, that is, jadeite produced in nature, which is only processed and polished normally. B goods refer to jadeite soaked in strong acid and then vacuum-infused with epoxy resin. The materials used to make B goods are usually some raw materials with dirty background, yellow background and black background, or some rough and dry raw materials. After soaking in strong acid, the former can remove dirty color and some impurities, improve the brightness of jadeite, and then inject epoxy resin to fill some structural gaps corroded by acid; The latter is first soaked in strong acid to make the structure loose, and then injected with epoxy resin in vacuum to improve transparency, make "selling" better and obtain greater profits. The epoxy resin of B goods will age after a long time, and its aesthetics and durability will be affected. There are two main ways to identify B goods, one is visual inspection. Treated jadeite, because of the secondary color (yellow, etc. ) is bleached, the color is often unnatural and does not coordinate with the background color; In addition, in terms of luster, strong acid soaking destroyed the structure and injected glue, so the luster of B jadeite often showed waxy luster. The other is magnified observation, that is, under the microscope, many irregular turtle cracks and some molten pits can be seen on the surface, which is an important feature of bleaching and gluing jadeite. In addition, the interior of jadeite treated with strong acid is very clean, the background color is very clean, and there is no obvious secondary color.

C goods refer to jadeite that has been artificially dyed. Because jadeite is a polycrystalline gem, there are many pores and microcracks between particles. After slight heating, vacuumizing, dipping in dyes and other processes, the original colorless jade color becomes bright and unstable, and will gradually fade away after a long time. The common dyed jadeite in the market is usually dyed bright green, purple, red and so on. To get more profits by pretending to be high-grade jadeite with good color.

"Eight or three materials". It refers to 1983, a new mineral jadeite produced in Myanmar jadeite producing area. It is the lowest material with dry water, poor bottom, loose structure and rough crystallization, commonly known as "brick material" or "83 material". All B goods used to make jadeite and dyed jadeite have no commercial value if they are not treated. But it is also a variety of jadeite, and its mineral composition and physical optics are the same as those of normal jadeite. Just because the structure is loose, it is very rough. Therefore, it is easy to change its transparency after acid treatment, and it is also easy to fill with glue and add color.