The process of jadeite original stone has experienced more than 60 million years of evolution, from petrified jade to jade color and then to jade skin. The mineral composition of jadeite is jadeite, which is a high-pressure mineral. It is located in the intense tectonic movement of alkaline metamorphic rocks in Myanmar, distributed in the blue amphibolite facies of regional metamorphic belt, and is the product of the first stage crustal plate movement.
Jadeite evolved into jadeite under regional metamorphism, that is, jadeite. But that is the primary stage of jadeite. Unlike jadeite, it has no color. No beautiful Fei and Cui. Regional metamorphism is a diagenetic process in which solid rocks are reformed under the influence of regional temperature and pressure rise.
In the second stage, jade was colored, and the second wave of strong orogeny in Myanmar, the rock strata were strongly squeezed and deformed, and strong folds, faults, magmatic intrusion and metamorphism occurred. At the same time, under the great tectonic stress, jadeite rocks have undergone strong dynamic metamorphism, accompanied by frequent hot slurry activities. This accelerated the recrystallization behavior of jadeite, resulting in substantial changes, making colorless jadeite minerals appear green and purple. This dynamic metamorphism can also make the original crystal structure harder, denser and more transparent.
Its color composition is "Ming", which comes from amphibole. It is the bright ions that overflow during the process of strong dynamic metamorphism that penetrate into jadeite, thus obtaining the color of jadeite.
Some jadeites have different colors, some are deep and some are shallow, which is caused by different crystal mineral structures. The better jadeite is hard, dense, with small gaps, and the solution cannot penetrate. It is difficult to spread, so there are colored flowers and floating flowers.
The older the species, the less color and the clearer the water, so there are no fish. For example, the crystal structure of bean varieties is coarse, the crystals are dislocated, and there are many gaps and cracks in the grain displacement. Because they are the same, all the developed solutions flow everywhere, covering the whole jadeite rock, which has a green performance. These colors have no obvious directionality and lines. By analogy, there are also block distributions, which are also full of colors.
These are what we usually call "bean color". Finally, jadeite jade becomes skin. In the late stage of supergene geology, the surface of jadeite has been weathered for a long time to form skin and fog, and some beautiful fog, including yellow or red fog, has become the "color" of jadeite. Here's what happened.
After another wave of optimization, the crystal particles of jadeite are filled with minerals. The chamber of secrets, so the quality has been improved. After geological process, influenced by the supergene environment, it turned from underground to ground, and also exposed in the supergene environment. After weathering, it falls out of the jade and becomes gravel, which is jade.
After handling, deposition and burial, the surface layer becomes a shell. Burying also affects the skin shell. The color and shape of the shell are different with the depth of burial. Generally, red, yellow and white skins are formed by shallow burial; The crust of black sand skin is generally formed by deep burial, and the temperature and pressure of buried strata are different. Hydrolysis and hydration of the crust surface alternate, and there is a kind of chlorite involved. The color deepens to form a black leather shell with gray-black and black as the main tone. Generally, this kind of jadeite jade with leather shell is of good quality. If the temperature is higher, it will turn into black wushayu, and the slippery shell, such as wax shell, is formed by the chemical action of high temperature and foreign body "magnesium".
The fog of yellow fog jadeite is also formed because jadeite is in an oxidizing environment and is infected by free oxygen soaked in surface water and soil water. The color of fog will vary with the depth of burial. Colors like jadeite are named after the fog of several colors. This color is not jade meat, so it cannot be called Fei. Only purple can be used as a fee. Green is emerald. These are fogs, not red flies or yellow flies.