How is jade formed?

How is jade formed? There are many magical legends in the folks; geologists have always regarded it as a mystery. Some people think that jade and diamonds are formed in the depths of the earth's crust at several thousand degrees of high temperature and under high pressure. Actually, it is not; Geophysicists have done a lot of simulation experiments in the laboratory, combined with the actual situation of jade deposits found around the world. They believe that jadeite is not formed at high temperatures, but at very high pressures in medium-low temperature conditions. Subsequent metamorphosis.

The Myanmar government holds an annual jade auction, attracting many buyers.

Professor Iwakawa Ichiro of Tohoku University of Japan in the book "Gem" (1983), more specifically pointed out that jade is formed at 10,000 atmospheres and relatively low temperatures (200-300oC). We know that the earth is from the surface to the deep, and the deeper the temperature, the higher the pressure. However, jadeite is crystallized under low temperature and high pressure conditions. Of course, it is impossible to be in a deeper part. So where does the high pressure come from?

This high pressure is due to the squeezing force caused by the movement of the earth's crust. It has been confirmed that all areas with a distribution of jade deposits are areas with strong crustal movement.

There is another factor: igneous rock intrusions (medium-basic rocks) containing albite in places where jadeite is found. The chemical composition of albite is NaAlSi3O8, so it can be inferred that the jadeite is formed by the desiliconization of the rock containing sodium feldspar under medium-low temperature and high pressure conditions.

Jade is also known as Burmese jade. It is a jadeite produced in Myanmar. Japan, the Soviet Union, Mexico, and California have produced jadeite, but its quality and output are far less than that of Myanmar.

In the Myitkyina area of ​​northern Myanmar, the jade deposits have the largest reserves, and the gem-quality jadeite is mined very early and supplied to all parts of the world. Therefore, people only know that Myanmar has produced jade for a long time. Therefore, Burmese jade is synonymous with jadeite. Jadeite is a scientific name, while Burmese jade is a jargon of experts.

Jade is also known as Burmese jade. It is a jadeite produced in Myanmar. Japan, the Soviet Union, Mexico, and California have produced jadeite, but its quality and output are far less than that of Myanmar.

In the Myitkyina area of ​​northern Myanmar, the jade deposits have the largest reserves, and the gem-quality jadeite is mined very early and supplied to all parts of the world. Therefore, people only know that Myanmar has produced jade for a long time. Therefore, Burmese jade is synonymous with jadeite. Jadeite is a scientific name, while Burmese jade is a jargon of experts.