2010年5月19日星期三

Jade is How's that?

What are the main reasons for the formation of emerald? Jade is How's that? There are many magical folk legend; geologist've been referring to it as a mystery, it has been considered as emerald and diamond, are deep in the crust several thousand degree heat and high pressure conditions, crystal formation, it is not true; the United States many Geophysicists have done a lot of simulation experiments in the laboratory, combined with jade deposits found around the world, the actual situation, they believe that jade is not formed under high temperature conditions, but in the middle ─ pressure at very high temperature conditions Deteriorating causes.
The Government of Myanmar jade auction held every year, attracted many buyers. Tohoku University, Professor Ichiro Sunagawa, "saying the stones" (1983) was published a book, more specifically pointed out that the jade was 10 000 at atmospheric pressure and low temperature (200 - 300oC) formed. We know from the surface to the deep Earth, The depth of the more higher the temperature, the greater the pressure. But Jade is under high pressure at low temperature crystallization, of course, impossible in the deeper part, then the pressure really come from? This pressure is due to crustal movements caused by the formation of extrusion pressure, has now been confirmed that the distribution where there are emerald deposits in the region, are more intense crustal movement zone.
There is another factor: the formation of any place where jade found both sodium feldspar igneous intrusion (in ─ basic rock). The chemical composition of albite as NaAlSi3O8, so you can guess ─ Jade is in the low temperature and high pressure conditions, sodium feldspar from the silicon to the role of the rock formed. Jade is customary, also known as Myanmar jade, jadeite produced in Burma, Japan, the Soviet Union, Mexico, California, Deng Jun births jadeite, but quality and output is far less than Myanmar. Area north of Myitkyina in Myanmar, the largest jade deposits in reserves, have long emerald gem mining, the supply of the world.
So people a long time before Burma produced only know jade, jadeite therefore as a synonym for Myanmar jade, and jadeite is the scientific name, and the Burmese jade is the expert jargon. Habits, also known as Burma Jade Jade is jadeite produced in Burma, Japan, the Soviet Union, Mexico, California, Deng Jun births jadeite, but quality and output is far less than Myanmar. Area north of Myitkyina in Myanmar, the largest jade deposits in reserves, have long emerald gem mining, the supply of the world. So people a long time before Burma produced only know jade, jadeite therefore as a synonym for Myanmar jade, and jadeite is the scientific name, and the Burmese jade is the expert jargon.

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