The difference between Tielongsheng and dried green jade
When the iron and chromium in the jadeite increase, the magnesium and aluminum parts of the jadeite are replaced by iron and chromium. The jade color is rich and the water head is slightly worse, which is what we call the iron dragon.
Good iron dragons are jadeite, because more than 80% of them are jadeite, but some of them are made of sodium chrome pyroxene due to the replacement of chromium and iron.
As for some very dry iron dragons, I don't think it belongs to the jade in the narrow sense.
In fact, it is easy to understand. Simply speaking, dry green is relatively dry, coarse particles, not easy to polish (low gloss); Tielongsheng (also known as Tianlongsheng) has a relatively uniform texture, and has a relatively high head (high gloss). some).
Tielongsheng Myanmar jade material eight grades:
Level 1: The color is all green, the transparency is high, and it is a particle-like aggregate. The jewelry is exquisite, the water head is 3 points, the white flower and the crack are not, and it belongs to the glass type.
Level 2: The color is all green, similar to the first level, in the form of a particle-like aggregate, the transparency is slightly lower, the water head is 2 points, and the white flowers and cracks are less.
Three to four levels: the color is all green, translucent, fine grain - medium grain, 1 point of water head, white flowers, cracks.
Five to seven grades: the color is all green, slightly transparent - opaque, the grain is "granular", the head is half---no, there are white flowers, dry green.
Eight grades: the color is uneven green, the grain is thick, opaque, white flowers, cracks, and is a dry green.
Is the dry green Burmese jade and the iron dragon jadeite the same variety of jade? The conclusion is 'No'. According to research by relevant experts, the main component of dry green is sodium chromite.
Because the content of chromium is too high, the pyroxene has become a species, and the iron dragon is not the same. The main ingredient is jadeite or chrome jadeite, but the particle size and structure are different, which causes some iron dragons to have insufficient water head. Professor Guo Shouguo and others have studied that the short water of the iron dragon jadeite is thicker and more sparse in structure.
It is popular before the liberation of the green species, and it is cut into thin pieces, which is called the wide film on the market. Very crisp and not durable. The time that Tielongsheng discovered was not long.
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