How to buy a good jadeite when you purchase the jade original stone?
Last time we said the leather shell of the jade wool, today we are talking about the fog of jade. The fog refers to a layer of foggy opaque material between the outer weathering shell and the inner jade. It is actually a jadeite mineral. As a result of metamorphism, in short, fog refers to the layer of jadeite (weathered or oxidized), a semi-oxidized micro-weathered jadeite layer between the interior of jadeite (no weathering or oxidation) or meat.
The jade old field is divided into foggy jade and no foggy jade. It is roughly half of the autumn colors. Many laymen say that only the old stone is foggy. It is inaccurate. The fog is very mysterious. It is usually in winter and in summer. No, the foggy jade depends on the fog to determine the pros and cons of the jade meat, and the fog-free jade is used to replace the jade meat.
Foggy is divided into upper, middle and lower products and the worst products. The fog-free jade is also divided. The haze-free jade is mostly lime-shell and yellow-pod, which can reach ice and glass species, such as Damukan. Moses sand and foggy leather shell is bamboo leaf skin shell is generally yellow fog or white fog, this jade is also very easy to ice or glass bottom, foggy jade gambling is more sinister, foggy jade more than one Layer decision and control factors must be good sand and good fog, the foundation will be good, the sand is good, the fog is not good, the bottom is also failing, the sand is not good, the fog is not good, the foundation is generally shit It is.
Superior fog: white fog and yellow fog; medium fog: honey fog, red fog, cattle snow fog; lower fog: black fog, fog and a special case, that is, the skin is running, that is, the endothelium runs to the skin, if found running The phenomenon of skin, the meat quality must be the bottom ash, there is a special case, that is, the fog cover is not round, the bottom of the good fog cover is good, the place where the fog cover is not available.
It shows that this jade is not good from the bottom of the fog, and gradually transitions to a good bottom. Half and half are not good. The middle is getting better and worse. This kind of jade is sometimes difficult to gamble because the place where the skin is peeled is the best. Show performance, let you imagine
In addition, the use of fog is also a deep knowledge, involving engraving, picking knowledge, yellow fog and red fog (red skin thick), can take fog egg noodles, this egg color and water are first-class That is, the layer of fog runs out, and the sand is the crystal of the particles above the shell.
White fog, generally appearing under the yellow salt sand and black tungsten sand skin, the thickness is uncertain, but most of them are relatively thin, such as grinding the outer skin, revealing a light white white mist, indicating that the impurities are small and the foundation is clean. Certain transparency
If there is green under the white mist, it may be very pure green, and the bottom is matched with the value of the city. The white mist also indicates the old, the color of the stone in this fog is light, but once the fog is removed, the color will be thick. Up
Yellow fog, usually on the yellow salt sand or water stone skin, yellow fog often appears, the yellow fog system is very large, there are yellow, medium yellow, deep yellow, golden, old yellow and other colors, such as its birth on the top jade The use value of its fog can not be underestimated, it is a very good carving material.
Yellow fog, if the block has mildew flowers, once the pine flower is removed, the fog is very yellow, but the fog is wiped off, the color will be blue, and the yellow taste is insufficient. If it is a large piece of goods, it should be carefully considered, and some will be loose. I can't see the color, but the fog separates the color. As a result, I don't dare to gamble. In fact, when I wipe it down, it will come out.
Generally, red and yellow fog are caused by high iron content, while high iron makes emerald green dark. Yellow fog shows the existence of iron oxide, but it has not been highly oxidized. If it is pure yellowish fog, it shows impurity elements. Less, often appear green, but sometimes the blue-green tone produced by iron ions may enter the interior of the jade, there is also a slight blue-green green
Red fog, red fog has two kinds: a kind of reddish, a kind of bright red, this red fog can be used as a ring face, very top, but also a good material, red fog, generally speaking, the bottom gray is much. Most people don't like to gamble on red fog. At the same time, the red fog loves to run the skin and comes up to the skin. The most fearful thing is to run on the skin, and the fog runs through the skin with ten nine grays.
Black fog, black fog often appears on black stones, black fog can not be too dark, if it is too dark, jade meat may be blue, gray blue or black and blue, there will be black spots or other flaws in the flesh.
Black fog is mainly caused by a large number of internal impurities, and the transparency is poor. Some black fog will also appear high, but sometimes the water is very poor, the black fog is thick and thick, and the thick bottom is gray, but it will be high green and the color power is not enough. Black fog also has a high green color and a ground color
Honey fog, the color of its fog is like honey. This kind of fog means that the meat of jadeite must be very delicate and transparent. It is a good fog.
The blood of the cow, its foggy condensation and bovine blood, the ash of the cow's blood fog, if the outer skin has loose flowers, must not be cut, cracked, bottom ash, sputum, color cast.
Playing gambling stones must know the duality of fog. Some jade have pine flowers. If you can't see the color, it is the fog that separates the color. As a result, you don't dare to gamble. In fact, if you wipe it down, the color will come out.
If the outer skin is worn away, the white light is exposed to white, indicating that the impurities are small and the foundation is clean and has a certain degree of transparency. If there is green under the white mist, it may be very pure green, and the bottom is matched with the bottom. The value of the city, the white fog also indicates the old age, not all jade is foggy, the jade of the original deposit is basically no fog, mainly due to the strong degree of weathering, the emerald fog of the secondary deposit will be more obvious.
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