The characteristics of Qinghai materials: First, the "dry" oil-free degree, but Yuyou should be careful that some merchants put Qinghai materials into the oil, the time is ugly; the second is "white"; the third is "transparent" mostly transparent Shape... Qinghai material is more difficult to see, easy to color, not easy to polish, easy to orange peel, easy to dim
Russian materials are roughly divided into white leather and sugar (Russian) materials, which is the name of Xinjiang. Good Russian special white, but not the kind of white, white (lightly pan-green) with the material, the whiteness of the Russian material has no subtle and soft beauty (the real thing is clear at a glance) Russian material in kind - slightly light "felt The structure is obvious (visible to the naked eye). In addition, due to its molecular structure, the Russian material is not well polished. In most cases, the reflection has the feeling of shifting the class. This is also a direct method of identification.
There is a sugar-colored Russian material--Russian material is very special in sugar color, it is sauce color, there are many use it to pretend to be Hetian jade, and even use its combination of sugar color and white meat to make the surface of white jade with sugar to hide. White leather can also be colored, it is good to do, it is difficult to distinguish, high-grade Russian material because its whiteness is higher than most high-grade Hetian white jade, Russian material also has leather, but Russian leather Yan (more like ochre) and associated with thick stone skin, so please pay attention when distinguishing the skinned seed.
The skin color of Hetian seed material is thin and there is no stone skin. This is related to the genesis of the two kinds of seed materials. The original ore has the possibility of combining with the stone skin, but the stone skin strength is always inferior to that of jade, and the Hetian seed material is repeated by the Yulong River water. Sustained impact, different environments cause different degrees of separation, looseness is eliminated, and the rest is always solid, so the above characteristics of Hetian seed material can be summarized. Because of the absence of such environmental conditions, the Russian stone retains the original state of bonding.
Hetian material: Hetian jade's mineral composition is mainly composed of tremolite-yangshi. It also contains traces of diopside, serpentine, graphite, magnets and other minerals. Different colors such as white, cyan, black, and yellow are formed. Most are monochromatic jade, and a few have variegated colors. Hetian jade is oily or waxy and has a strong moisturizing effect. The good material has no porcelain. Hetian jade has different thickness due to different jade thickness. The whole is slightly transparent or translucent. The hand feels smooth and the hardness is generally 6 It is 7 degrees (the new mine and the poor texture is also about 5.7 degrees). Hetian jade is born in the rock at an altitude of 3,500 meters to 5,000 meters. After long-term weathering and stripping into pieces of different sizes, it collapses on the hillside and then flows into the river through rainwater. When the autumn river is dry, the jade collected in the riverbed is called seed jade, and the mountain material mined in the rock formation. The usual saying is: Hetian is five kilometers out of the big material, the middle out of the piece, the next five kilometers out of the small material and the probability of skin with the best quality is about 20 grams. The Russian material is tempered by the environment and is different from the Hetian sub-material. The hardships suffered by Hetianzi are harder and more complicated. The glaciers of the ancient glaciers are quenched and denuded. Because the crust changes with the glacial movements, they gradually form a stream of mountains and rivers, and they are exposed to the temperature difference. They encounter the torrents and rush into the rapids. Some were brought to the Gobi, and some were buried in the sand. Day after day, year after year, through the tens of millions of years of tempering, this life is achieved. Therefore, even if it is the same material, the Russian seed material can not be boring. The extraction effect of ice on jade is very effective. The original ore of Hetianzi is at an altitude of over 5,000, covering tens of meters or even hundreds of meters of ancient glaciers. Under different circumstances, the jade nature of birth is also different. Hetian jade should be more moist and crystal-clear, and it will be more oily. The Russian material changes in the opposite direction, the more playful and transparent (whitening and drying, placed on white cloth, white, but it is dry in the hand).
Printed Fabric is processed by high temperature printing and dyeing of grey cloth printing paper.
Advantages of printed fabrics
1. The pattern of the printed cloth is different in color, and it is beautiful and generous, solving the problem that only the solid color cloth was used before, and there is no printing.
2. Greatly enrich people's material life enjoyment, and the use of printed cloth is very wide, not only can be worn as clothing, but also can be mass-produced.
3. Good quality and low price, ordinary people can basically afford it, and they are loved by them.
Shortcomings of printed fabrics
1. The pattern of traditional printed cloth is relatively simple, and the limitations of color and pattern are relatively large.
2. It is not possible to transfer the printing on the cotton fabric. After the printing cloth is used for a long time, there may be discoloration.
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