So far, no scientific instrument can accurately distinguish the difference between Qinghai material, Russian material and Hetian jade. Therefore, the country is also vague in this definition, and the term "Hetian jade" is used in general. However, it only represents jade species and does not represent its origin! However, we all know in the industry that the authentic price of goods between Xinjiang Hetian jade and Qinghai materials and Russian materials is far from the selling price. However, existence is both truthful! Well! Let's discuss it with you today: the identification of Qinghai material, Russian material and Hetian jade!
One: the contrast of gloss
(1) Qinghai material: Appearance gives a kind of "thief light", that is, the gloss is slightly porcelain! (2) Russian material: Most of the general Russian material's gloss is biased toward waxy luster and also slightly porcelain! A little better can also appear grease luster. (3) Hetian jade: oil and luster is obvious, giving people a feeling of being very soft and very comfortable. The contrast of the above is mostly from the experience of the eagle's own combat. To talk about, because the above materials are exactly the same in the identification indicators of gemstones, so the more information is based on the practice of this piece. We should look more, more contrast.
Two: the contrast of colors.
(1) Qinghai material: Most of the Qinghai material is grayish white~ waxy white! The white is ash, giving people an unclear feeling. (2) Russian material: some Russian materials have a very pale pink in the white Also, most of them have a pale yellow color, which is the color of the sauce, which is the color of the "fresh autumn yellow" that is the freshest. This light yellow color is slightly different from the sugar color in Hetian jade. Moreover, the overall color of the Russian material is cold and stiff. It may be because the latitude is higher, so the color tone is colder and stiffer. (3) Hetian jade: The general Hetian jade will be green, and the whiteness is very good. Hetian jade will be yellow in white, but this very pale yellow tone is somewhat different from the sauce of Russian, and Hetian jade is a bit like The yellow tone of the fat in the fat sheep.
Three: the contrast of transparency
(1) Qinghai material: 1 Its transparency is relatively high. The transparency is higher than that of Hetian jade. It is caused by wollastonite. The higher the mass fraction of wollastonite in nephrite, the better the transparency. 2 Qinghai materials are often accompanied by the appearance of water lines and water lines, and the local transparency is uneven. Among them, “water line” and “water dew” are distributed in the form of veins, strips and clumps, arranged in parallel. Caused by tremolite fibrous crystals. (2) Russian materials: Most of its transparency is: opaque, which is closer to Hetian jade. (3) Hetian jade: Transparency: opacity ~ micro-transparency!
4. Comparison of oil and hand
(1) Qinghai material: the oil is relatively poor, it seems to be dry and tender! "Perfuming" is not strong. If you use the hand plate, it looks very embarrassing and difficult to revitalize! This may be due to the structure of Qinghai nephrite, even grain size. Thick, the texture is not delicate enough, the common "sugar crystal", "ice crystal" structure, so it is slightly "nen". (2) Russian material: "perfusate" is good, but, with the hand plate, the oil is relatively slow, and the long-lasting feeling is always so sultry, that is, the gloss is not soft, and the feeling is still Very strong. Also, the oil is always out! The scientific analysis of this phenomenon is: Russian material due to the medium-fine particle-like crystal structure of the soft jade output ratio, the mineral particle size is not uniform, so the appearance is the texture The degree of exquisiteness is not enough, the "oiliness" is poor, the light-transparent observation is strong in graininess (relative to Hetian jade), and the gloss is slightly porcelain. (3) Hetian jade: Most of the "perfusability" is very strong. If you use a hand dish, it is easy to produce oil. After a long time, the surface of the jade becomes very moist, very oily and very fulfilling! This phenomenon The scientific analysis is: Hetian jade structure is a typical felt-like interweaving structure, the mineral particles are very small, generally about 0.001mm, which is expressed in appearance: fine texture, "oily" strong, "rice grain" is weak.
Five. Comparison of hardness.
To be honest, the difference between these materials is not great. However, when the young eagle used to watch a teacher and cut the raw materials of Tian Yu, he told the young eagle: Hetian, who is generally "perfuming" After the jade is cut out, the oil on the cut surface is very strong, and when it is cut, the spark splash is very high! The general Qinghai material and the Russian material do not have this phenomenon! Among them, the Qinghai material gives people a feeling that the hardness is not enough. The reason is: Qinghai nephrite is mostly micro-leaf-like crystal structure, the crystal grain size is slightly thicker, and the mineral crystals are not tight enough, so the toughness of jade is also slightly lower; if it is Russian, it has not been verified. For the hardness point, only the friends who really cut the material will have a deeper understanding, the average fan, even if you listen.
6. Comparison of surface features
This point is mainly for the difference between Hetian jade and Russian materials. Because of the medium-fine grain-like crystal structure, the grain size is not uniform, and this structure causes it to be difficult to be polished. Therefore, in most cases, the reflection has the feeling of shifting the class, that is, the undulation is more obvious, which is also the identification. The direct method of Russian materials. In the case of Hetian jade, the mountain material is also a feeling that these classes can be refuted. However, because the mineral particles that make Hetian jade are very small, the feeling of Hetian jade is very inconspicuous, and more often it is like emerald A. The orange peel structure in the goods, and it only appears in the mountain material.
7. Comparison of cotton wool
This point is mainly for the difference between Hetian jade and Qinghai. Now some friends say that the cotton spots of Qinghai are isolated and the particles are relatively large; and Hetian jade is relatively small and locally distributed more evenly. One point, the eagle has specimens on hand, but, is it universal? This can only be said that the benevolent sees the edge, and the wise sees wisdom!
