Dragon stone species? The land is transparent and delicate, and the color is even, which can be divided into deep-water dragon stone species and static dragon stone species. Deep-water dragon stone species: the texture is uniform and permeable, and the color is blue and black. Static water dragon stone species: the texture is uniform, the water is transparent, but the color is slightly blue.
2. Glass species: Glass species is the best grade of transparency in jadeite, also known as "water head", with pure and delicate texture, no impurities, cracks and cotton thread, and crisp sound quality, which is quite in line with the traditional saying of jadeite golden sound. Jade has high transparency and glass luster, giving people the overall feeling of being as clear and transparent as glass, belonging to high-grade jade.
3, ice glass species: slightly worse than glass species, slightly more transparent than ice species. The permeability of jadeite is between glass and ice, and the word was invented to describe this degree.
4. Ice species: the texture is similar to that of the old cellar species, colorless or less colored. The characteristics of ice species are that the outer surface has a good luster, translucent to transparent, clear as ice, giving people a feeling of pure and clean.
If there is a flocculent or intermittent blue color in ice jadeite, it is called "blue flower ice", which is a common variety in ice jadeite. Kethleen is often used to make bracelets or pendants. There is no obvious difference in value between colorless ice jade and "blue flower ice" jade, and its actual price mainly depends on people's preferences. The ice seed is an upper-middle grade or middle-grade jadeite.
5. Waxy ice species: Waxy ice species generally refer to species that are slightly turbid than ice species, just like ice with a little more impurities, and some scholars classify it as ice species. The brightness of glutinous rice jadeite is low, and many tiny impurities are often scattered inside jadeite. The internal structure is indistinguishable, and cotton is inside the structure, which gives people the feeling that it is not only turbid, but also not pure enough.
Waxy seeds with good transparency and good water head can reach the level of ice seeds. In order to distinguish ordinary waxy seeds, also called ice seed melting, the texture of waxy ice is very beautiful.
6. Waxy species: Waxy species is a term in the jewelry industry. Waxy species refers to the fineness of jadeite, and species refers to the texture of jadeite. Jade glutinous rice is delicate in texture, which means that the variety is older or older, and the texture is between transparent and opaque, which has a feeling of cooked glutinous rice.
7. Frozen beans: more transparent than beans, with better water head.
8. Bean seed: Bean seed is a very common variety in the jade family. Its name is very vivid: the crystal particles of bean seeds are large, mostly in short columns, like beans arranged inside jade, and the interface of these crystals can be clearly seen by the naked eye.
Because of the rough grain, the appearance of jade is inevitably rough, and its luster and transparency are often poor. Jade business circles call it "water dried", and the green one is called bean green. Bean seeds belong to low-grade varieties in jadeite, and the price is not high. Bean seeds can be subdivided into coarse beans (particle size greater than 3mm), fine beans (particle size less than 3mm), sugar beans and ice beans.
Extended data;
Identification method of jadeite;
1, gloss. After soaking in strong acid and alkali, jadeite has loose structure, and there are pits on the surface before it is full, which makes it spread and its luster weaken. After adding organic fillers such as resin or plastic, jadeite often appears resin luster or wax luster, or glass luster mixed with resin luster and wax luster.
2. color. Because the structure of jadeite has been destroyed, the original optical properties have also changed, and the color distribution of jadeite in B Goods Expansion has no sense of hierarchy. Although the green color of jadeite treated by this method is still the original color, after soaking in acid solution, the background color turns white, the green distribution floats, and the orientation of the original color is also destroyed, which looks unnatural.
3. structure. After the jadeite is corroded by strong acid and alkali, some substances are brought in and out, and corrosion is formed on the surface and inside along the mineral crystal, resulting in internal connected cracks. Under the irradiation of transmitted light, we can see the crisscross cracks inside. Under the condition of reflected light, the corrosion pits or cobweb network structure on the surface are clearly visible.
4. Surface features. The hardness of jadeite treated by this method is quite different from that of jadeite itself. There are obvious gullies in the primary cracks, and the fillings are obviously lower than those on both sides. Many cracks form crisscross gullies. "
Cements or residual bubbles can be seen in the big "ditch". The surface of jadeite treated by bleaching and filling with better processing technology is very smooth, and there is no such phenomenon, which needs more careful observation and judgment.
5. Density and refractive index. Most jadeites that have been bleached and filled have slightly lower density and refractive index. The density is 3.00 ~ 3.43 g/cm, and the refractive index is about 1.65 (spot measurement). However, due to the complex mineral composition of jadeite, the density and refractive index of some natural jadeite may be low, so the density and refractive index can only be used as reference data, and usually cannot be used as a basis for judging whether jadeite is filled.
6. Fluorescence. There is no or weak strong ultraviolet fluorescence, and the fluorescence distribution is uniform or patchy. Most of the early "B-goods" jadeites have fluorescence. Short wave: weak, yellow-green or blue-green (blue-white). Long wave: medium to strong, yellow-green or blue-white, but the jadeite treated by this method usually has weak fluorescence intensity or no fluorescence.
7 Zoom in and check the release. Magnification inspection is an effective method to identify this kind of jadeite, which can be divided into surface observation and internal observation.
8. Thermal reaction: the "B-quality" jade is carbonized after being heated at 200 ~ 300℃.
9. Knock reaction. After bleaching and filling, the structure of jadeite is destroyed and mineral particles are filled with colloid. Therefore, it will make a dull sound after tapping, which is obviously different from the crisp sound of natural jade (this method is mainly suitable for the identification of jade bracelets).
Reference source; Baidu encyclopedia-emerald