Hetian jade seed material won the public's love with its white and warmth, coupled with its limited resources and rich profits, the imitation of Hetian jade seed material appeared on the market. At the same time, people's material life has been continuously improved and sightseeing tours of domestic and foreign tourists have prompted the rapid development of Hetian jade industry in China, and its market demand has been expanding. Because the Chinese have given it its culture and character, this culture is in line with the characteristics of the Chinese people's implicit and modest, so from the ancient times to the present and Tian Yu is one of the objects that collectors are eager to pursue. It is precisely because such a large number of imitations of Hetian jade seed products are flooding the market, it is especially important for collectors who are just getting started to distinguish the authenticity. There are mainly the following methods for identifying the imitation Hetian jade seed material.
Identification characteristics The characteristics of natural Hetian jade seed material are very different from their imitations, and their performance is mainly in terms of shape and color.
(1) Shape: Natural Hetian jade seed material has the characteristics of round shape, good roundness, fine texture, luster of oil, very smooth section, felt-like appearance in magnified view, and numerous fine pores formed on the surface under natural conditions. Whether there is "sweat pores" is the key to distinguish between true and false and Tianyu seed. It is generally seen that the traces of natural abrasion and collision of Hetian jade seed material will leave some cracks and collision pits of different sizes, such as “nail nailsâ€; the color of the crack is deeper than the surrounding color, but the difference is not large, showing a gradient In transition, generally the crack is filled with oxide or formed by oxidation. The imitation Hetian jade seed material is made by using modern jade carving tools to process mountain materials and imitate river porting and polishing, and its form has certain differences. In addition, natural Hetian jade seeds with a large block size are very rare, and medium block sizes (20-50 cm) are rare.
(2) Color: Hetian jade seed material has been milled for millions of years in the riverbed, and has been combined with factors such as weathering, hydrolysis and atmospheric circulation. The skin color is a mixed color of the primary color and the secondary color formed by the different surrounding environments. The primary color reflects the internal quality of jade; the secondary color is the transformation color of the original color on the basis of the original geological effect. It is divided into colorless and colored, and the skin without color is mostly mountain water, and the color is the skin. Color, skin color is flesh color. Most of the skin of Hetian jade seed has a thin layer of tan or brown skin, which is caused by oxidizing conditions. Common seeds are white, gray, brownish yellow, grayish green, grayish blue, black, etc., with very little red. The skin color has various colors and is named after the color, such as "chicken bone white", "glutinous rice white", "sprinkling gold skin", "maroon skin", "autumn pear skin", "tiger skin", "deer skin" and "black skin". The shape of the jade skin is different, and it is vein-like, cloud-like, and scattered. The two pieces of the same quality, skin color and skinless color are much higher than the latter.
Therefore, in recent years, there have been more and more fake skin and Tianyu seeds on the Hetian jade market. The color of Hetian jade seed imitation is usually too thick, floating, stagnant, unnatural, single color, the color of the crack is concentrated along the crack or ridgeline, and the color difference is large, there is no gradient transition; sometimes It can be seen that it has directionality, and the mesh is dry and does not moisturize. In the area of ​​the fake leather is the jade loose place, called the dead skin, which is faded or discolored by boiling water.
The imitation methods of Hetian jade seed materials vary, and the effects are not the same. There are many differences in the details between the natural seed material and its imitation. The difference between the shape and the color can be observed by the naked eye. In the process of identification, it must be carefully observed and comprehensively considered, and more similar contrasts should be accumulated to accumulate practical experience and walk on the collection road. Farther.
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