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At present, there is no instrument for effective testing in the identification of jade, but using the scientific and cultural knowledge we have mastered, using objective scientific theoretical analysis, it is fully capable of effectively identifying the true and false of jade.
1. Jade materials widely used in ancient jade articles include white jade, sapphire, topaz, jasper, and jade jade. At present, there are quite a few newly developed stone materials and mineral materials used in counterfeit products, or fake yellow topaz with Huang Qiyan. In practice, it is necessary to grasp and distinguish the difference between the authentic jade materials and distinguish the old and new differences of the same material.
â–² Huang Yuyu. Often used to pretend to be topaz.
2, to understand the basic structural characteristics of various jade materials, and to know the hardness, density non-uniformity and permeability of jade materials. When mastered the basic material characteristics of jade jade can be analyzed later on in a particular environment and conditions, the length of time of burial, jade itself should influence caused, which oxidation corrosion characteristics, and to control the evolution of its various features law. The product is not based on the characteristics of the material, nor on the various characteristics of the real thing , but is based on the surface effect of the real product, which violates the laws of natural oxidation and evolution, and is essentially different from the real product.
â–²To master the law of the natural evolution of jade
3, to master the aging characteristics of the real jade materials. This phenomenon of aging and aging is re-cut and ground using new materials or old residues. The new process surface exposed after forming will produce significant chromatic aberration or damage the original oxide layer.
4. The difference jade material cannot be used as the basis for judging the authenticity of jade, because the same material used in the past millions of years has been used since ancient times. In the identification, only the identification material can be used as a single recommendation. According to the evidence, if the material cannot effectively confirm the difference, we should continue to search for evidence of the difference between the authenticity and other aspects.
5. At present, some jade variegated materials with extremely poor quality and extremely low price are used for counterfeiting, and artificially strengthened corrosion is formed after forming, resulting in extremely thick oxidative corrosion cortex on the surface of jade. This kind of cortex is easy to fall off and there is no clean and moist texture at all. This kind of flower variegated material is not used in ancient jade, but is a kind of stone used by modern deceit.
â–² Some fake things know the authenticity at a glance
6, to understand and master the jade painting style and performance style of the past, and master the jade styling style structure of each era. In forgeries, some jade confirmed from the true shape of the dummy structure, but some high imitation fake identification very difficult. In this case, it is necessary to search for the difference between true and false evidence from other aspects. Because the style of folk jade is extremely strange and complicated, it cannot be determined by the style of the instrument, but can only be used as a reference for the judgment of sensory effect .
â–² Qing Dynasty traces of the Stan jade
7. The perfect combination of craftsmanship and art of jade art, ancient jade perfectly reflects the craft effect. However, there are obvious defects and shortcomings in this aspect, either the structural shape is beautiful and the process technology is not able to achieve this effect, or the process design is flawed.
8. We must admit that the degree of mechanization will inevitably have different effects on the quality and standard of the products. Since the ancient times, the jade equipment process and tool materials have been continuously reformed and developed, so different process technologies have been produced in different historical periods. When we master the basic characteristics of the real thing, we will realize which parts of the modern counterfeit are not the right process, and which process technology is flawed. It is necessary to realize the semi-manual and semi-mechanized way that the jade processing method has been used since ancient times. In practice, it is necessary to analyze the process effect, which are caused by the performance of the mechanical equipment itself, and which are caused by the instability of manual operation. This aspect is true or false. On the other hand, it is necessary to have the ability to know some of the process effects caused by the difference in the level of jade grinding, to know the intentional manufacturing process error or some technical defects, and to compare the difference between the dead corners of the authentic jade craft .
The difference between the materials of modern processing tools and the composition of the abrasive materials and the traditions makes the process grinding of the lines of the lines significantly different. This difference is a cause equipment tools and materials, and modern equipment can not imitate. The processing and grinding of ancient jade articles mainly adopts the free sand type grinding method, which has obvious process difference with the fixed grinding type jade of modern products. It is necessary to master the rules of the ancient jade in the process of grinding, and the characteristics of various processing techniques, and compare the procedures and treatment methods of which parts of the product.
â–² modern jade carving tools
9. Understand the counterfeiting methods and techniques of counterfeit products, and master the various process effects of counterfeiting products using modern equipment and technology. It is necessary to analyze and master the difference of the glass light effect of the authentic jade, as well as the difference of the general bright jade, and analyze the difference in the technology and material of the light and the principle of causing the difference, thereby distinguishing the difference between the true and false brightness effects.
10. The ancient jade has a phenomenon of clever color and jade with color materials. However, this material has experienced long-term underground environment erosion on the original basis, causing local color material parts to be first oxidized and corroded. The characteristic law.
Most of the oxidized and etched parts of jade are caused by the hardness, density and corrosion resistance of a certain part, especially the jade crack caused by internal stress. This state will be first infiltrated or etched, and it is artificially manufactured with fake products. There are structural differences in the fake effect. Modern counterfeit products use the coloring, corner and dirty materials to smear the jade, especially the use of the material itself to smear the oxidized stone. This kind of counterfeiting has become the most important imitation tool. Such artifacts are the actual counterfeit parts hardness, density, structure and color, a fundamental difference with the real existence, which are necessary to identify materials and natural coloring heteroaryl scale replica fake, which is the real subject of corrosion Qin. The true ancient jade will suffer from the phenomenon of hardness change, chromatic aberration change, osmotic transition, etc., regardless of the oxidative corrosion, and the obvious penetration phenomenon, hardness change, chromatic aberration and transition of the product. It is necessary to grasp the characteristic law of the oxidative corrosion of the real thing in a wide range of practice , on the basis of which it is different from the artificial strengthening and the real corrosion of the jade.
â–² ancient jade suffers
11. Master the main features of the jade jade. The so-called jade jade pointed out that there was no clearing treatment after the soil, the jade itself adhered to various sediments, and the adhesion was extremely strong. The fake product is made by artificially attached to the jade watch. The adhesive density and cohesive force of the artificial adhesive substance are very poor. This is an aspect of distinguishing the authenticity. The jade jade should have no trace left by any artificial treatment.
12. The semi-living jade jade mainly points out that after the soil has been artificially cleaned, such jade articles have lost all kinds of unearthed features of the jade jade. Generally, some corrosion damaged or dead parts can leave parts of the deposited material, since some parts cleaning minor scratches occur, the process will produce a slight angular disability artificial phenomena. The counterfeit products of the semi-soil jade are mainly used to maintain the sharpness of the edge of the process in the process of manufacturing the surface oxide layer, and the adhesion of the deposited material at the dead corner is very poor. Pay special attention and have the ability to distinguish half-hole jade. There are a considerable number of counterfeits that currently mimic half-life jade.
13. The semi-cooked jade jade pointed out that after a few years or decades of collection, the feel and the degree of penetration did not reach a fairly mature level. Such jade textured surface oxidation and slight wear, slight edges bruising, some parts still remain dead angle sediments and various other features. This kind of jade must be comprehensively analyzed. The fakes of this kind of jade are mainly made by the ball oscillating equipment and the sandblasting equipment to produce the surface oxidized texture effect, which makes the overall structure and the corners of the process have a smooth transition. The counterfeiting of such jade is very difficult, and comparing with the real product will find many flaws in the counterfeit.
14. The cooked pit jade is a long-term collection. The craftsmanship of the jade has a fairly smooth transition and feels very good. In play, the human sweat, acids, bases, vegetable wax and the like penetrate into the depth of jade, jade making internal strengthening cross-trans incident refractive surface oiliness Jade through translucent, after a long artificial disc surface grinding will Jade Scratches overlap at different times, and some damage will result in a smooth transition of the residue. And this does not have time and counterfeit, and hence, can take measures to strengthen the surface brightness is counterfeit. At present, there are a certain number of fake jade pots, and the counterfeiting effect is generally poor.
15. It is necessary to master the various states produced by the corrosion of the product with hydrofluoric acid, because the poisonous gas remaining in such products is extremely harmful to the human body and cannot be placed in the room or worn around.
16, the collection of jade can not be limited only know the jade, must have the basic ability to identify the authenticity of sculpture, porcelain, painting, bamboo and wood corners, gold and silver bronzes, etc., because of the characteristics of other types of antiques regularities and jade are interlinked. To identify the real thing, we must first confirm the authenticity. Only by mastering the essence of the real product in practice can we have the ability to recognize the falsehood and further study and explore the cultural connotation. Do not take more self-enclosed collection mode.
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