In the jade market, some gems and jades are often mixed with some exquisite artificial jades. Therefore, I'm afraid you are most concerned about the identification method of jade, which will play an important role in preventing you from being cheated by jade merchants in the future. The reliable methods of discrimination are: look, listen and test.
Look, it mainly depends on the crystal transparency, the transparency of real jade is strong, and the oil luster is bright; Listen, the sound of real jade is clear and crisp, on the contrary, it is dull and dumb; In the test, the real jade scratches on the glass, leaving scratches on the glass, while the jade itself is not damaged at all.
Common fake jades include plastic, colored glass, marble, electrochromic fake jades, synthetic jades made of jade powder and crystal with salt water, and jadeware imitated with nitrate. Their identification methods are also different.
The texture of plastic is lighter than that of jade, the hardness is poor, and it is generally easy to identify. Colored work is also easy to distinguish. As long as you get the light or check in the sun, you will see many bubbles in the glass.
What is more difficult to distinguish is the electrochromic fake jade. After electroplating, the low-quality jade is coated with a beautiful emerald green appearance, which can easily be mistaken for real jade. At this time, it is necessary to observe carefully. If there are some green and blue cracks on it, it is a fake jade. Because electroplating will leave cracks, experts call it "spider claw". It is also said that if the electrochromatic pseudojade is placed in hot oil, the electrochromatic color will fade and return to its original appearance.
The synthetic jade made of jade powder, crystal and salt water is dark colored Laokeng jade. The identification method is simple, that is, their specific gravity is different. The proportion of natural jade is 3.3-3.4, while that of synthetic jade is only 2.8. Use your hands to weigh the weight, or use a balance to weigh it.
The jade ware imitated with nitrate is more white and moist than jade. The ancients said, "Jade is higher than nitrate." That is, white jade should be considered as advanced like nitrates. It can be seen that nitrates and jade are difficult to distinguish. However, the truth is different. As far as color is concerned, white jade is often bluish in white, while pure white jade is rare, while nitrate is pure white. As far as jade is concerned, jade is warm and delicate, like grease and cream. Although nitrate is also warm and moist, there is inevitably a thief light in its lustre. White jade is a natural product, and it is difficult to have a uniform constitution. There are jade tendons and flowers in it. If the nitrate is artificially made, it has no such appearance. The white jade is solid and has no bubbles to find. No matter how well the nitrate is processed, there are often bubbles and air holes exposed. If we know these items clearly, we will not regard nitrate products as jade.
The quality of jade should be identified according to its color, quality and nature. Whether it is white jade, topaz, sapphire or jasper, its jade color must be bright, and the one without evil, grey and mottled is the best. As far as the nature and quality of jade are concerned, it is required to be fine and white, pure and without impurities. No matter what color the precious jade is, the finer it is, the better it will be. Jewelry made of jade is suitable for people of various personalities and ages. Whether a beautiful young girl or a graceful young woman, wearing a string of sparkling diamond necklaces and a pure and crystal jewel eardrop or bracelet will look brilliant. To identify jade, it is mainly to prevent the use of nitrate as white jade. The identification can be carried out in terms of color, jade property, fracture, impurities, specific gravity and sound.
