At first glance, see fake 粉, powder ç —ç£²
Bright and white as jade, the texture is smooth and delicate, with a pearl-like luster, is the most beautiful and fashionable decoration of all shellfish. According to its color, texture, hardness, etc., it ranks first among organic gemstones. It has been favored by people since ancient times and is one of the most sought-after accessories for modern young people. It is a great thing to be able to have a string of bracelets and necklace ornaments. For more information, please pay attention to http://chequ.cnjiaju.com/ç —ç£² official website
However, because the raw materials of the cockroaches are very difficult to obtain, the quality of the cockroaches is low, and the value of the cockroaches is soaring. Therefore, it is inevitable that some people will take fake or even artificial cockroaches to deceive the collectors. Therefore, it is necessary to master some knowledge of authenticity and falsehood.
How to tell if you are true or false? In fact, as long as you master the following "five look", it is not difficult to distinguish between true and false, you can also identify the old man in those various kinds of beads.
1. Look at the color discrimination, true and false, white, white and brown, with a bright and clean appearance and a pearl-like luster on the surface; false-twisted with white stone or crushed shell powder or white stone powder It is white and flawless, white and dull, shiny and unnatural. The surface of the bead has a fine texture, which means its growth in the deep sea. The luster is delicate and micro-transparent. The golden yellow is the same as the milky white. The false enamel is white and dull.
2, look at the texture to distinguish between true and false ç —ç£² is natural growth, carefully observe whether the texture is natural, that is, the texture of the two beads is not the same. Its mineral structure is mainly aragonite, with a layered structure, the thickness of a single layer is 0.5-1.5mm, the layer is clear and dense; the false ç —ç£² has no natural growth pattern, and there is no obvious layered structure under the magnifying glass.
3, look at the weight of the identification of true and false ç —ç£² density of 2.70g / cm? 3;, the hardness is generally 2.5-3.0 degrees, part can reach 4 degrees. Try to rub your weight with your hand. If it feels very heavy or too light, it may be unnatural.
4, look at the crack identification ç —ç£² true and false old ç —ç£² must have cracks, and the thickness, direction, length and disorder of the crack, no more consistent. Under the magnifying glass, you can see that the crack is yellow everywhere.
5, look at the size of the identification of true and false due to certain conditions at that time, the size, roundness and lightness of the old bead, and there are certain differences, can be discerned with the naked eye. False enamel beads are mostly the same size, roundness and weight, often giving a sense of uniformity and perfection.
As long as it is a natural gem, it is impossible to find two completely identical individuals in the world. Perfect observation If two bead lines are exactly the same, it is certainly not naturally formed. It may be that the shell is ground into powder. . However, there are also numbers like white porcelain, there is no grain, but there will be natural scars.
6, powder pressure ç —ç£² to distinguish between true and false powder pressure is a common means of falsification, it is necessary to give everyone a popular science. Especially the cheap white bracelets on a treasure. I saw a 9.9 yuan white enamel bracelet in a group purchase network. It can be said that the color is scary. The people inside the squat can see that it is smashed.
How is powder compaction done? It is usually broken into powder with shells or mussels, and then pressed and pressed. Mostly based on pure white.
So how do you tell the powder pressure? If you are always concerned about the online friends, you should know that there is a natural texture in the past. The pressed enamel is untextured, and the color is very white, without any transparency, and without the brilliance of the shell. The natural enamel texture is clearly visible, especially under the light.
Natural enamel has obvious texture lines
The natural enamel is very obvious under the illumination of the light.
Powder enamel has no texture, nor is it natural white.
Powder enamel has no texture, nor is it natural white.
The powder is not visible under the lamp and the natural texture is not visible.
The powdered enamel that has been opened is still without texture and is obviously pressed.
If the price of the cockroach you bought online is more than ten or twenty, and it meets the appeal characteristics, you can conclude that it is smashed.
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