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Xuan Ying provides methods of identifying the market of natural crystal

Natural crystal is a kind of precious stones, the ancient medical scientist Li Shizhen in the "Compendium of Materia Medica" called "dot", "Buddha stone". Use it carefully produced crafts a natural crystal necklace, wear, can have a magical effect: with eyesight, refreshing, convenient, fill dirt, blood pressure and other magical effect. Therefore, the use of natural crystal manufacture necklace, very popular with consumers. At present, the fake natural crystal necklace found in the market, this to the vast number of consumers to buy out a problem, so, how to identify true and false without instrumental natural crystal necklace? First of all, from the visual point of view, really natural crystal necklace, crystal bright, Hikaruzawa Youwa, skin contact, give a person with cool feeling.. Even in the three hot summer days, with the tongue lick natural crystal surface, also have cold and cool feeling. False crystal ornaments, false cool feeling lighter Second, from the optical point of observation and analysis, really natural crystal necklace as a shaft rotation, shaft in the sun, can release be riotous with colour brilliance, no matter from which angle, it can emit a beautiful luster, false cannot. Third, the analysis from the physical point of view, crystal necklace really, its hardness, density, refractive index and fake crystal necklace has a bigger difference. Really heavy, fake light, really Crystal Necklace hardness 7, refractive index is 1.54; while the false hardness of only 5.2 to 6.10, the refractive index of less than 1. Natural crystal hardness, with gravel gently in the jewelry under uniform, not leaving any traces; if left streak, is false crystal jewelry. Fourth, from the view of purity, natural crystal in the formation process, often by environmental impact on the total contain some impurities, some have different degrees of flaw and color inconsistencies, to observe the sun, can see the light even small stripes or catkin like substance. And false crystal by crystal slag, glass melting inferior, after polishing processing, colored imitation, no stripe, LiuXu of substance uniform. Fifth, I like natural crystal necklace, coated with a thin layer of oil, blue. There is no false, like glass white How to distinguish the authenticity of natural crystal? Crystal or color grade division, many factors affect the price of diamond crystal, unlike with 4C can determine, it is proposed that we should listen more to see more, to judge from the general market, the standard is a spar bigger is better, more transparent and better, the color is more delicate shape better, better (more typical as the six column crystal or crystal ore, there are special, such as ore powder is no six prism, the so-called market powder six columns are all artificial grinding out), but her love is the most important. Method when the choose and buy fake generally have the following: 1 double refraction method: take a black line or hair, with sticky tape is fixed on the white paper, the crystal on line, watching the black or the hair through the crystal, look at the past if refraction lines for 2 shadow is natural crystal, if has not had the refraction phenomenon, is a line of words, is non natural crystal. This method can distinguish the crystal and glass products, but the regeneration of artificial cultivation of crystal will double, unable to tell 2 field test: two natural barite respectively, with both hands thumb, index finger and middle finger and hand finger pinch, two when the distance of about 1-2 cm, slowly relative rotation and close to each other, can immediately felt a similar magnet attraction repulsion of mysterious power, especially in the crystal ball is the most obvious, non natural crystal do not have this phenomenon, including synthetic crystal. The 3 choice is not easy to imitate (such as crystal, crystal green ghost, amethyst, have the connotation, natural ice crack, the cloud and color change, or prefer slightly defective crystal In addition: Weight: weight too light must be false, so can eliminate glass, plastic, pressure particles, imitation, but now the market to support the large crystal, its weight is not much difference between with the natural crystal, hand test approach is not easy to find true and false. Refractive index: most people like to see in the crystal lights, so can not determine the crystal of truth can only see the level of crystal, because crystal has a high refractive index. We can put the crystal in dark places, natural crystal color will be very light, the raising of grain color is dim, lack of Pan "spirit" feeling, only a slight brightness. You can use the natural white crystal and glass to compare, feel. Price: raise grain and natural gem grade crystal have one thing in common, that is very transparent crystal, almost no stone, but the price is far, usually keep crystal hand bead can be cut into noodles, crystal transparent, but generally not too high a price. But if he really is a natural gem, certain price in more than hundred dollars, depending on the size of the crystal. Color: natural crystal color, a natural crystal impossible to every part of the color is very uniform, such as Huang Jing, are natural Huang Jing is less and less. Natural Topaz in the water can tell, natural Topaz show its color is not uniform in the water, usually a piece of radiation to the color yellow is the entire crystal, crystal dependent on the color is uniform. Other: feel cold, crystal stone basically no false. Package: a package material will not false, so buy Rutilated Quartz, ghosts have the connotation of the crystal can be absolutely assured, because the cost of such a thing forgery charges were a great effort, but out of
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