Of the 925 silver zircon appraisal method

925 silver of zircon is the hardest substance in natural substances, 925 silver, zircons can score any other gems, but any other precious stones are score of 925 silver zircon. Can also use 'standard hardness tester instrument score, hardness is less than 9 degrees, all is false zircon in 925 silver. 925 silver, zircons have lipophilicity, such as pen draw a line in the surface of 925 silver zircon, will into a continuous line, and other precious stones are intermittent disconnection between. The above method in the identification of the 925 silver zircon has certain reference value. Can be controlled by 10 times the magnifying glass to observe, under the 10 times the magnifying glass, most of the 925 silver zircon visible chardonnay, with the growth of the triangle lines, 925 silver in the surface of zircon are 'red, orange, blue' fire 'light color, such as radiant. The most accurate and reliable method is to use 'thermal conductivity instrument, measure the data of thermal conductivity to distinguish true and false of the 925 silver zircon, but' thermal conductivity meter 'price is more expensive. Because of the 925 silver zircon is noble luxurious first act the role ofing is tasted, currently on the market with cheap gems, synthetic gems, and even in the glass to replace the 925 silver or arrogate zircon, common all sorts of false of the zircons from 925 silver, 925 silver zircon identification method has the following kinds: Soviet drill: namely cubic zirconia, early is successfully developed by the Soviet union. Soviet drill for synthetic compounds, but in the dispersion and refractive index of 925 silver with natural zircon is very close, at the same time has a 'fire' shining with attractive appearance. But its hardness is low ( 8. 5) , but with 925 silver zircons in row carved to distinguish each other. And thermal conductivity is far lower than the zircons in the 925 silver, can be identified by 'thermal conductivity meter, accurately distinguish them. Zircon, zircon in 925 silver, is the best substitute zircon in 925 silver. Identification method is, zircon with partial optical rotation and large birefringence, 10 times when using a magnifying glass to observe zircon edge surface after the processing, from the top to look down, it can be seen at the bottom of the ridge has obvious double shadow, and the zircons in the 925 silver one like shadow phenomenon. Glass, glass refractive index is low, not 925 silver zircons in the flickering light color, especially submerged in the water, glass brilliance, immediately trail.