Identification method of crystal crafts have artificial crystal and natural crystal 2, here the identification method:

① see: natural crystal in the formation process, often by environmental impact will always have some impurities, to observe the sun, can see the light is uniform and fine stripes or catkin like substance. And false crystal by crystal slag, glass melting inferior, after polishing processing, colored imitation, no uniform stripe, LiuXu of substance.

The tongue licking: even in the three hot summer days, with the tongue lick natural crystal surface, also have cold and cool feeling. False crystal, no cool feeling.

The light: natural crystal stand in the sun, no matter from which angle you look at it, it can release beautiful luster. False crystal are not.

The hardness: natural crystal hardness, with gravel gently in the jewelry under uniform, not leaving any traces; if left fringe, is false crystal.

The polarizing microscope examination: in the next turn 360 degrees polarisers have stud four dark changes is the natural crystal, no change is false crystal.

The two color check: Natural Amethyst have two color sex, false crystal no two color sex.

We use a magnifying glass check: the magnifying glass in the transmission light check ten times, can find the bubble can be basically as false crystal.

To check with the hair: the crystal in a single hair, eye through the crystal can see hair double shadow, it is natural crystal, mainly because crystal has the double refraction.

With thermal conductivity detector: thermal conductivity meter to adjust to the green 4 case test gem, natural crystal can rise to yellow two case, and false crystal does not rise, when large area rose to yellow when a.