How to personally distinguish natural amethyst

1. Specific gravity: The weight is too light, it must be fake. This way, glass, plastic, pressed particles and other imitation products can be excluded, but now there are more crystals on the market, and the weight is almost the same as that of natural crystal. The method is not easy to find true and false.

2, refractive index: Most people look at the crystal like lighting, so can not judge the true and false of the crystal can only see the level of crystal, because the crystal has a high refractive index. We can put the crystal in a darker place, the natural crystal color will be very bright, the color of the crystal will be dim, lack of pan-feel, only a slight brightness. You can compare it with natural white crystal and glass and feel it.

3, the price: crystal and natural gem-quality crystal have a common point, that is, the crystal is very transparent, almost no stone, but the price is very different, usually the crystal hand beads will be made into a cutting surface, crystal pass Transparency, but the price is generally not too high. However, if he is really a natural gem grade, the price must be more than 100 yuan, depending on the size of the crystal.

4, color difference: natural crystal has color difference, a piece of natural crystal can not be uniform in each part of the color, such as huangjing, the market's natural citrine is very rare. Natural citrine can be discerned in water. The color of natural citrine in water is uneven. Usually, a piece of color radiates to the whole piece of crystal, which is yellow. The crystal is absolutely uniform.

5, other: cold touch, stone crystal will not have a fake; natural crystal touch will have a greasy feeling, and synthetic crystal or glass will feel cool.

6, the inner package: there is no fake inside the package, so the purchase of crystal, ghosts and other crystals with connotation can be absolutely assured, because the cost of forging such things is very expensive and laborious, and the effect is very easy Being seen through.

7, the general natural crystal will have cotton or ice cracks inside, but there may be bubbles in the synthetic crystal or glass.