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Specific gravity: the weight is too light must be fake, so that glass, plastic, pressed particles and other imitations can be excluded, but now there are more crystals on the market, and its weight is almost the same as natural crystals, and it is not easy to find the true or false by hand test.
Refractive index: Most people like to look at crystals under the light, so they can't judge the authenticity of crystals can only look at the grade of crystals, because crystals have a high refractive index. We can put the crystal in a darker place, the color of the natural crystal will be very bright, and the color of the crystal will be relatively dull, lacking the sense of "spirit", only a slight brightness.
You can use natural white crystal and glass to compare and feel.
**: Crystal and natural gem-grade crystals have one thing in common, that is, the crystals are extremely transparent, almost completely without stone patterns, but the price is far apart. However, if he is really a natural gem grade, it must be more than 100 yuan, depending on the size of the crystal.
Chromatic aberration: Natural crystal has color aberration, and a piece of natural crystal cannot be uniform in color in every part, such as citrine, and there are very few natural citrine on the market. Natural citrine can be identified in water, natural citrine in the water its color is uneven, usually a piece of color radiation to the whole crystal is yellow, raising crystals is absolutely uniform.
Others: Cool to the touch, stone-grained crystals will basically not be fake.
Inner inclusions: There will be no fakes if there are inclusions, so you can be absolutely assured of buying crystals with connotations such as hair crystals and ghosts, because the cost of counterfeiting such things is very costly and laborious, and the effect is easy to be seen through.
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Upstairs, it's interesting to find it upstairs.
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Baby, I want to buy it too, hehe!
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How to distinguish real and fake crystals?
1.See: natural crystal in the formation process, often affected by the environment always contains some impurities, when observing the sun, you can see a faint uniform fine horizontal stripe or catkins like substance.
The fake crystal is mostly smelted with residual crystal slag and glass slag, polished and colored, and there are no uniform stripes and catkins.
2.Tongue licking: Even on dog days in the hot summer, licking the surface of the natural crystal with your tongue gives you a cold and cool feeling. Fake crystals, there is no cooling feeling.
3.Illumination: Natural crystals are placed vertically in the sun, giving off a beautiful brilliance no matter which angle you look at it. Fake crystals cannot.
4.Hardness: Natural crystal has high hardness, and it will not leave traces if you gently scratch it on the jewelry with a broken stone; If there are streaks, it is a fake crystal.
5.Check with a polarizer: Rotate 360 degrees under the polarizer and have four bright and four dark changes are natural crystals, and those that do not change are fake crystals.
6.Check with dichroism: natural amethyst has dichroism, false crystals do not have dichroism.
7.Check with a magnifying glass: If you check with a 10x magnifying glass under transmitted light, you can basically find bubbles as false crystals.
8.Hair inspection: If the crystal is placed on a hair strand, and the human eye can see the double shadow of the hair through the crystal, it is a natural crystal, mainly because the crystal has birefringence.
9.Detection with thermal conductivity meter: adjust the thermal conductivity meter to green 4 grids to test gemstones, natural crystals can rise to yellow 2 grids, while false crystals do not rise, when the area is large, rise to yellow 1 grid.
Hehe! The latter ones are more professional, and the previous methods are generally easier and more convenient!
What kind of crystal is better?
Choose the ones that are bright and bright, have a clear texture, and have large particles.
If you still don't know anything, you can go to "Crystal Love**" to see, there are a lot of introductions to crystal knowledge, I hope it can help you.
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Here are a few ways to identify real and fake natural crystals.
1.For harder crystals, the crystal can be engraved on the glass, if there are nots on the glass but not on the crystal, it means that it is really a natural crystal.
2.Really natural crystals are very transparent and have almost no impurities.
3.If the color changes after a long time, it means that it is not true.
Hope the above works for you!
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