How to distinguish the real from the fake crystal wool ?

Identification method: 1) Eye: 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 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 crystal is placed vertically in the sun, no matter which angle you look at, it can emit a beautiful brilliance. 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 crushed 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, and false crystal has no dichroism.

7) Check with a magnifying glass: Check with a ten-fold magnifying glass under transmitted light, and the bubbles that can be found can basically be determined as false crystals.

8) Check with a hair strand: Put the crystal 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 4 grids of green to test gemstones, natural crystals can rise to 2 grids of yellow, while false crystals do not rise, when the area is large, it rises to one grid of yellow.

Fainting, 1 Look at the rough stone, natural crystal is a hexagonal crystalline crystal system, and man-made is mostly flaked and strip-like.

2 Natural crystals have more or less inner inclusions, some cloud-like, flocculent-like patterns. If the crystal is flawless, the controversy is usually great.

3 What if this shop specializes in crystals? Or do you sell a lot of things? Just look at this shop is professional or flower arrangement.

4 You can also use your feelings to see if the store is sincere and trustworthy.

There is also the 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 crystal, and it is not easy to find the truth or falsehood 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.

When you buy it, you can take a look for yourself: put the crystal on a hair strand, 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 can also be filled with the tongue, it is more suitable for summer, there is a cool and refreshing feeling, you can also take a piece of gravel to scratch it, and it is good to leave traces without returning, hehe.

No matter how much you say in writing, you can learn more in practice. It's a matter of experience.

Look at the shine.

Bai: Whether the real jade is translucent or opaque, it has a warm luster, and it is normal for the internal dao to have a small amount of impurities or a cotton wool answer-shaped pattern; The color of fake jade is dry, gray and dull, and there are bubbles.

Hardness: Carved and scraped with a knife, the real jade leaves no traces.

Specific gravity: real jade feels heavy, and fake jade is light.

Listen to the sound: hang the jade with a thread in the air, hit it with a hard object, the sound of the genuine product is crisp and pleasant, and the aftertaste is melodious; The fake ones are relatively dull and dry.

Look at the fracture: Observe with a 10x magnifying glass, the fracture of the real jade is uneven, and the relatively fine structure can be seen; The fracture of the fake jade is neat and shiny, and it is often a glass imitation, and the fracture structure is rough and there is no waxy luster.