Identify crystal real and fake tricks

Natural crystal is a kind of gemstone. The ancient medical scientist Li Shizhen called it "water jade" and "buddha stone" in the "Compendium of Materia Medica". It is a natural crystal necklace made of finely processed crafts. After wearing it, it can have a magic effect: it has the magical effect of eyesight, refreshing, facilitating, replenishing the blood and lowering blood pressure.

First of all, from the intuitive point of view, the real natural crystal is bright and bright, the gloss is soft, and it touches the skin, giving people a cool feeling. . Even in the hot summer days, using the tongue to lick the surface of natural crystal jewelry, there is a cold and cool feeling. Fake crystal jewelry, fake cool feeling is light, really natural crystal necklace, like a surface coated with a thin oil color, cyan. No, it is whitish like glass.

Second, the refractive index: Most people look at the crystal like the light, so can not judge the true and false of the crystal can only see the level of the crystal, because the crystal has a high refractive index. You can compare it with natural white crystal and glass and feel it.

Third, the double-refraction method: take a black line or hair, stick it on the white paper with a tape, put the crystal on the line, watch the black line or hair through the crystal, and see if the reflection is 2 lines It is natural crystal. If there is no refraction, if it is still a line shadow, it is not natural crystal. This method can distinguish between crystal and glass products, but artificially grown regenerated crystals will still be double-lined and cannot be distinguished.

Fourth, from the perspective of physicochemical analysis, the true crystal, its hardness, specific gravity, refractive index and fake crystals have a big difference. It is really heavy, the fake is lighter, the true crystal hardness is 7.00, the refractive index is 1.54, and the false hardness is only 5.2 to 6.10, and the refractive index is less than 1.00. The natural crystal is hard, and it is lightly scratched on the ornament with gravel, leaving no traces; if there are streaks, it is a fake crystal jewelry.

Fifth, from the perspective of purity, natural crystals are often affected by environmental influences, and some have different degrees of inconsistencies and colors. When viewed from the sun, you can see a faint uniformity. Small horizontal stripes or catkins. The fake crystals are often smelted with crystal slag and glass slag. After polishing and coloring, there is no uniform streaks or catkins. Such as Huang Jing, the natural citrine on the market 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.

Sixth, the specific gravity: the weight is too light, it must be fake, so as to exclude glass, plastic, pressed particles and other imitation products, but now the market is more crystal-grown, its weight is almost the same as the natural crystal, with the hand The test method is not easy to find true and false

Seventh, the magnetic field test method: the two natural spar are pinched by three fingers of the thumb, forefinger and middle finger respectively. The distance between them is about 1-2 cm, and the relative rotation is slowly and close to each other, and immediately there is a similar feeling. The wonderful power of the magnets to attract each other, especially the crystal ball is most obvious, non-natural crystals will not have this phenomenon, including synthetic crystal.

Eighth, the price: the crystal and the natural gem-quality crystal have one thing in common, 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 Transparent, 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.

Ninth, choose crystals that are not easy to imitate (such as hair crystal, green ghost, amethyst, intrinsic matter, natural ice crack, cloud and ribbon change, or prefer a slightly sinuous crystal, crystal with inner inclusion is generally not There will be a fake, because forgery of such things is costly and laborious, and the effect is easy to see through.

In addition:

Crystal still has the color grade, which affects the price of the crystal. It is not like diamonds can be judged by 4C, so it is recommended that you still have to listen more and compare more, in order to truly judge, the standard on the market is the larger the spar Well, the better the better, the more delicate the color, the better the shape is better (such as hexagonal column crystal or crystal hole ore, etc., there are also special, for example, the powder crystal ore is not a hexagonal column, the so-called powder on the market The crystal hexagonal columns are all manually ground), but your favorite is the most important.

Natural crystal is a kind of gemstone. The ancient medical scientist Li Shizhen called it "water jade" and "buddha stone" in the "Compendium of Materia Medica". It is a natural crystal necklace made of finely processed crafts. After wearing it, it can have a magic effect: it has the magical effect of eyesight, refreshing, facilitating, replenishing the blood and lowering blood pressure.

First of all, from the intuitive point of view, the real natural crystal is bright and bright, the gloss is soft, and it touches the skin, giving people a cool feeling. . Even in the hot summer days, using the tongue to lick the surface of natural crystal jewelry, there is a cold and cool feeling. Fake crystal jewelry, fake cool feeling is light, really natural crystal necklace, like a surface coated with a thin oil color, cyan. No, it is whitish like glass.

Second, the refractive index: Most people look at the crystal like the light, so can not judge the true and false of the crystal can only see the level of the crystal, because the crystal has a high refractive index. You can compare it with natural white crystal and glass and feel it.

Third, the double-refraction method: take a black line or hair, stick it on the white paper with a tape, put the crystal on the line, watch the black line or hair through the crystal, and see if the reflection is 2 lines It is natural crystal. If there is no refraction, if it is still a line shadow, it is not natural crystal. This method can distinguish between crystal and glass products, but artificially grown regenerated crystals will still be double-lined and cannot be distinguished.

Fourth, from the perspective of physicochemical analysis, the true crystal, its hardness, specific gravity, refractive index and fake crystals have a big difference. It is really heavy, the fake is lighter, the true crystal hardness is 7.00, the refractive index is 1.54, and the false hardness is only 5.2 to 6.10, and the refractive index is less than 1.00. The natural crystal is hard, and it is lightly scratched on the ornament with gravel, leaving no traces; if there are streaks, it is a fake crystal jewelry.

Fifth, from the perspective of purity, natural crystals are often affected by environmental influences, and some have different degrees of inconsistencies and colors. When viewed from the sun, you can see a faint uniformity. Small horizontal stripes or catkins. The fake crystals are often smelted with crystal slag and glass slag. After polishing and coloring, there is no uniform streaks or catkins. Such as Huang Jing, the natural citrine on the market 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.

Sixth, the specific gravity: the weight is too light, it must be fake, so as to exclude glass, plastic, pressed particles and other imitation products, but now the market is more crystal-grown, its weight is almost the same as the natural crystal, with the hand The test method is not easy to find true and false

Seventh, the magnetic field test method: the two natural spar are pinched by three fingers of the thumb, forefinger and middle finger respectively. The distance between them is about 1-2 cm, and the relative rotation is slowly and close to each other, and immediately there is a similar feeling. The wonderful power of the magnets to attract each other, especially the crystal ball is most obvious, non-natural crystals will not have this phenomenon, including synthetic crystal.

Eighth, the price: the crystal and the natural gem-quality crystal have one thing in common, 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 Transparent, 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.

Ninth, choose crystals that are not easy to imitate (such as hair crystal, green ghost, amethyst, intrinsic matter, natural ice crack, cloud and ribbon change, or prefer a slightly sinuous crystal, crystal with inner inclusion is generally not There will be a fake, because forgery of such things is costly and laborious, and the effect is easy to see through.

In addition:

Crystal still has the color grade, which affects the price of the crystal. It is not like diamonds can be judged by 4C, so it is recommended that you still have to listen more and compare more, in order to truly judge, the standard on the market is the larger the spar Well, the better the better, the more delicate the color, the better the shape is better (such as hexagonal column crystal or crystal hole ore, etc., there are also special, for example, the powder crystal ore is not a hexagonal column, the so-called powder on the market The crystal hexagonal columns are all manually ground), but your favorite is the most important.

All the things that are worn on the hand are from the right.. From right to left: Huang Jing. Popped white crystal (generally, ordinary white crystals have many internal injuries. But maybe there are synthetic crystals like this, anyway, basic I can't see any eyebrows on it.) Shido Pear Crystal (dyed crystal, I have never seen such a crystal, as if it is a very rare red crystal). There are white lines and red lines. No white lines, red moon, moon stone, blue chalcedony, honey wax