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". Crafts made with meticulous processing - natural crystal necklace. After wearing it, it can have some magical effect, with the magical effect of eyesight, refreshing, facilitating, filling the dirt and lowering blood pressure. So, what kind of crystal is the real natural crystal? What are the characteristics of natural crystals that are unmatched by other artificial and counterfeit crystals?
From the intuitive point of view, the real natural crystal necklace is crystal clear, soft and lustrous, touching the skin, giving people a cool feeling. The fake coolness is lighter. From the optical point of view and analysis, the natural crystal necklace is a true axis of light, placed vertically in the sun, can give off colorful brilliance, no matter which angle, it can emit beautiful brilliance, fake can not; from Physical and chemical analysis, true crystal necklace, its hardness, specific gravity, refractive index and fake crystal necklace are quite different. Really heavier, fake lighter, true crystal necklace hardness of 7.00, refractive index of 1.54. The false hardness is only 5.2 to 6.10, and the refractive index is less than 1.00. From the perspective of purity, the purity of the fake is high, because it is natural, and some have different degrees of inconsistency and color.
The above is a brief description of some features, and a detailed analysis of these features is given below.
1. Temperature: Under normal circumstances, the temperature of natural crystal is lower than other stones. It feels slightly cold when touched by the palms or cheeks. This method is only suitable for larger crystal balls or crystal rods, because too small crystals such as crystal bracelets or pendants are more difficult to feel the difference in temperature.
2. Weight: Natural crystal is a stone material with high density and light weight. When buying crystals, first put them on the scales of the scales, and find that the relatively light weight is likely to be fake crystals made of glass or plastic. Nowadays, the crystal made by the "greening" method is very close to the natural crystal. It is not easy for ordinary people to separate it. Only when the merger is observed, other aspects such as "inclusion", refraction, etc. can be identified. Really fake.
3. Refraction: Natural crystals will have birefringence. Place a black line on a white cloth or white paper, place the crystal on it, and watch through the crystal, the black line will be refracted into two balanced or overlapping black lines. If you can't see the birefringence, there is a big chance that this is a fake crystal made of glass. But this method is only suitable for identifying the difference between glass and natural crystal. The crystals made by the "greening" method now also have a refractive index. This method is also not suitable for the authenticity of the white crystal ball, because the refractive index of the white crystal ball is not high, and the identification by this method is not necessarily accurate.
4. Energy: True crystal is capable of emitting energy. When buying a crystal column, use one hand to pick up the palm of your hand toward the palm of the other hand, and slowly circle it clockwise from 2 to 3 inches. The palm can feel the energy emitted by the crystal column to the palm of the hand, the feeling is very obvious. Of course, a small number of people have weaker energy induction for crystals, and they fail to sense their energy when they first touch the crystal. This method does not apply. But if you can feel the energy of the crystal with this method, you can be sure that the hand is really a natural crystal.
5. Inclusions: Any natural crystal has "inside" (ie minerals or bubbles), only in the type and size of "inside". These "inside packages" are more or less visible to the naked eye. If you see a crystal clear crystal, you can't see the "inside", so be careful. This may be a fake crystal made of glass. I believe that if you want to buy such rare natural crystals, you must pay with appropriate instrument identification. To be considered a crystal clear crystal, it must be "inside", which can be seen with a professional microscope.
Summary: The above mainly introduces the characteristics of natural crystal. It can also be regarded as the difference between natural crystal and ordinary crystal. Natural crystals will of course have corresponding magnetic field changes, and each will have different effects. These magnetic fields and effects are unmatched by artificial, forged crystals.
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