The difference between natural crystals and synthetic crystals was mentioned in the last article. There are many kinds of products on the market. How to avoid false crystal defects? ---Crystal Information
Specific gravity: The weight is too light must be false, this can exclude counterfeit goods such as glass, plastics, pressed particles, but now there are many crystals on the market, its weight is almost the same as natural crystal, hand-test method It is not easy to find true and false.
Refractive index: Most people see the crystals like to be in the light, so it is impossible to judge whether the crystal is true or not. It can only see the grade of the crystal, because the crystal has a high refractive index. We can put the crystal in a dark place, the natural crystal color will be very bright, the crystal color will be relatively dim, lack of pan-"spirit" sense, only a little bit of brightness. You can use natural white crystals and glass to compare and feel.
Price: Crystal and natural gem grade 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 seed beads will be made into the cutting surface, the crystal is transparent, However, the price is generally not too high. However, if he is really a natural gem, the price must be more than 100 yuan, depending on the crystal size.
Chromatic aberration: natural crystals have a color difference, a natural crystal can not be uniform in every part of the color, such as topaz, natural yellow crystal market is very rare. Natural yellow crystals can be discerned in water. The natural yellow crystals appear in the water and their color is uneven. Usually a piece of color radiates to the whole piece of crystal is yellow, and crystal growth is absolutely uniform.
Other: Cold, stone-like crystals are basically not fake.
Inclusions: There are no fakes, so buying Crystals, Ghosts and other intrinsic crystals can be absolutely assured, because forging such a thing is costly and laborious, and the effect is very easy to be see through.
The fake crystals on the market generally have the following types: 1. Glass products 2. Smelting crystals 3. Lead-containing glass 4. Synthetic crystal 5. Regeneration crystal (crystal-cultivation)
Identify true and false crystals with simple polarizers. It is composed of upper and lower polarizers to form a refractive clip, which can distinguish between glass and crystal. Since the glass is a homogenous body, place it in the middle of the folder. When you turn it anyway, the fake crystal is always dark. If you rotate 360 ​​degrees in the middle of the folder, there will be four regular light-dark changes. Crystal is no doubt.
More crystal information in China Crystal Industry Network, China Crystal Industry Network official website: http://sjcyw.99114.com/
Shaoxing Ruier Imp. & Exp. Co.,Ltd , https://www.pasafancyfabric.com