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The tourmaline has a variety of colors, and in the face of these beautiful colors, we have become "little people." However, it is worth noting that when we are nostalgic for its beautiful colors, we should polish our eyes and see its true and false in case we can buy counterfeit tourmalines and leave it with regret. Now I will teach you a few ways to practice a pair of "eyes" that recognize the true and false of the tourmaline.
1. Put the tourmaline in the palm of your hand and look through the tourmaline. The more you look at it, the less clear it is.
Because tourmaline has the property of birefringence, we can use this feature to put the tourmaline in the palm of your hand, looking from the larger side of the tourmaline. Looking at the more and more blurred and unclear is the true tourmaline. The fake tourmaline is more and more clear.
2. Observing from different angles, the color of each angle of natural tourmaline is different.
Look at the color, the color of the tourmaline is very much, among which red, rose red, pink, blue, green, yellow, brown, black, colorless, mainly purple, even if it is light purple, no Purple like crystal. If you see a more intense purple, then it means a fake tourmaline. Another feature of tourmaline is that it has dichroism. According to this characteristic, if it is a natural tourmaline, the color of each angle should be different.
3. Natural tourmaline has more or less inclusions
The natural tourmaline has more or less cotton wadding and inclusions inside, and the price is not the same depending on the color. If you buy a tourmaline that is very bright and transparent, and the price is very cheap, then pay attention to its authenticity. In addition, the color of the fake tourmaline bracelet, although the color is bright but very glaring, not soft, the color inside is not uniform under the light, the real tourmaline has natural growth lines, this is the unique growth of the tourmaline, other natural The ore can't be charged.
4, with the aid of instrument identification
(1) Refractometer detection We can detect their refractive index by instrument detection. Each jewel has different parameters for light refraction. According to this parameter, it can be determined whether it is tourmaline, tourmaline, crystal, fluorite, and measured parameters. Not the same, the tourmaline refractive data is accurate between 1.624 and 1.644, the fluorite is 1.43, and the glass is about 1.49. (2) Infrared spectrometer If the conventional instrument can not be determined, the infrared spectrometer will be used. The infrared spectrometer will appear - some waves, many peaks and irregularities are tourmalines.
5, identify the crystal and tourmaline by color
The distinction between crystal and tourmaline is mainly to see their color. Generally speaking, crystal is not red and green like tourmaline. Crystal purple is more common, but tourmaline has no purple of amethyst, only purple! Therefore, it is possible to use the difference in color between the two to roughly distinguish between true and false.
6, identify the hardness of fluorite and tourmaline
The true and false identification of fluorite and tourmaline can be compared firstly from the hardness. The hardness of tourmaline is 7.5 degrees Mohs, and the hardness of fluorite is only about 4 degrees Mohs. Both can compare the hardness by drawing glass! Secondly, because the hardness of fluorite is low, the luster of fluorite jewelry is far less than the tourmaline! Another point is that fluorite is often used in the multi-color material when it is posing as a tourmaline. The tourmaline is less purple and has a purple-red color. Just as the multi-color of fluorite often appears purple, this is also the identification of fluorite and The effective means of tourmaline true and false.
7. Identify glass and tourmaline by inclusion and certificate
The true and false distinction between glass and tourmaline is most obvious. From the perspective of internal inclusions, there are often small round bubbles in the glass. If you see such a feature, you can basically conclude that the glass is not a tourmaline! There is also a way to pretend to be a tourmaline in glass. That is to use a burst of glass to pretend to be a relatively coarse tourmaline. This type of glass is usually dyed after bursting. Therefore, the color dyes are concentrated in the cracks, and the light transmission is easy to distinguish! There is also a phenomenon in which glass is used to synthesize a similar faceted tourmaline gemstone, so that the surface of the glass looks like a tourmaline, but the tourmaline has dichroism and birefringence, which are not available in glass! Just watch the comparison carefully and you will find it! Moreover, the tourmaline, which is generally used as a gemstone, has an identification certificate. The glass of the tourmaline will not have a formal identification certificate!
The identification of tourmaline is not sloppy. If you have any doubts, don't start easily. Would rather wait, and be stronger than buying fakes.
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