The use of violet light to identify amber is considered to be a very effective method, but since there are different sources of violet light on the market, there has been no uniform reference standard.
1. Selection of purple light: Purple light is divided into three kinds of medium and short wave. We often use long-wave purple light with wavelength between 320nm and 400nm. This kind of light is often used by us to check money and make fishing lights. I recommend Everyone uses a purple light with a specific wavelength of imported LED. This kind of light has the strongest fluorescent effect, and the purple light covers the lightest color, which is convenient for us to accurately determine the color difference of amber's own fluorescence.
2. Tools With the following let us look at the effect of amber in different places under fluorescent light:
Myanmar Golden Blue: R31, G71, B202 positive and negative error 10
Followed by the multi-meter blue lop, R24, G76, B175 positive and negative error 10
Once again, it is Mexican Perot. The fluorescence of the naked eye is blue-green, R75, G149, B220.
Finally, the Polish amber, the fluorescence of the naked eye is green, R78, G108, B110
At present, many merchants in the market use Mexico's Lanpo to pretend to sell Domi Lanpo to earn high profits. Although the two are similar in blue under the black background, they will show their peaks in the contrast of the purple light. Really, in the future, everyone will only need to prepare a purple flashlight, and a multi-meter blue-pocket standard is not afraid of being fooled.
For every player who plays amber, I personally think that the purple light is a must, and the wavelength of my own purple light is 395nm.
Because the purple light can not only be used to distinguish amber from other materials such as plastic, but also can be used to determine the variety and origin of the amber, the year, etc., are very helpful.
This article simply discusses the use of violet lights, and other means of identification are beyond the scope of this article.
One: If there is no fluorescence reaction, it must not be amber.
To judge this situation, one must observe whether the object itself has a thick oxide layer and an ore wrap layer. Because amber has a long time of oxidation, the surface oxidation of the body is more serious, and the fluorescence reaction is weak and weak. If a thicker ore layer is wrapped, there is almost no fluorescence reaction. In the case of this situation, the easiest and most straightforward way is to properly polish the skin, expose the body wrapped in the oxide layer, and then use the violet light to make it easier to judge. In other words, if the surface of the object to be measured is smooth and clean, and there is no excessive oxidation, the fluorescence reaction is certain. If there is no fluorescence reaction, it must be plastic.
Burmese amber with skin, the part that is not completely peeled on the side is not fluorescent.
Two: How to use the purple light to distinguish whether it is amber, rosin or coba
1. The fluorescence reaction of rosin is dark green and the fluorescence reaction is weak.
2, the natural amber fluorescence reaction is relatively strong, such as the light green fluorescence of Haiper, the blue fluorescence of the mineral.
3, most of Coba basically has no fluorescence reaction.
Three: How to judge the origin of amber with purple light
1. The “Haiper†produced by the countries along the Baltic Sea, which is what we call “beeswax†in China, polished the peeled ore and the finished product, and the fluorescence reaction is pale green.
2, Dominica's amber mainly has gold green, blue and green, blue sky and so on, to judge their differences need to be used in such cases as black, white, light, etc., using daylight, white light tube to refer to judgment, simple It is not easy to distinguish only the violet light. Among them, the blue sky light fluorescence reaction is blue-white, the white light is white, and the fluorescent blue is bright. The finished product with clear material will have a slight green light on the edge, which will vary according to the color and impurity content of the material. The fluorescence of blue-green and gold-green is also blue-white, but the blue fluorescence is darker than the sky blue. The blue fluorescence of Golden Green is lighter than the first two.
3. The amber of Mexico is mainly composed of gold green and blue-green, and the fluorescence reaction is basically similar to that of rice. It is rare to see the beauty of the blue sky with the blue sky.
4, Burma blood and fluorescence, the higher part of the carving is dark green, after the part is worn out, blue and white.
5. There are more varieties in Fushun Amber Market, and the fluorescence reaction is dark green.
Four: How to use the purple light to judge whether amber is optimized for suppression
Now the optimization technology of amber is getting more and more superb, and some of the optimized amber also have a fluorescent reaction. It is necessary to distinguish whether to optimize the pressing key or to observe and judge carefully. The optimized amber will weaken the fluorescence response. The deeper the optimization, the weaker the fluorescence will be until it disappears.
For example, Haiper, not optimized, the fluorescence reaction is very light green, translucent and translucent. After the mild optimization of the pressing technology, if you do not compare it with the unoptimized raw ore, you can hardly see much difference. But a comparison is obviously weaker than the unoptimized material. The Haipu, which is deeply optimized and baked and pressed, has no fluorescence reaction, and the difference is obvious.
In addition, the violet light can be used to observe whether the flow pattern of amber is normal. The pressed material can be observed through the violet light. It can see the regular block-like joint surface, no pressed amber, the flow pattern is natural and smooth, and there will be a natural bending. radian. This requires more contrast observation and accumulation of experience, and it is not easy to express it simply by using words.
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