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Dyeing and radiotherapy black pearl

In addition to the silver nitrate staining of the nuclear cultured pearls (in the X-ray photo identification can be found on the basis: Conchyolin beads of the outer layer of opacity around the point of silver infiltration), and stained Biwa activity or China Nuclear cultured pearls (often dye attached to the pits and surface defects), the color did not improve after the pearl outer bored is not easy to detect. If pearls no drilling, laboratory will be asked by infrared spectroscopy, Raman spectroscopy, for the improvement of any color of a dye for identification.

Relatively speaking, a nuclear cultured pearls or in vivo nuclear If freshwater pearls drilled hole, the color of the identification of the relative improvement of a lot easier. Bored and staining of the pearl, the wearing of the holes can be found justice:

Dye glued to the hole is a nuclear cultured pearls

Nacre, Conchyolin layer and the beads were compared with the color of the Black nuclear Cultured pearls, and the characteristics of a nuclear black pearl clear contrast characteristics. Nuclear black pearl beads of white, black pearl layer, which can be seen from the borehole, a nuclear black pearl is the mother Pui P margaritifera or black lip pearl oysters.

That the nuclear black and white nacre of a nuclear cultured pearls is the colour of the X-ray radiation that.

Live in a nuclear Pearl Dye will be in the adhesion or bored holes in the string of pearls between Rope can be seen with dye.

Natural black pearl layer on the long-wave UV fluorescence reaction was that it is not dealt with a useful basis for guiding. For example, natural pearls and not deal with Cultured Pearls of natural nacre are black, often under a UV fluorescence intensity was always uncertain but Anjiang brown fluorescence. On the contrary, dyeing, processing and laser irradiation with nacre in the black under a long-wave ultraviolet light inert.

Laser treatment of black pearl

Do not have much understanding of this technology, which only recently pearls 2 to 3 years to make big profits in Australia before appearing on the market. The use of this technology can at least give China a nuclear-free freshwater cultured pearls with a beautiful black tune. For the improvement of color laser irradiation is complete cooperation also is in doubt. The thermal laser generated because it is clear carbonized organic matter will pearls, pearls of dehydration and can become dry coke impenetrable. I think, if laser technology can be used to improve this with a halo of black pearl color, then a certain extent, the laser energy can also be used to add color modest improvement dyeing process and dye penetration depth.


Laser treatment of the pearls, in the enlarged circumstances, we can see some common phenomenon, and the identification of possible features include:
- Laser surface-pearl handle the color halo effect.
- Pearl multi-stage process of the growth layers were perfect improve.
- Pearl overlying a layer of waxy, this layer of easily Guaxialai cereus, and it can often hide the kind of nacre "Care-fingerprint" patterns.
- Brown waxy layer filling defects in the surface of pearls and Lo Shih Wen Department.
- Pearl bored in a wax attached to conceal pearl onions first concentric ring-like structure of the growth layer.
- Brown waxy layer filling defects in the surface of pearls and the spiral profiling "
- Pearl bored in a wax attached to conceal pearl onions first concentric ring-like structure of the growth layer.

This long-wave UV lamp source dealt with the nacre was inert. We are now Raman spectroscopy will be used to study, found that the laser treatment to the identification characteristics of pearls.

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