With the fiery market in the tourmaline market, the interiors of various tourmalines have gradually become clear and transparent, and the “Bixi Injection†has become the primary problem for the lovers of tourmaline white and tourmaline in purchasing crystals!
As the leader of semi-precious stones in recent years, tourmaline has long been the hottest topic in the market. Today, Xiaobian will tell you about the problem of glue injection!
First, why is the tourmaline to be glued?
This problem is a question that beginners who do not understand the nature of the tourmaline and the processing process will raise.
We know that tourmaline is a borosilicate mineral body, which displays a colorful color according to the difference of trace coloring elements, so it has the reputation of “the rainbow that falls into the worldâ€.
So why does tourmaline need glue? From the physicochemical properties of tourmalines, it is not difficult to see that the tourmaline has a relatively high hardness and the crystal is brittle, so it is easily broken and brittle during the cutting process!
Therefore, the initial motive of the injection of tourmaline is actually to facilitate the processing of the finished product of tourmaline. The madness of the online injection of plastic injection is only a side effect derived from later.
In order to avoid cracking of raw materials and increase the yield, many tourmaline processing plants fill the glue before cutting. The function is to increase the adhesion and increase the transparency.
Second, how to identify the injection of tourmaline?
This question is the one that the consultant listens the most and the one that answers the most! As mentioned above, the general injection of tourmaline is mainly concentrated on the tourmaline with poor appearance and more cracked ice, and the best vitreous tourmaline ring bead is basically not glued!
Injection molding affects the cost of the sale, the factory is not a fool! So how to identify the injection of tourmaline for the poor quality of the tourmaline? The most direct is the machine to do the identification!
The general identification certificate of the injection of tourmaline will write: "Natural inclusions, with fillers inside!" This refers to the natural formation of ice cotton and cracks in natural crystals;
There is a filler inside, which refers to some gum remaining in the process of polishing and polishing. Secondly, the naked eye can also be distinguished!
The surface of the gelatinized tourmaline has a spider web etch at the time of magnification observation, and the gloss of the gelatinized tourmaline is not strong enough, the interior is not clear enough, and there is a mixed feeling of colloidal!
3. Is the injection of tourmaline or natural tourmaline?
As early as a few years ago, the color of crystals and crystals changed over time in the long-term erosion of sun exposure or domestic water, and nowadays, with the improvement of processing techniques, such things will definitely not happen again. !
Bismuth injection is only to improve its yield, and to improve the color tone and permeability is only a secondary effect. Injection molding does not change the internal structure of natural crystal.
Therefore, the injection of tourmaline is still a natural tourmaline, because the price of this kind of tourmaline is low, the appearance is poor, glue injection is only a necessary processing procedure! Of course, this is based on the needs of different people!
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