In recent years, due to the vigorous development of the South Red Agate market, more and more people know about it, and its reputation is getting bigger and bigger, and its price is soaring. Many businesses also have ulterior motives, thinking about taking the opportunity to make a fortune. However, because we couldn't find good raw materials, or the cost of raw materials was too high to accept, we came up with all kinds of artificial fake methods to shoddy, or it was not Nanhong at all, and found a similar original stone to deceive consumers. Many novice players are often here in into the pit, so they stop looking at the South Red Agate and feel awe. But don't worry, after reading this article, you can see through 90% of the fake South Red. Teach you how to identify South Red Agate.

Common fraudulent means of Nanhong:

At present, the most common counterfeiting methods of Nanhong in the market are mainly glue injection (now optimized), baking and dyeing. There are also some stones similar to Nanhong, such as chicken liver stone, which are often used to pretend to be our Nanhong agate. Although these stones are similar to Nanhong, they are essentially different.

How to identify the south red agate injected with glue;

Glue injection can be said to be the most common means of counterfeiting South Red Agate, but in the industry, glue injection is actually not a fraud. Many jewelry appraisal institutions also default to this jade optimization method, which will also be marked in the appraisal certificate, so it is reasonable to say that glue injection is actually reasonable. However, it is unreasonable that many merchants sell the glued south red agate to buyers at the price of pure natural south red agate, and the price is often several times higher. So how can we identify this glue-injected south red agate?

Identification of red agate in Jiaonan;

It is almost impossible to tell the difference between glued south red agate and natural south red agate with the naked eye.

But if equipped with our tools, it is easy to distinguish the difference between our glued and non-glued south red agate. As shown in the figure, we can clearly see that the glued south red agate immediately shows its original shape through the irradiation of purple light. Its surface has layers of white annular glue injection. Do you think it's easy? The fact is as simple as that.

How to identify baked south red agate;

If glue injection is the recognized optimization method of South Red Agate, then baking can be said to be a way for merchants to deceive consumers purely for profit. At present, the main way to judge the value of south red agate is to look at its material, sculpture, color and so on. Moreover, our south red agate is pure in color and bright in color. Baking is to change the internal molecular structure of our south red agate after high temperature baking, so as to change its appearance color and make it more uniform and red.

Identification of baked south red agate;

As we all know, the coloring factor of most red gems is iron oxide. Therefore, the agate with unsatisfactory color is placed in a high temperature environment, and the iron ions inside are oxidized into trivalent iron ions. From the appearance, the baked south red agate has uniform color, strong glass feeling and high transparency, and has no rubber texture of south red. Through the observation of ten times magnifying glass, we will also find that there will be fire robbery lines on the surface of baked south red agate. This method is very useful for baked South Red Agate.

How to identify dyed south red agate;

Dyeing is also one of the ways to change the color of our southern red. For some chemical reagents dyed south red agate, wearing it for a long time will even damage our health.

Identification of dyed south red agate;

The artificial dyeing of south red agate is mainly to soak it in the solution of ferric nitrate or ferric oxide for one month, then soak it in sodium nitrate for more than two weeks, dry it, and then heat it for acidification, thus turning red. Observing this kind of southern red with a magnifying glass, you will see the infiltration structure of reticular color distribution, and the color permeates along the crystal gap, which has a strong sense of glass, without the unique greasy feeling of southern red agate. Externally dyed South Red Agate, its rich red color is not emitted from the inside, but only emerges on the surface, and the color is exaggerated. However, the color of natural south red agate is consistent inside and outside, and it has an oily texture. For some south red agates with poor dyeing process, the color will fade even if we put them in water.

How to distinguish between south red and red tourmaline;

Nanhong and Hongbishi are two very similar stones, but their value is far lower than that of Nanhong agate due to stoniness.

Distinguish between Nanhong and Ruby;

Compared with Nanhong, ruby is poor in water and oil, looks dry, has no moisture, is stony and lacks aesthetic feeling. When we polish two kinds of rough stones with strong light, we will find that they are almost opaque, while the southern red agate will be transparent whether it is full of meat or not, but the transparency is different. In addition, almost all southern red agates have agate patterns, such as black lines, flame patterns or small spots, which can be found as long as we observe them carefully, while ruby usually does not have these.