Compared with the previous year, the price of jadeite this year has risen by nearly 30% again, which is a small gain for Cuiyou who are engaged in investment collection. But for some newcomers to the jade industry, it is definitely not a good thing.
The higher the value of jadeite, the more prevalent the jadeite counterfeiting industry becomes.
Today, the third brother came to talk to the cui friends about the jadeite counterfeiting. In general, it can be summarized into five major types:
█ Emerald abc
Jadeite abc refers to jadeite a goods, jadeite b goods, jadeite c goods.
So-called a: natural jadeite that has not undergone any treatment
The so-called b: jadeite that has been eroded and glued by strong acids
The so-called c: artificially dyed jadeite
There is also a kind of b+c, that is, strong acid erosion with glue injection and dyeing of "poisonous" jadeite.
a is not to be said, just b, c and b +c.
Scam one: Emerald b goods
The market calls it "rinsed jadeite" or "bathed" jadeite, does this sound like nothing? However, on the quality inspection certificate, for this jadeite, it will be directly written: "After bleaching filling process".
(1) Counterfeiting process
Step 1: Select jadeite wool with coarse particles, poor water head, loose structure and low price.
Step 2: Rough processing of the wool material to make it into a semi-finished jadeite product.
Step 3: Soak with strong acid to dissolve the fine mineral particles and impurities in the microcreases on the semi-finished products, so that the microcrevices are in an open state.
Step 4: After being pickled, wash the jadeite with clean water.
Step 5: The washed jadeite is immersed in organic glue, vacuumed, and the air in the micro-fissure of the jadeite is removed, so that the organic glue is fully injected into the micro-crack.
Step 6: Take out the jadeite injected with glue, and after the organic glue is hardened, polish and polish it, remove the gum on the surface, and make it into jadeite b goods.
(2) b Value of goods
Although the b goods are cheap, but worn for a long time, the organic glue is aging, it will lose its luster and turn yellow, and it does not have the value of preserving and increasing value.
(3) B goods identification
1. At a glance, the overall whitening of b goods.
2. Under a magnifying glass, observe its surface, there are obvious spider web-like, traces of acid corrosion.
3. In the cracks visible to the naked eye, there are traces of organic glue filling, and the luster is obviously dark.
4. Tapping the b goods will make a dull sound.
5. For jadeite newcomers who cannot be identified, it is recommended to send jadeite to the local jewelry appraisal agency, and the true and false can be known with the help of professional instruments.
Scam two: Emerald C goods
Jadeite filled with organic or inorganic dyes is c-cargo jadeite.
B+c jadeite is filled with colored glue to fill the fissures of jadeite.
Appraisal method:
If you see that the color of the jadeite to be tested is rootless, divergent, and has a sense of floating;
If you see color aggregation in the fissures of the jadeite to be measured;
If you see the surface of the jadeite to be tested, there are obvious traces of acid corrosion;
If you see that the jadeite to be tested has the phenomenon of "adding color to color";
……
Basically, it can be judged that it is b goods or b +c goods.
Scam Three: Optimized Treatment of Jadeite
The optimization of jadeite includes heat treatment and wax immersion; treatment includes bleaching soaking wax, bleach filling, dyeing treatment, and coating treatment. Here are two typical, one heat treatment, one coating treatment.
(1) Heat treatment
In order to make jadeite more attractive, profiteers will "heat treat" jadeite. You read that right, like the "burning" of gemstones, jadeite can also be "burned".
The "heat treatment" of jadeite can turn the yellow, brown, and brown of jadeite into a bright red.
After "heat treatment", jadeite has a very "dry" feeling, like that dry, waterless jadeite is low-grade inferior jadeite, not worth buying.
(2) Coating treatment
The coating is also to increase the selling phase.
The surface gloss of coated jadeite is not strong, and when observed with a magnifying glass, the phenomenon of peeling can be seen, and there will be a feeling of viscosity when rubbed by hand.
Scam Four: Stitching jadeite and crafting jadeite
(1) Stitched jadeite
Some jadeite rough looks quite like the same thing, but in fact, it is artificially combined by two or more pieces of jadeite to achieve the purpose of improving the appearance of counterfeiting.
Rub the jadeite rough shell and you will find that the texture is soft and gelatinous.
(2) Synthetic jadeite
The dao is one foot high, and the jadeite composition is complex, it can still be synthesized artificially. For example, synthetic jadeite, view of green to yellow-green, translucent glass luster, delicate touch, under the ultraviolet lamp, there is blue and white weak fluorescence, gray green has strong fluorescence, and the nature of natural jadeite is basically the same, routine inspection is not enough to distinguish.
Therefore, it is recommended that treasure fans look for authoritative jewelry appraisal agencies, at least provincial or above, national certificates.
█ Summary
1. See
True jadeite has "jade" and is divided into three types:
The first is commonly known as "fly wings", which refers to the appearance of bright white reflections like fly wings on the surface of the emerald under the illumination of light.
The second is commonly known as the "orange peel effect", which refers to the reflection observation, the polished plane of jadeite, you will see a different size and direction of the same size and direction of the same bulge and depression.
The third commonly known as "cotton" refers to the transparent or translucent jadeite that is illuminated by the side light or the bottom light, and some cotton wool substances appear inside the jadeite.
2. Feel
True jadeite is large, and when weighed by hand, it has a pressure feel, while fake jadeite such as Xiuyu, Dushan jade, dyed quartzite, and water foam feel very light.
Jadeite identification techniques are easy to say and difficult to do.
Not only to see the six ways and listen to the eight directions, but also to experience +10086, as long as you see more and touch more and compare with the true jade, you can cultivate the true meaning.
█ Send scam five
A blacklist posing as Emerald!