Qn on jade bangle

[Junkenpo]

I think I found some of the same articles faithgrace7 is kindly sharing with us. I'm going to repost in full. LINK

If you run it through Chrome, it should translate from Chinese to English.

On the emerald surface residual polishing powder

Often been puzzled that the certificate of authenticity A cargo Jade wrote: See polishing powder residue, which is what does it mean? Here we look at the country seized article.

Emerald colors reflected in the form of :

1 natural color: emerald green or brown, whether red, the color of rich states are kept in the internal jadeite crystal purity. Color is the entire particle state, state distribution or irregular pulse, there is a sense of transparency, distributed more natural.

(2) secondary colors: color is produced after the formation of a jade, primarily in the distribution of the mineral particles are distributed among or between the gap, the gap is controlled by the reticular, sheet, disseminated, uneven color, non- crystalline state.

3 Surface color: color is an artificial dip. There are two cases: one is coated on the surface of the emerald colored substances, like green paint, so Jade looks nice and bright (Figure 1); Second, in some of the near-surface immersed in emerald colored substances, like polishing pink, white or color is not so bright emerald elegance. This two color process is easy to restore faded.

Recently, the jade merchants commissioned sample submission of view, the situation is often jade jewelry polishing powder residue on the surface appear. Its jade jewelry polishing powder residue on the surface mainly green, blue and purple etc.. Jade polishing step polishing powder added bright colors to improve the emerald in color, so that the original color was lighter body surface covered with shallow emerald green or purple, emerald prices make some appreciation. Now three common residual polishing powder color photomicrography be the case in the example:

Emerald green surface polishing powder is mainly used for light green in color, so that the original green color green area near the root of the increase or make a very strong green color was not originally part of the color deepened root (Figure 2).

 

[Junkenpo]

Mainly used for surface polishing powder blue color close to white jade surface fissures, so polishing powder blue jade penetrate through the surface of the internal fissures in imitation "floating blue flowers" Jade (Figure 2).

Purple polishing powder is mainly used for the original light green jade surface, so the surface of pale green jade cast a faint purple imitation "Spring with color" Jade (Figure 4). Purple polishing powder can also be used as a light purple jade had to make a light purple color deepened surface (Figure 5).

Identification of surface residues polishing jade powder samples easier, as long as it generally through the strong / cold light carefully observed visually or under a microscope sample, residual traces can be found. The presence of bright colors polishing powder samples when the naked eye can see the color of the local focus spotty, patchy distribution network and micro-cracks between the surface and the extension of emerald fissures spread a large distribution depot to identify distinguishing characteristics.



In view of this, jade jewelry market is now circulating in the residual polishing powder and more serious, according to the current national standard GB / T 16552-2010 "jewelery name", GB / T 16553-2010 "jade jewelry appraisal." definition of jewelery optimization, for jade jewelry polishing powder residue on the surface of bright coloration may be dyed named and described in a note. At the same time, why "Spring with color" jade jewelry polishing powder residue in the "Purple" and "green" is relatively evenly distributed? To this end, and we work together to explore and understand the vagaries of learning, the mystery of infinite emerald.

Original Author: National Quality Supervision and Inspection Center jade jewelry laboratory Ping Chau Liu Yang Yang Xiaorong

Again: LINK

 

[DaisyShadow]

This is my girl wearing her great grandma's kebaya.

 

[Junkenpo]

This is my girl wearing her great grandma's kebaya.

So beautiful!

What great colors and embroidery, I love it! She looks absolutely lovely, I am envious of her slimness and youthful skin. I also see the jade adorning her wrist. Your girl is stunning.

 

[Silver Mom]

Mainly used for surface polishing powder blue color close to white jade surface fissures, so polishing powder blue jade penetrate through the surface of the internal fissures in imitation "floating blue flowers" Jade (Figure 2).

Purple polishing powder is mainly used for the original light green jade surface, so the surface of pale green jade cast a faint purple imitation "Spring with color" Jade (Figure 4). Purple polishing powder can also be used as a light purple jade had to make a light purple color deepened surface (Figure 5).

Identification of surface residues polishing jade powder samples easier, as long as it generally through the strong / cold light carefully observed visually or under a microscope sample, residual traces can be found. The presence of bright colors polishing powder samples when the naked eye can see the color of the local focus spotty, patchy distribution network and micro-cracks between the surface and the extension of emerald fissures spread a large distribution depot to identify distinguishing characteristics.



In view of this, jade jewelry market is now circulating in the residual polishing powder and more serious, according to the current national standard GB / T 16552-2010 "jewelery name", GB / T 16553-2010 "jade jewelry appraisal." definition of jewelery optimization, for jade jewelry polishing powder residue on the surface of bright coloration may be dyed named and described in a note. At the same time, why "Spring with color" jade jewelry polishing powder residue in the "Purple" and "green" is relatively evenly distributed? To this end, and we work together to explore and understand the vagaries of learning, the mystery of infinite emerald.

Original Author: National Quality Supervision and Inspection Center jade jewelry laboratory Ping Chau Liu Yang Yang Xiaorong

Again: LINK

Thank you JKP, Bummers! How can these people cheat other people? Terrible.

 

[Silver Mom]

This is my girl wearing her great grandma's kebaya.

What a sweetheart. Adorable.

 

[Junkenpo]

Here's the other one.

With the perfect amount of information and communication, increase awareness and enhance the identification of the buyer's inspection agency. Recently B + C, depending on the stock market declined, and this is a very nice thing to learn. However, where there was dead, stewed wax and polishing powder is walking a fine line and identification standards derived product market, (a very small amount of jade with a very small amount of wax and polishing powder can also be issued
to identify natural jadeite A goods certificate). Source altar faithful children want to distinguish goods ABCD same time, the stew wax and polishing powder products fraudulent methods vigilant. "There would be no killing buy."

Waxing the Jade finished is soaked in the molten paraffin into the hold period, the upper surface of the wax along Emerald various voids immersion . If the emerald texture more closely, immersed only in the surface layer of wax, emerald after waxing, make the surface of the small pits, small pores filled, enhanced surface gloss and transparency.

However, if the relatively loose texture of jade, or through a variety of pickling, including traditional bayberry soup will make emerald pores increased, resulting in more paraffin filled into the interior of jade. Jade and more immersed in wax, because the passage of time, the aging of the wax produces white flowers, instigate emerald transparency worse. Some jade because of the poor quality of the wax, only six months will produce this change. Therefore, the filling process and waxing different wax can be called dip wax treatment.

Dip wax treatment and pickling impact plastic handle different charge, Emerald Baptist wax treatment has not been a strong acid, destroy the structure is not strong, there is no apparent durability of emerald, and the other is that the structure of natural jade itself is quite loose, such as jade coarse structure. But as long as too much wax, wax may be due to aging leads to cracking of transparency emerald, emerald wax can be viewed as a dip.

Baptist wax and waxing Jade Jade has the following features can be distinguished:
(1) UV fluorescence
wax dipped emerald jade UV fluorescence stronger than waxing, typically blue-white fluorescence of moderate intensity, you can even have a strong blue-white fluorescence .
(2) Infrared absorption spectrum
The infrared absorption spectrum can better distinguish two kinds of wax and the wax impregnated emerald. Baptist wax emerald wave number 2925cm-1 absorption is very strong, near-zero transmittance, ie close to the bottom line, and 2925cm-1 wave number of the absorption is weak waxing emerald, far away from the low line.

When the infrared spectra of the sample, pay attention to whether the sample surface layer of wax, especially jade flower pieces, in the pits at no wax clean. The surface layer of wax will affect the test results of infrared spectroscopy, also affect UV fluorescence of authenticity.

(3) repair wax dipped emerald
jade wax dipped aging occurs, and then the stew wax can make re-crystallization of the molten wax aging, you can eliminate the adverse effects caused by aging.

Watch waxy gloss reflective surface emerald light, light Zeya, the following figure wax beans is not been treated, was shiny glass

 

[Junkenpo]

"Often in line to see the purple color of green jade is not bad only sell a few hundred dollars, but also with natural A cargo certificate, it is incredible! But in fact is the business use of a new method of polishing powder fraud.
attention Certificate remarks column states that "the surface with polishing powder." This method is polishing polishing polishing powder colorant is added, omit step after cleaning the surface polishing, sealing wax can be directly fixed on the emerald surface. "

in the Emerald final After a process where the polishing powder colorant is added to the emerald polished surface polishing step is omitted after cleaning , sealing wax can be directly fixed on the emerald surface. Polishing powder does not enter the gem inside, neither destroy gems structure does not affect the original color of gems , so there is a strong deceptive , some time after sealing wax off the original color disappears show the true color of emerald.

Polishing is the final step before the completion of the Jade finished. Slow polishing process is performed with a special friction polishing powder and jade. Polishing powder will be more delicate emerald grain polished smooth surface, increasing the emerald surface reflectivity to light, thus forming a smooth surface or smooth shiny specular gloss, improved brightness, reflecting the exquisite jade material. Jade hardness of 7, you can know, polishing powder material hardness greater than 7 to grind to jade. Polishing powder is used chromium oxide, chromium oxide Mohs hardness of 9, light green to dark green, very hard crystals.

After polishing is complete, to the surface of the emerald polishing powder residue cleaning, ultrasonic machine is mainly used for cleaning, washing less alcohol to wipe the place then, after cleaning, sealing wax and then in the emerald surface, the surface has a glistening sheen, showing bright . Role is to jade polishing powder grinding, polishing, polishing powder to wash the end, then, why the emerald contains more polishing powder. 1, directly on the surface staining. The use of colorants in the Emerald finished surface smear, the dye is attached to the surface cracks and gaps among the mineral particles and to the color, different colorants can easily stained emerald color you want, you can infer the role and this is just emerald color change of the surface. With a magnifying glass, you should be able to see the coloring agent is attached to the surface of the mineral particles distributed in small gaps and cracks in the reticular, punctate. This approach is simple, there are questions as to why there will be finished surface polishing jade powder, the only explanation is that after the completion of the Emerald polished finished cleaning it did not apply directly to the surface of the colorant in Emerald. 2, polishing powder, a coloring agent. When polishing, the polishing polishing powder colorant is added, after the polishing, the surface of the cleaning step is omitted, sealing wax to be directly fixed to the surface of the emerald. 3, A cargo of reasons. For direct dyeing germplasm mostly poor jade, because only the surface slightly stained emerald internal structure is not destroyed, still retains some of the characteristics of natural jade, such as the surface is smooth and bright, shiny glass, which is labeled "Emerald on the inspection certificate (A cargo). " However, the coloring agent attached to the surface of the emerald is an indisputable fact that, although there is no change in the internal structure of jade, but jade has a deadly impact, so, still identified as A goods, it is the test results do not understand.

This should be a national standard emerald loopholes. (Currently a large number of products containing the emerald polishing powder, identified by the agency has no certificate of authenticity, the current wholesale market in Myanmar over the bracelet there, a lot of inclusive polishing powder, businesses are required to alert the buyer) to this polishing powder is currently no good explanation, but it is handled manually ironclad fact polishing powder is harmful to humans is not known, but it can be seen that the low price will not be a good thing, beautiful women who have been accustomed to cover up with makeup cosmetics, beauty Tutu Living face, seemingly real, but hidden camouflage. Makeup is not absent, but concealed. Polishing powder as beautiful face powder, the makeup is Zayang unknown.

LINK

 

[Junkenpo]

Polishing powder containing blue-green
bracelet polishing powder in the more common, with a magnifying glass, you should be able to see the coloring agent is attached to the surface of the mineral particles distributed in small gaps and cracks in the reticular, punctate.

LINK

 

[Junkenpo]

LINK

Thanks for moderator attention, and the intentions of the forum, thank you, polishing powders and waxes such as beauty makeup of the heavy makeup, not identified by the certification issued by the beauty, the beauty can not tell whether it is because of the devil. The makeup, to issue a certification which is beautiful, will be marked this beauty through makeup.

If the makeup is very light very light, testing certificate issued by the agency in the remarks column undeclared, which is a quantitative issue, writing this post is mainly polished pink bracelet is currently appearing on the market, more and more, more and more wax more like a B + C identification distinction, the only constant cliché, in order to reduce fraud in the living space, although B + C also has merit. But make-up beauty is now on the market when the price of beauty Bluff is not right, someone turned to some language content on the micro-letters, but the picture is the latest original starter, posts personally selected picture is shot, the selection of some of the more The typical picture. Also some pictures as polishing powder content and can not issue a certificate of authenticity and is willing altar faithful detour

 

[Junkenpo]

This THREAD is also awesome and full of pictures of B, B+C jade. Run it through Chrome for translation.

I never bothered to download google chrome until this year and even though I still use safari for most things, now I'm super glad I do have chrome. lol

 

[3Jems]

Actually, this might be a better picture.

Omg!! This set is absolutely heavenly. I'm drooling. No way is this gaudy. It is exquisite. How I wish my mom has such nice jewelry set to pass to me.

 

[3Jems]

要注意不少浅紫色的是表面染色的
becareful most this lavender bangle had been color polishing

Here pics under ... bangle had been color polishing

they all look so beautiful .. so hard to tell all those bangles had been color polishing @@ now i am scare to go buy jade bangle without certify !!!!

Gosh. I would never hv suspect these bangles to be color polish. From the pics, I do not see the color saturation that was obvious in the bangle I had. Thank goodness we hv a gem lab to run tests locally. Else I'll be so paranoid buying more Jade bangles.

 

[3Jems]

This is my girl wearing her great grandma's kebaya.

So pretty and slim. She looks very nice in the kebaya & Jade bangle. Btw, is she in her teens?

 

[3Jems]

JKP,
Thanks for sharing all the info about color polish. From the links you posted, looks like color polish Jade is getting more common cos many people are avoiding B/C grades. So Jade sellers now turn to color polish to enhance natural grade A Jade. Currently jades from Myanmar hv higher chance of being color polish. Though the Chinese are catching up too. If the polish is not well done, it can be 'discovered' by using a loupe or microscope cos the color will gather mainly in the crevices & pores of the Jade. Hhmm... Looks like I'll need to bring a small torch & 10x loupe whenever I'm going to buy more Jade.