National level: National Jewelry and Jade Quality Supervision and Inspection Center (formerly under the Jewelry and Jade Jewelry Management Center of the Ministry of Land and Resources), etc. Provincial level: Yunnan Jewelry Quality Supervision and Inspection Institute (affiliated to Yunnan Quality and Technical Supervision Bureau), etc.

Usually, local jewelry and jade appraisal institutions can identify jadeite original stones. Of course, if you think it's troublesome to send it for identification, you can identify it by listening to the sound, weighing and bending hardness.

Jade rough stones can be found in the Lu Wu River valley in northern Myanmar, and can also be bought in trading markets. Jade, also known as jadeite, jadeite and Burmese jade, is a kind of jade. The correct definition of jadeite is fibrous aggregate composed of pyroxene minerals, mainly jadeite minerals.

The original jadeite stone at the entrance of Mu Na market is mostly fine sand, with white to yellowish brown skin, thin skin and clear boundary between skin and body. The jadeite stone is denser and more transparent inside. As soon as the flashlight is turned on, you can see _ flocculent flowers. Most of the original jadeite stones in Houjiangchang are yellow and white.

The original jade stone is called gambling stone, and no instrument can quickly judge whether it is "Baoyu" or "defeated" through this shell. Jade is wrapped in a weathered leather bag when it is mined, so it is impossible to know whether it is good or bad. Jade whose quality can only be known after cutting is called gambling stone.

The original jadeite stone can be found in the jadeite mining area, but it is difficult to find it elsewhere. Emerald is a kind of precious stones, mainly produced in China, Myanmar, Canada, Russian and other places. Myanmar is a world-famous jade producing area. You can go to the local jade mining area to find the original stone.

Can the jadeite original stone pass the security check at the long-distance bus station?

Jade raw stone is not prohibited, and high-speed rail can be brought. The regulations of the railway company are as follows: 1. Free weight of passengers' belongings, 20 kg for adults, 10kg for children (including free children) and 35 kg for diplomats.

Can Dai Yuxi pass the airport security check? Of course, the jade pendant you mentioned belongs to ordinary personal ornaments, not inflammable, explosive and controlled dangerous goods, not drugs and restricted articles. You can go through security with it. No problem. There are no hard and fast rules for men to wear jade pendants.

Emerald is not metal, so it won't ring when it passes through the security gate. Emerald can be taken on the plane. Jed can fly and pass the security check without any problems! Jade belongs to jade, polished round and ring-shaped, which will not pose a threat to personal safety. For a long time, during boarding and security check, Jade has never been prevented from boarding or needed to be checked in.

Teacher, Lao Yu, can you pass the national inspection after re-polishing?

1. First of all, the old jadeite can pass the inspection and obtain the appraisal certificate. But there are two situations that can't pass the machine inspection: 1, the optimization of pickling, glue injection and dyeing treatment of modern people. Nowadays, antique jadeite is very rampant, and it is reasonable to make blatant fraud under the banner that the old jadeite can't pass the inspection.

2. First of all, the old jadeite with natural jadeite texture can definitely pass the machine inspection. There are two reasons why it can't pass the inspection: the old jadeite had a manual dyeing process at the beginning of production, when color was more important than variety. Now the antique jade is optimized, under the name of Lao Yu.

3. Hello, I'm Brother Yu. Antique jadeite can completely pass the national inspection. Time may change the appearance of jade, but it will never change its essence.

Where can the jadeite original stone be identified?

Jade can go to an authoritative jewelry and jade appraisal institution with national qualification certification for instrument appraisal and issue an appraisal certificate. The simplest way to identify jadeite is: luster: after being soaked in strong acid and alkali, jadeite has loose structure, and there are pits on the surface before it is full, which makes it spread and its luster weaken.

Usually, local jewelry and jade appraisal institutions can identify jadeite original stones. Of course, if you think it's troublesome to send it for identification, you can identify it by listening to the sound, weighing and bending hardness.

Jade can go to an authoritative jewelry and jade appraisal institution with national qualification certification for instrument appraisal and issue an appraisal certificate. In this way, the result is exact, the authenticity is clear at a glance, and it can be foolproof.

Jade can be identified in some identification centers or institutions, or by a professional appraiser. If you want to identify jadeite, the easiest and most effective way for beginners is to send jadeite to the local jadeite quality inspection center for inspection, and at the same time send the jadeite identification certificate to the quality inspection center for identification.

Provincial level: Yunnan Jewelry Quality Supervision and Inspection Institute (affiliated to Yunnan Quality and Technical Supervision Bureau), etc. Municipal level: Dalian Gold, Silver and Jewelry Supervision and Inspection Center (affiliated to the Product Quality Supervision and Inspection Institute of Dalian Bureau of Quality and Technical Supervision), etc.

Do all good jadeites need national inspection and certification?

Jade can go to an authoritative jewelry and jade appraisal institution with national qualification certification for instrument appraisal and issue an appraisal certificate. In this way, the result is exact, the authenticity is clear at a glance, and it can be foolproof.

High-quality jadeite green is rich, transparent, oily and free of impurities, and the sound is crisp and loud when struck with hard instruments; The imitation of the material is made of hand-baked glass. The green is even and deep, some have bubbles, and the sound is hoarse when struck with hard instruments.

Check one of the evaluation results. If it is not natural A jade, the result will not be marked with the words "A" and "Natural". It must be noted that only natural A jadeite will have a certificate issued.

Can jadeite original stone be detected?

General jadeite original stone can be identified by local jewelry and jade appraisal institutions. Of course, if you find it troublesome to send it for identification, you can judge its authenticity by listening to the sound, weighing and scraping the hardness.

There are several methods to identify jadeite original stone: mineral composition: gambling stone fake skin is generally calcite, Yingshi, dolomite, kaolinite, illite, barite and so on. It can be seen that carbonate can be detected by acid drop method. If it's fake, there will be bubbles.

Color: The overall color of the jadeite stone should be uniform without chromatic aberration, which can be detected by hand or lighting tools. Transparency: The transparency of jadeite stone is also very important. The higher the transparency, the higher the value. Texture: Good jadeite stone is hard, tough and not easily broken, which can be tested by steel needle.

At present, the jadeite original stone in Myanmar can not be detected by instruments, and even the quality of jadeite can not be detected, so there is a gambling industry. At present, the original jadeite stones in Myanmar can only be peeled off one by one by means of small window opening, multiple window opening, large window opening, cutting and slicing, so as to see and judge the situation inside.