1, National Jewelry and Jade Quality Supervision and Inspection Center
The National Jewelry and Jade Quality Supervision and Inspection Center is a national professional quality inspection institution authorized by the relevant competent departments of the state according to law, and it is the authoritative institution for jewelry and jade testing in China. There are nearly 40 professional technicians in the testing center, including 10 senior technical title, 10 national quality inspector qualification and 18 international authority qualification certificates.
2. Jewelry Testing Center of China Geo University (Wuhan)
China Geo University (Wuhan) Jewelry Testing Center was established on June 6th1993,65438+,which is an inspection and testing institution approved by China Geo University (Wuhan), a national key university directly under the Ministry of Education. It is a national inspection and testing institution for jewelry, jade and precious metals approved by the State Administration of Market Supervision and the National Accreditation Committee.
3. Jewelry Testing and Research Center of Jewellery Chamber of Commerce of the National Federation of Industry and Commerce
Jewellery Testing and Research Center of Jewellery Merchants Association of the All-China Federation of Industry and Commerce was established in August 2002. It is directly affiliated to the Gold, Silver and Jewelry Chamber of Commerce of the All-China Federation of Industry and Commerce. It is a vice-president unit with independent legal personality.
The origin of jadeite name
Emerald has a long history. Ouyang Xiu's Record of Returning to the Field in the Northern Song Dynasty contains two volumes: "There is a jade poppy in (Ouyang Xiu), which is very ancient and beautifully shaped. Only May Yu Sheng thought it was Jasper. I tasted it for my family when I was in Yingzhou. Deng Baoji was ruled by military forces. He is really a veteran of the dynasty and knows this. He said, this baby is also called jade.
All the treasures in the cloud forbidden are hidden in the sacred vault, and there is a jade lamp in the sacred vault, so I know. It can be seen that "jade" refers to green jade for a long time, and it was regarded as a treasure at the latest in the Northern Song Dynasty. Perhaps the ancient "jade" and today's "jade" are heterogeneous with the same name, so Ji Xiaolan said that when he was young, people "didn't regard jade as it".
Reference to the above content: Baidu Encyclopedia-National Jewelry and Jade Quality Supervision and Inspection Center