Yes Emerald is a mineral aggregate. To identify jadeite, you can go to Lincang Jade Quality Supervision and Testing Center, located in Nantian Road, Lincang.
National level: National Jewelry and Jade Quality Supervision and Inspection Center (formerly affiliated to 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.
. Yunnan Jewelry Testing Center is located at No.35 Beijing Road, Kunming, Yunnan Province. Tel: 0871-351583 Yunnan Jewelry and Jade Ornaments Quality Supervision and Inspection Institute Kunming Dongfeng East Road 169 Tel: 0871-33441.
The working hours of Yunnan Jade Appraisal Center are from 9 am to 6 pm. Yunnan Emerald Appraisal Center is located in Quality Supervision Building, No.76 Dongfeng East Road, Panlong District, Kunming. The jade appraisal institution is a full-time institution affiliated to the Market Supervision Administration, and its working hours are the same as those of public institutions. I don't go to work on Saturday and Sunday, and Monday to Friday is the best.
Ruili Yun Jian Jewelry Testing Center is a third-party impartial organization mainly engaged in the inspection and testing of jewelry, jade and precious metals. It has passed the accreditation examination of inspection and testing institutions of Yunnan Market Supervision Bureau and obtained relevant qualification certificates of regular jewelry and jade appraisal institutions, so Ruili Yun Jian Jewelry Testing Center is formal.