Gemmological and Mineralogical Characteristics of Nephrite from Ya’an,Sichuang Province
JIN Xiaoting;QIU Zhili;DAI Sulan;YI Jianhua;LI Liufen;ZHANG Yuefeng;School of Earth Science and Geological Engineering;Gems Testing and Research Center;Sun Yat-sen University;Sichuan Institute of Product Quality Supervision & Inspection;BaoxingRundong Mining Sector Development Incorporated Company;