2022.10.23.辛堪克斯研討會(Sinkankas Symposium)雙講座翻譯-“亞歷山大變色石的地質與開採”+”變色寶石設計分享”暨聯誼晚宴。舉辦場地：台中寶麗金燕會館2F金珍饌。
Photos from Taichung edition of GIA-AATC Translations from Sinkankas Symposium – “Overview of the Geology & Mining of Alexandrite” by Wim Vertriest & “Design with Color-Change Gemstones” by Niveet Nagpal. Event Date: 2022.10.23.
