R1: Characterization and description of minerals (Joint Session with The Gemmological Society of Japan)

[R1-04] Differences of trace element in Japanese Akoya Cultured Pearl

*Kentaro Emori¹, Hiroshi Kitawaki¹, Masahiro Sato², Junko Yazaki² (1. Central Gem Laboratory, 2. Pearl Science Laboratory)

Keywords:Akoya Cultured Pearl, LA-ICP-MS

In order to try for origin determination of pearl using LA-ICP-MS, we analyzed changes through the treatments of pearls and differences among “Shima, Mie”, “Komobuchi, Ehime”, “Amakusa, Kumamoto”, “Iki, Nagasaki”, “Tsushima, Nagasaki” and “Sasebo, Nagasaki”.