Blue opal from Akase, Ishikawa, Japan
Released on J-STAGE: August 31, 2016 | 2016 Annual Meeting
* Ayano Nakajima, Masaki Furuya
The health benefits and earth history hidden in Kuji amber
Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 1-2
* Ken-ichi Kimura
“Japanese” Trapiche garnet: Gemology and Mineralogy of alluvial garnet from Mt. Nijyo, Nara
Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 4
* Makoto Miura, Jie Ren
Special lecture : The Gold Culture of the Silla
Released on J-STAGE: September 30, 2012 | 2012 Annual Meeting
* Won Tack Oh
Treated opal from Ethiopia
Released on J-STAGE: October 01, 2014 | 2014 Annual Meeting
* Chihiro Fukuda, Tomohiko Miyazaki, Bo-Hyun Lee
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