Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan

Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan

Published by The Gemmological Society of Japan

441 registered articles
(updated on August 31, 2025)

CONFERENCE PROCEEDINGS FREE ACCESS

2025 Annual Meeting

The origin of the cloudiness part (Egg) in opal. Yasushi Takahashi, Yuki Haraguchi, Junji Yamanaka, Keisuke Arimoto, Chiaya Yamamoto, Takuma Ampo
Characteristics of Blue Sapphire from Hainan, China Zhao Zhenghao, Kentaro Emori, Hiroshi Kitawaki
Growth and characteristics of bicolor Fe doped spinel Toru Katsumata, Ayaka Kojima, Miu Kouno, Kotomi Kimura
Nucleus Size of Chinese Freshwater Cultured Pearls IKUO ATSUMI, JYUNKO YAZAKI

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1

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Blue opal from Akase, Ishikawa, Japan

Released on J-STAGE: August 31, 2016 | 2016 Annual Meeting

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Minerals in Toyama Prefectute, Japan

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The health benefits and earth history hidden in Kuji amber

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Special Lecture - The world of rmeralds -

Released on J-STAGE: April 06, 2005 | 2004 Annual Meeting Pages 1

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