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 April 19, 2026)

CONFERENCE PROCEEDINGS FREE ACCESS

2025 Annual Meeting

Hinge ligament of pearl oyster as organic gem material Yusuke Katsurada, Artitaya Homkrajae, Amiroh Steen
The health benefits and earth history hidden in Kuji amber Ken-ichi Kimura
Crystal morphology of spinel from Mogok, Myanmar Yoshimi Takeshita
In South Sea baroque pearls, the consideration for occurrence of pearls called “Keshi” and their physical properties and internal structure Eiko Ito, Yuka Nurino, Kota Kunieda

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Most viewed articles (March 2026)

1

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
2

“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
3

Hinge ligament of pearl oyster as organic gem material

Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 16

* Yusuke Katsurada, Artitaya Homkrajae, Amiroh Steen
4

Gems and new minerals in Iwate Prefecture, Japan.

Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 11

* Masahiko HAYASHI, Fujiko HAYASHI, Atsushi YAMAZAKI
4

Fluorescent opal with polycyclic aromatic hydrocarbon mineral inclusions from Shikaribetsu area, Shikaoi-cho, Hokkaido, Japan

Released on J-STAGE: July 25, 2023 | 2023 Annual Meeting Pages 6

* Takashi Ishibashi, Ryoji Tanaka, Akihito Hagiwara, Yuki Inoue

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