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

463 registered articles
(updated on August 08, 2026)

CONFERENCE PROCEEDINGS FREE ACCESS

2026 Annual Meeting

The influence of various minerals on the growth of quartz crystals Masayuki Kawasaki
Prehnite cored nodular zoned structure in jadeite from Itoigawa Ayano Nakajima, Kanako Ito, Masaki Furuya
Automatic detection and classification of inclusions by Artificial Intelligence (3rd Report) Takahiro Sato, Takashi Nakamura, Toshiyasu Komatsu, Teruo Sano, Kazuhiro Miyagawa, Shigeki Kasahara, Kazuto Koizumi, Masaki Furuya, Yasushi Takahashi
Trace-element chemistry of jadeite-omphacite pebbles from Itoigawa district, Niigata prefecture, Japan: Relationships between chemistry and colors, and possibility of geographic origin determination Makoto Miura, Hikaru Sato, Yusuke Katsurada, Kazuko Saruwatari, Jie Ren, Takahiko Ogawara, Ko Takenouchi

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Most viewed articles (July 2026)

1

A Cause of the Whitish Internal Zone in Opal

Released on J-STAGE: July 08, 2022 | 2022 Annual Meeting Pages 15

* Yasushi Takahashi, Junji Yamanaka, Keisuke Arimoto, Takuma Ampo
2

Gemstones in the mineral collection of National Museum of Nature and Science, Tokyo

Released on J-STAGE: July 06, 2026 | 2026 Annual Meeting Pages 1-2

* Ritsuro Miyawaki
3

Identification of Rare Stone - Avdeevite

Released on J-STAGE: July 06, 2026 | 2026 Annual Meeting Pages 13

* Zhenghao Zhao, Hiroshi Kitawaki, Kentaro Emori, Naoya Fujita, Makoto Okano, Minori Fukushima
3

Manufacturers of synthetic gem diamonds in China and India and their products

Released on J-STAGE: July 03, 2019 | 2019 Annual Meeting Pages 5

* Hiroshi Kitawaki, Kentaro Emori, Mio Hisanaga, Masahiro Yamamoto
5

Trace-element chemistry of jadeite-omphacite pebbles from Itoigawa district, Niigata prefecture, Japan: Relationships between chemistry and colors, and possibility of geographic origin determination

Released on J-STAGE: July 06, 2026 | 2026 Annual Meeting Pages 6

* Makoto Miura, Hikaru Sato, Yusuke Katsurada, Kazuko Saruwatari, Jie Ren, Takahiko Ogawara, Ko Takenouchi

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