かつて製造されたとされる合成ダイヤモンドについて

林 政彦; 高木 秀雄; 安井 万奈; 山崎 淳司

doi:10.14915/gsj.39_0_10

2017 Annual Meeting

DOI https://doi.org/10.14915/gsj.39_0_10

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Host: The Gemmological Society of Japan

Abstracts of Lectures at 2017 Annual Meeting of the Gemmological Society of Japan

Synthetic diamond made by Japanese company formerly

*Masahiko HAYASHI, Hideo TAKAGI, Mana YASUI, Atsushi YAMAZAKI

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Keywords: Synthetic diamond, Toshiba, Japanese company, Cathodoluminescence, Waseda, Mineral collection

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Pages 10

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Abstract

In 1962 synthetic diamond in Japan made by Toshiba Corporation. In 1960s, this synthetic diamond had collected as mineral specimen of Waseda University. The cathodoluminescence (CL) image of the synthetic diamond revealed a structure divided into small sectors showing blue and green colors.

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