不純物、組成、育成雰囲気による合成スピネル結晶の色の変化

勝亦 徹; 白竹 香純; 相沢 宏明; 小室 修二

doi:10.14915/gsj.37.0_16

2015 Annual Meeting

DOI https://doi.org/10.14915/gsj.37.0_16

Conference information

Host: The Gemmological Society of Japan

Abstracts of Papers Presented at 2015 Annual Meeting of the Gemmological Society of Japan

Color variations of MgAl₂O₄ crystals depending on impurity, composition and growth atmosphere

*Toru Katsumata, Kasumi Shiratake, Hiroaki Aizawa, Shuji Komuro

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Keywords: spinel crystal, color, composition, impurity, atomosphere

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Pages 16-

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Abstract

Impurity doped MgAl₂O₄ spinel crystals were grown by floating zone technique. Variations of crystal colors with growth conditions, such as impurities, compositions and O2 concentrations of atmosphere are reported.

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