R1: Characterization and description of minerals (Joint Session with The Gemmological Society of Japan)

[R1-P-13] Dumortierite and tourmaline from the Itoigawa district, Japan

*Yohei SHIROSE¹, Suzuha Morioka¹, Takahiko Ogawara² (1. Ehime University, 2. Fossa Magna Museum)

Keywords:

dumortierite,tourmaline,Itoigawa,Felsic rock,Foitite

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