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

[R1-P-12] Re-examination of chemical compositions of W- and Nb-rich members of the columbite supergroup from Tahara, Gifu Prefecture, Japan

*Yasuyuki BANNO¹, Toshihiro KOGURE², Taiga OKUMURA² (1. AIST, 2. Waseda Univ.)

Keywords:

Ferberite,Columbite,FTIR,OH,Tahara

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