| | | | | | — | (niobobaotite ) | (IMA CNMNC ) | IMA 2022 — 127 a | | — — | | | 20~80μm Ba Nb Ti | Fe Cl | Ba4 Ti2.5Fe2 + 1.5 Nb4Si4O28Cl | I41a (#88) | | | 150 2023 | ) | | | — | | | | | | | | | | | | | |