Oboniobite (Mg4Nb2O9), a new magnesic-niobic oxide mineral from the Bayan Obo deposit, China. - She, Hai-Dong; Fan, Hong-Rui; Gu, Xiang-Ping; Li, Xiao-Chun; Yang, Kui-Feng; Wang, Qi-Wei; Jin, Hai-Long; Chen, Biao; Pan, Yong-Xin (American Mineralogist, 2025)