Ages for Phlogopite at Main Pit, Bayan Obo Deposit (Bayun-Obo Deposit; Baiyunebo Deposit), Bayan Obo, Bayan Obo Mining District, Baotou League (Baotou Prefecture), Inner Mongolia, China

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1600Ma - 541Ma at this locality