Ages for Pyrolusite at Lee Yim Mine (Lee Yim Deposit; Gallinger-Root Mine; Manganese 1-10 Claims; Root Mine; Garringer Mine; Barringer Mine; Lavic Mountain Mine), Ludlow (Stagg), San Bernardino Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 22Ma - 18Ma at this locality