Ages for Chalcopyrite at Picacho Copper Mine (Picacho Mine; Picacho Glance; Copper Glance Mine; Copper King Mine), Picacho, Picacho District, Chocolate Mts, Imperial Co., California, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 27.4Ma - 23.9Ma at this locality