Ages for Chalcopyrite at North San Xavier Pit (San Xavier North Pit; San Xavier Mine), Mission Complex, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, San Xavier (Tohono O'odom) Indian Reservation, Pima Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 56Ma - 56Ma at this locality