Ages for Muscovite at Copper Mountain Mine (Manganese Blue Mine; Copper Mountain Claim Working; Old Blue Shaft; Detroit Copper Co. Group; Manganese Blue Ore Body), Morenci, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee 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