Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Muscovite at Gulch A Pegmatites Occurrence, Varney Mining District, Madison Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 70Ma - 70Ma at this locality

Locality age (remote)

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
Mo-00186	70	70		Molybdenite, Powellite, Wulfenite	Mo	23236	Madison Co., Montana, USA	Gammons et al. (2006)	MWE25_70