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 Uranophane at Crooks Gap-Green Mountain District, Fremont Co., Wyoming, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 35.4Ma - 27.6Ma at this locality

Mineralization age

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
Giersdorf_00000871	28	27.6		Coffinite, Pyrite, Uraninite	U,Pb	7194	Crooks Gap-Green Mountain District, Fremont Co., Wyoming, USA	Ludwig (1979)	EG74_1654
Giersdorf_00000872	35.4	35.4		Coffinite, Pyrite, Uraninite	U,Pb	7194	Crooks Gap-Green Mountain District, Fremont Co., Wyoming, USA	Ludwig (1979)	EG74_1654