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 Chalcopyrite at Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 94Ma - 94Ma at this locality

Age range from children

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
Jen_0000702	94	94				29899	Rainy Creek Mine (W. R. Grace Mine), Libby, Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USA	Woolley and Kjarsgaard (2008)	GSCOF5796

Locality 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
Jen_0000702	94	94				29899	Rainy Creek Mine (W. R. Grace Mine), Libby, Libby Mining District (Snowshoe Mining District), Lincoln Co., Montana, USA	Woolley and Kjarsgaard (2008)	GSCOF5796