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 Chalcocite at Kirwin Mining District (Kerwin Mining District), Park Co., Wyoming, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 40Ma - 40Ma 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
PorphCu-00021	40	40		Anglesite, Chalcopyrite, Copper, Covellite, Cuprite, Epidote, Galena, Gold, Magnetite, Molybdenite, Montmorillonite, Opal, Pyrite, Stephanite	Cu	7313	Kirwin Mining District (Kerwin Mining District), Park Co., Wyoming, USA	Singer et al. (2008)	USGSOFR2008_1155