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 Variscite at Fairfax Co., Virginia, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 508Ma - 220Ma at this locality

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
sedcu-00678	220	220			Cu	4204	Fairfax Co., Virginia, USA	Cox et al. (2003)	USGSOFR03_107
USGS-Rb-Sr-06521	508	480				103563	Graham-Virginia Granite Quarry (Mideast Div. Vulcan Materials Company), Fairfax Co., Virginia, USA	USGS-Rb-Sr	USGS-Rb-Sr