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 Tinton Pegmatite District, Lawrence Co., South Dakota, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of Ma - Ma 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
NAVDAT-6900	59	38				121691	Bear Gulch Pegmatite Prospect (Elizabeth No. 8 Claim), Tinton Pegmatite District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT
NAVDAT-92355	58	46				121691	Bear Gulch Pegmatite Prospect (Elizabeth No. 8 Claim), Tinton Pegmatite District, Lawrence Co., South Dakota, USA	NAVDAT	NAVDAT