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 Efim Area, Kumak Ore Field, Orenburg Oblast, Russia

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 230Ma - 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
Cr-00061	230	220		Chromferide, Chromium, Ferchromide	Cr	16770	Efim Area, Kumak Ore Field, Orenburg Oblast, Russia	Sazonov et al. (2001)	EG96_685