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 Montmorillonite at Minnesund, Eidsvoll, Akershus, Norway

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 248Ma - 248Ma 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
Be-00036	248	248		Kyzylkumite, Byrudite	Be	13902	Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway	Sundvoll et al. (1990)	TP178_67

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
Be-00036	248	248		Kyzylkumite, Byrudite	Be	13902	Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway	Sundvoll et al. (1990)	TP178_67