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 Holtedahlite at Tingelstadtjern Quarry, Modum, Buskerud, Norway

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 541Ma - 541Ma at this locality

Locality age (deprioritized)

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
Michelle_0062	541	541				7838	Tingelstadtjern Quarry, Modum, Buskerud, Norway	Krause et al. (1999)	AM84_1195