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 Pyrolusite at Seven Mile District, Grand Co., Utah, 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
Giersdorf_00000632	75	75	Uraninite	Uraninite		21766	Shinarump Nos. 1 - 3 Mines, Seven Mile District, Grand Co., Utah, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000633	84	84	Uraninite	Uraninite		21766	Shinarump Nos. 1 - 3 Mines, Seven Mile District, Grand Co., Utah, USA	Miller et al. (1963)	GSAB74_609

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
Giersdorf_00000634	400	400	Uraninite	Uraninite		21766	Shinarump Nos. 1 - 3 Mines, Seven Mile District, Grand Co., Utah, USA	Miller et al. (1963)	GSAB74_609