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 Ilsemannite at Sandstone Mine, Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 260Ma - 3Ma at this locality

Locality age (remote)

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_00000589	260	250	Uraninite	Uraninite	U	262609	Haystack Butte (Haystack Mountain), Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000590	180	170	Uraninite	Uraninite	U	262609	Haystack Butte (Haystack Mountain), Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000593	83	73	Uraninite	Uraninite	U	48060	Section 33 Mine, Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000594	113	101	Uraninite	Uraninite	U	48060	Section 33 Mine, Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000701	115	110			U	33622	Jackpile Mine (Jackpile-Paguate), Laguna District, Cibola Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000702	155	150			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000703	148	130			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000704	130	115			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000705	130	115			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000706	106	80			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000707	12	3			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23
Giersdorf_00000708	7	3			U	22034	Grants District, McKinley Co., New Mexico, USA	McLemore (2011)	TMG48_23

Locality age (deprioritized) (remote)

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_00000591	180	140	Uraninite	Uraninite	U	262609	Haystack Butte (Haystack Mountain), Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000592	555	485	Uraninite	Uraninite	U	48060	Section 33 Mine, Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000595	850	790	Uraninite	Uraninite	U	48060	Section 33 Mine, Ambrosia Lake Sub-district, Grants District, McKinley Co., New Mexico, USA	Miller et al. (1963)	GSAB74_609