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 Polybasite at Proano Mine, Fresnillo Municipality, Zacatecas, Mexico

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 32Ma - 28Ma 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
EG98_1029_tbl_1_030	32	28				4523	Fresnillo De Gonzalez Echeverria (Fresnillo), Fresnillo Municipality, Zacatecas, Mexico	Camprubi et al. (2003)	EG98_1029