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 Magnesio-hornblende at Prince Mine Group, Hilton Mines (Hilton Mine Group; Hiltano Group; Hiltano & State Of Maine Group), Copper Camp, Hilton (Lead Mountain), Empire District, Empire Mts, Pima Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1405Ma - 1345Ma 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_00000322	1405	1345		Muscovite		31691	Empire District, Empire Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201