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 Opal at Muggins Mountains Uranium Prospects, Muggins District, Muggins Mts, Yuma Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 23.2Ma - 21.8Ma at this locality

Age range from children

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_00000402	23.2	21.8				33582	Muggins District, Muggins Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201

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_00000402	23.2	21.8				33582	Muggins District, Muggins Mts, Yuma Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201