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 Malachite at American Boy Mine (Lost Horse; Rhode Island; Down #1 & #2; Albert Gross; Fraction; New York; American), Piper Gulch, Mansfield Gulch (Mansfield Canyon), Temporal Gulch, Wrightson District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 68.4Ma - 65.4Ma 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_00000357	68.4	65.4				34320	Wrightson District, Santa Rita Mts, Santa Cruz Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201