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 Pyrolusite at Harshaw District, Patagonia 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 178Ma - 166.4Ma 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
USGS-Rb-Sr-06648	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr

Locality age

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
USGS-Rb-Sr-06648	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06649	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06650	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06651	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06652	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06653	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06654	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06655	178	166.4				187385	Hermosa Group, Hardshell Gulch, Harshaw, Harshaw District, Patagonia Mts, Santa Cruz Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr