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 Halotrichite at Eagle Mine (New Jersey Zinc Eagle Mine; Gilman Mine; Wilkesbarre Shaft; Newhouse Tunnel; Little Chief Mine; Iron Mask Mine; Belden Mine; Black Iron Mine), Gilman, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 37.8Ma - 33.8Ma 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
sedznpb-00463	37.8	33.8				3616	Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA	Singer et al. (2009)	USGSOFR2009-1252