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 Tetrahedrite-(Zn) at Spotted Horse Mine (Spotted Horse Claim; Kentucky Favorite Claim), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 73.3Ma - 53.7Ma 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
Hg-00101	73.3	53.7		Imiterite	Hg	50255	Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA	Marvin et al. (1980); Zhang and Spry (1994)