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 Colusite at Montago Mine (Collar Gulch Mine), 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 70.9Ma - 63.3Ma at this locality

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-U-Th-Pb-00576_207_235	70.9	63.3				163379	Montago Mine (Collar Gulch Mine), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus Co., Montana, USA	USGS-U-Th-Pb	USGS-U-Th-Pb

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)