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 Beryl at Crystal Mountain, Boulder Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1449.41Ma - 1389.41Ma 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-04162	1449.41	1389.41				110284	Mona No. 9 Claim, Crystal Mountain, Boulder Co., Colorado, 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-04162	1449.41	1389.41				110284	Mona No. 9 Claim, Crystal Mountain, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr