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 Calcite at Golden Rule Mine, Granby Field, Tri-State District, Newton Co., Missouri, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 68Ma - 64Ma at this locality

Direct 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
G28_795_001	68	64	Calcite			12395	Picher Field, Tri-State District, Ottawa Co., Oklahoma, USA	Coveney et al. (2000)	G28_795