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 Triphylite at Worcester Co., Massachusetts, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 253Ma - 227Ma 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
Alexandra-0415	253	227				60895	Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA	Zartman et al. (1970)	GSAB81_3359

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
Alexandra-0415	253	227				60895	Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA	Zartman et al. (1970)	GSAB81_3359
USGS-Rb-Sr-00877	372.14	342.14				15191	Millstone Hill Quarry, Worcester, Worcester Co., Massachusetts, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06279	379	365				15191	Millstone Hill Quarry, Worcester, Worcester Co., Massachusetts, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06280	379	365				15191	Millstone Hill Quarry, Worcester, Worcester Co., Massachusetts, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06281	379	365				15191	Millstone Hill Quarry, Worcester, Worcester Co., Massachusetts, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06282	379	365				15191	Millstone Hill Quarry, Worcester, Worcester Co., Massachusetts, USA	USGS-Rb-Sr	USGS-Rb-Sr