Ages for Pyrite at Tophet Hill Mine, Lynnfield, Essex Co., Massachusetts, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 369Ma - 246Ma 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
  Alexandra-0417	262	246				22345	Lynnfield, Essex Co., Massachusetts, USA	Zartman et al. (1970)	GSAB81_3359
  Alexandra-0418	268	252				22345	Lynnfield, Essex Co., Massachusetts, USA	Zartman et al. (1970)	GSAB81_3359
  Alexandra-0419	369	349				22345	Lynnfield, Essex Co., Massachusetts, USA	Zartman et al. (1970)	GSAB81_3359