Ages for Ferberite at Nederland District, Boulder Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of Ma - Ma 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
  NAVDAT-32602	69.3	56.7				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32622	69.3	56.7				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32630	68	58				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32650	68	58				110167	Jasper Tunnel Occurrence, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32694	67.8	50.2				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32698	67.8	50.2				110167	Jasper Tunnel Occurrence, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32701	69.3	56.7				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32702	69.3	56.7				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  NAVDAT-32780	68	58				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
  USGS-Rb-Sr-05809	1905	1645				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05810	1881.16	1704.4				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05812	1905	1645				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05813	1881.16	1704.4				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05814	1514.98	1460.54				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05815	1514.98	1460.54				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05816	1514.98	1460.54				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05817	1514.98	1460.54				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-05819	1514.98	1460.54				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr