Ages for Topaz at Curecanti Needle Area, Gunnison Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 1734.13Ma - 1291.3Ma 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
  Bradley_2012_116	1713	1709	Zircon			113764	Black Canyon Beryl Prospect, Curecanti Needle Area, Gunnison Co., Colorado, USA	McCauley and Bradley (2014)	CM52_183
  Bradley_2012_117	1415	1411	Zircon			113764	Black Canyon Beryl Prospect, Curecanti Needle Area, Gunnison Co., Colorado, USA	McCauley and Bradley (2014)	CM52_183
  Jen_0000100	1390.015	1389.985				158735	Curecanti Needle Area, Gunnison Co., Colorado, USA	Anderson (1983)	GSAM161_133
  USGS-Rb-Sr-03999	1371.3	1291.3	Microcline			113937	Last Chance Mine (Unpatented Claim: Peifer; Peifer Quarry), Curecanti Needle Area, Gunnison Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-04009	1734.13	1594.13				113764	Black Canyon Beryl Prospect, Curecanti Needle Area, Gunnison Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-04012	1734.13	1594.13				113764	Black Canyon Beryl Prospect, Curecanti Needle Area, Gunnison Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
  USGS-Rb-Sr-04013	1734.13	1594.13				113764	Black Canyon Beryl Prospect, Curecanti Needle Area, Gunnison Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr