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 Pyrite at Boulder Co., Colorado, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 70.7Ma - 0Ma 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
NAVDAT-2694	70.7	57.9				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
Hg-00080	65.5	0		Calomel, Coloradoite, Magnolite, Mercury	Hg	24262	Magnolia District, Boulder Co., Colorado, USA	Kelly and Goddard (1969)	GSAM109_237

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
Hg-00080	65.5	0		Calomel, Coloradoite, Magnolite, Mercury	Hg	24262	Magnolia District, Boulder Co., Colorado, USA	Kelly and Goddard (1969)	GSAM109_237
Mo-00187	65.5	0		Molybdenite	Mo	24262	Magnolia District, Boulder Co., Colorado, USA	Kelly and Goddard (1969)	GSAM109_237
NAVDAT-128174	56	46				110360	Phillips (Meadow Lark; Lee S.; Sur No. 209; Storm Occurrence), Sugarloaf District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-128206	65	55				110350	Pandora No. 1 & 4 Lode Claims, Magnolia District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-128208	65	55				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-16628	65	55				110280	Modoc, Ward District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2631	67.4	65.2				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2632	67.4	65.2				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2633	67.4	65.2				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2634	67.4	65.2				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2635	67.4	65.2				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-2694	70.7	57.9				110453	Snowy Range Mine, Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32600	69.3	56.7				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32602	69.3	56.7				110569	Unknown Silver - Gold Occurrence (MRDS - 10091285), Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32607	69.3	56.7				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32608	69.3	56.7				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou 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-32623	69.3	56.7				278552	Grand Island, Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32624	69.3	56.7				278552	Grand Island, Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32630	68	58				110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32648	69.3	56.7				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32649	69.3	56.7				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32650	68	58				110167	Jasper Tunnel Occurrence, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32692	67.8	50.2				110572	Unknown Silver Occurrence (MRDS - 10017330), Caribou 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-32719	61	57				110316	New Rival - Black Rose, Ward District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32731	63	45				109822	Albion (Comanche; Maine; Washington; Penobscot; Monarch Occurrence), Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32734	74.8	61.2				109822	Albion (Comanche; Maine; Washington; Penobscot; Monarch Occurrence), Lake Albion, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32740	59	49				110618	White Rock, Gold Hill District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-32752	60	50				110540	Unknown Gold Occurrence (MRDS - 10017618), Gold Hill 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-04041	54	54				110360	Phillips (Meadow Lark; Lee S.; Sur No. 209; Storm Occurrence), Sugarloaf District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04130	1704.13	1624.13				110054	G. W. Horton Mill Site Occurrence (Church Placer; Clear Water Placer; Ravens View; Horseshoe Placer; Hubbard Placer), Sugarloaf District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04162	1449.41	1389.41				110284	Mona No. 9 Claim, Crystal Mountain, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
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
USGS-U-Th-Pb-02102_206_238	1414	1414	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02102_207_206	1653	1653	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02102_207_235	1512	1512	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02103_206_238	1353	1353	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02103_207_206	1646	1646	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02103_207_235	1471	1471	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02104_206_238	1179	1179	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02104_207_206	1629	1629	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02104_207_235	1349	1349	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02105_206_238	935	935	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02105_207_206	1591	1591	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02105_207_235	1154	1154	Zircon			110604	Walker Ranch, Boulder County Tungsten District, Boulder Co., Colorado, USA	USGS-U-Th-Pb	USGS-U-Th-Pb