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 Forsterite at Coconino Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 4620Ma - 0.63Ma 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
Michelle_0061
NAVDAT-88129	0.85	0.63				53212	Red Mountain, San Franciscan Volcanic Field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA	NAVDAT	NAVDAT

Locality age (prioritized)

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
Kristen002173	188.1	183.5				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747

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-0275	330	324	Zircon			195543	Copper House Mine, Coconino Co., Arizona, USA	Montero et al. (2000)	T317_93
Bradley_2012_071	1698	1696				50635	Inner Gorge, Grand Canyon, Coconino Co., Arizona, USA	McCauley and Bradley (2014)	CM52_183
EG87_1747_002	256	252			U	52744	Pine Nut Mine, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_009	220	180			U	52663	Pigeon Mine, Gunsight Point, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_010	230	210			U	19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_012	170	168			U	49379	Hermit Mine, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_013	142	134			U	52744	Pine Nut Mine, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_014	160	160			U	52663	Pigeon Mine, Gunsight Point, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
EG87_1747_015	220	220			U	19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Giersdorf_00000574	181	161	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000575	217	197	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000577	132	124	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000578	223	213	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000580	102	94	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000581	155	145	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000583	166	158	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000584	200	190	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000586	91	83	Uraninite	Uraninite	U	19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000587	105	97	Uraninite	Uraninite	U	19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Kristen002175	63.9	63.1				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002176	150	148.4				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002177	134.6	128.2				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002178	180	177.2				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002179	470.9	463.3				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002180	56.3	55.7				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002181	144.3	142.9				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002182	121.1	117.3				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002183	293	263				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002184	287	261				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002185	361.1	349.9				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002186	242.8	236.4				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002187	359.2	344.8				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Kristen002188	200	200				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747
Michelle_0056	0	0				16146	Flagstaff, Coconino Co., Arizona, USA	Guild (1920)	AM5_169
Mo-00123	222	196		Ferrimolybdite, Iriginite, Jordisite, Umohoite, Ilsemannite	Mo	11484	Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Wenrich (1986)	AG1_469
Mo-00123a	200	200	Uraninite			11484	Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Wenrich (1986)	AG1_469
NAVDAT-4114	0.7	0.2				51593	Main Rhyolite Cone, O'Leary Peak, San Franciscan Volcanic Field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-6066	1.8	0.01				50950	San Francisco Mountain, San Franciscan Volcanic Field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88129	0.85	0.63				53212	Red Mountain, San Franciscan Volcanic Field (San Francisco Peaks; San Francisco Mts), Coconino Co., Arizona, USA	NAVDAT	NAVDAT
sedcu-00703	180	180			Cu	41243	White Mesa Mining District, Coconino Co., Arizona, USA	Cox et al. (2003)	USGSOFR03_107

Locality age (deprioritized)

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
Giersdorf_00000576	730	650	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000579	1480	1320	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000582	1170	1090	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000585	830	730	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Giersdorf_00000588	447	357	Uraninite	Uraninite	U	19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Miller et al. (1963)	GSAB74_609
Kristen002174	441.3	430.5				19917	Orphan Mine (Orphan Lode; Orphan N.P. 2004; Golden Crown Mining Co. Property; Western Gold And Uranium Property), Grand Canyon Village, Orphan Mining District, South Rim, Coconino Co., Arizona, USA	Ludwig and Simmons (1992)	EG87_1747