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 Epsomite at Pima Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 2000Ma - 62.9Ma 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-51646	2000	0				190326	Unnamed Cu Prospect (5), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
Mo-00053	63.5	62.9	Molybdenite	Molybdenite	Mo	3374	Silver Bell Mine, Mineral Mountain, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA	Barra et al. (2005)	EG100_1605

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
Jen_0000004	60	56	Zircon			277574	Coyote Mountains Wilderness Area, Coyote District, Coyote Mts, Pima Co., Arizona, USA	Černý (1991)	PR51_429

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
EG94_211-00047	63	63				3370	New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00048	63	63				3370	New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00049	63	63				3370	New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00050	67	67				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00051	67	67				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00052	63	63				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00053	58	58				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00054	58	58				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
Giersdorf_00000322	1405	1345		Muscovite		31691	Empire District, Empire Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000335	925	865		Muscovite		45005	Busterville Mine, Avra, Amole District, Tucson Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000342	160	150				31283	Amole District, Tucson Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000348	102	98				35515	Cababi District (Comobabi District), Comobabi Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000352	72.2	68.8				31283	Amole District, Tucson Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000355	70	67.2				31250	Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000364	60	57.2				45005	Busterville Mine, Avra, Amole District, Tucson Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000374	51.9	49.7				35638	Roadside Mine (St. Francis Mine; Coyote Claim), Pan Tak, Coyote District, Coyote Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000377	48	46				190464	Gunsight Hills, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000378	41.1	39.1				190464	Gunsight Hills, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000381	30.9	29.7		Muscovite		35365	Baboquivari District, Baboquivari Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000382	145	201.3				35365	Baboquivari District, Baboquivari Mts, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000437	17.9	16.9				39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000445	16.11	15.31				39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000446	16.06	14.98				43662	Batamote Mts, Ajo Area, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000448	15.84	14.94				39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Shafiqullah et al. (1980)	AGSD12_201
Mo-00053	63.5	62.9	Molybdenite	Molybdenite	Mo	3374	Silver Bell Mine, Mineral Mountain, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA	Barra et al. (2005)	EG100_1605
Mo-00122	63.1	56.9		Ferrimolybdite, Lindgrenite, Molybdenite	Mo	11013	Esperanza Mine [new] (Esperanza Pit; Esperanza Open Pit Mines; West Esperanza Mine), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Titley et al. (1986); Livingston et al. (1968); Barra et al. (2005)
NAVDAT-16805	67.1	54.9				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16806	67.1	54.9				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16807	67.1	54.9				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16808	67.1	54.9				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16810	27.5	22.5				189558	Old Hickles Property, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16811	27.5	22.5				189558	Old Hickles Property, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16818	27.5	22.5				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-16822	25	0				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51637	2000	0				189552	Unnamed Silica Quarry (1), Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51638	2000	0				189552	Unnamed Silica Quarry (1), Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51644	2000	0				31830	Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51646	2000	0				190326	Unnamed Cu Prospect (5), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51659	2000	0				190326	Unnamed Cu Prospect (5), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88776	27.7	22.3				67392	Eighty-Five Group, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88787	23.9	23.5	Zircon			64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88792	23.9	23.5	Zircon			64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88794	65	63				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88795	65	63				64136	Camelback Mountain, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88801	23.9	23.5	Zircon			189558	Old Hickles Property, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88803	23.9	23.5	Zircon			189558	Old Hickles Property, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-88804	23.9	23.5	Zircon			189558	Old Hickles Property, Ajo District, Pima Co., Arizona, USA	NAVDAT	NAVDAT
PorphCu-00011	63	63		Albite, Alunite, Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Cuprite, Epidote, Gold, Ilmenite, Jarosite, Magnetite, Malachite, Molybdenite, Pyrite, Shattuckite, Sphalerite	Cu	3370	New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00012	58	58		Actinolite, Bornite, Brochantite, Chalcopyrite, Chrysocolla, Copper, Diopside, Epidote, Ferrimolybdite, Fluorite, Galena, Magnetite, Molybdenite, Montmorillonite, Powellite, Pyrite, Pyrolusite, Pyrrhotite, Scheelite, Siderite, Sphalerite, Wollastonite	Cu	3376	Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00037	57	53		Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Enargite, Epidote, Ferrimolybdite, Fluorite, Galena, Jarosite, Kaolinite, Magnetite, Marcasite, Molybdenite, Montmorillonite, Pyrite, Pyrrhotite, Rutile, Sphalerite	Cu	11013	Esperanza Mine [new] (Esperanza Pit; Esperanza Open Pit Mines; West Esperanza Mine), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00087	69	66		Actinolite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Cuprite, Diopside, Epidote, Jarosite, Malachite, Molybdenite, Pyrite, Tenorite, Wollastonite	Cu	31299	Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00088	56	56		Altaite, Alunite, Bornite, Chalcocite, Chalcopyrite, Chrysocolla, Epidote, Galena, Kaolinite, Molybdenite, Pyrite, Sphalerite, Tenorite, Neotocite	Cu	32000	North San Xavier Pit (San Xavier North Pit; San Xavier Mine), Mission Complex, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, San Xavier (Tohono O'odom) Indian Reservation, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00089	58	58		Actinolite, Chalcopyrite, Chrysocolla, Jarosite, Pyrite	Cu	32002	Mission Pit (Mission Mine [old]; East Pima Mine; Mission Porphyry Copper Deposit), Mission Complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00109	62	56		Bornite, Chalcopyrite, Chrysocolla, Diopside, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Scheelite, Sphalerite, Wollastonite	Cu	49290	Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
USGS-Rb-Sr-01683	1460	1360				190726	Loma Verde Mine, Rincon District, Rincon Mts, Saguaro National Monument West, Pima Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06644	156	146				58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06645	156	146				58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06646	156	146				58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06647	156	146				58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-U-Th-Pb-01543_206_238	172.5	172.5	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01543_207_206	357.2	303.2	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01543_207_235	183.7	183.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01544_206_238	173.8	173.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01544_207_206	308.6	244.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01544_207_235	181.1	181.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01545_206_238	160.4	160.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01545_207_206	268.8	198.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01545_207_235	165.1	165.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01546_206_238	138.3	138.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01546_207_206	256.6	180.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01546_207_235	142.8	142.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01547_207_206	240.2	184.2	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01548_206_238	151.1	151.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01548_207_206	280	224	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01548_207_235	157.3	157.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01549_206_238	178.7	178.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01549_207_206	245.2	189.2	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01549_207_235	181.4	181.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01550_206_238	178.2	178.2	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01550_207_206	215.1	191.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01550_207_235	180	180	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01551_206_238	179.3	179.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01551_207_206	223.1	193.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01551_207_235	181.4	181.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01552_206_238	179.2	179.2	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01552_207_206	240	184	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01552_207_235	181.6	181.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01553_206_238	186	186	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01553_207_206	256.6	230.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01553_207_235	190.3	190.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01554_206_238	180.7	180.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01554_207_206	232.8	196.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01554_207_235	183.1	183.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01555_206_238	188.3	188.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01555_207_206	193.7	185.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01555_207_235	188.4	188.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01556_206_238	187.3	187.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01556_207_206	198.5	188.5	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01556_207_235	187.7	187.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01557_206_238	195.3	195.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01557_207_206	242.7	228.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01557_207_235	198.4	198.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01558_206_238	194.1	194.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01558_207_206	238	226	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01558_207_235	197	197	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01559_206_238	194.4	194.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01559_207_206	239.6	227.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01559_207_235	197.5	197.5	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01560_206_238	185.3	185.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01560_207_206	420.4	380.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01560_207_235	201.9	201.9	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01561_206_238	199.5	199.5	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01561_207_206	215.1	205.1	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01561_207_235	200.4	200.4	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01562_206_238	205.9	205.9	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01562_207_206	283.3	269.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01562_207_235	211.6	211.6	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01563_206_238	133.7	133.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01563_207_206	336.3	324.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01563_207_235	144.8	144.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01564_206_238	135.7	135.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01564_207_206	356.8	332.8	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01564_207_235	147.7	147.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01565_206_238	128.3	128.3	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01565_207_206	289.5	279.5	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01565_207_235	136.7	136.7	Zircon			58584	Florida Mine, Robinson Property (Robinson Group), Stone Cabin Canyon, Old Baldy District, Santa Rita Mts, Pima Co., Arizona, USA	USGS-U-Th-Pb	USGS-U-Th-Pb