Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Minnesota, USA

Oldest recorded age at locality: 3936.66
Youngest recorded age at locality: 256.47

mindat Locality ID: 16817
mindat URL: http://www.mindat.org/loc-16817.html

Tectonic Settings:

Total number of sublocalities beneath "Minnesota, USA": 1249
Total number of bottom-level sublocalities: 1137

Number of Child Localities: 61
Child Localities:
Aitkin Co.
Anoka Co.
Becker Co.
Beltrami Co.
Benton Co.
Big Stone Co.
Blue Earth Co.
Brown Co.
Carlton Co.
Carver Co.
Cass Co.
Chippewa Co.
Chisago Co.
Clay Co.
Clearwater Co.
Cook Co.
Cottonwood Co.
Crow Wing Co.
Dakota Co.
Dodge Co.
Douglas Co.
Duluth Gabbro
Faribault Co.
Fillmore Co.
Freeborn Co.
Goodhue Co.
Hennepin Co.
Houston Co.
Itasca Co.
Kanabec Co.
Koochiching Co.
Lac Qui Parle Co.
Lake Co.
Lake Of The Woods Co.
Le Sueur Co.
Mille Lacs Co.
Morrison Co.
Mower Co.
Nicollet Co.
North Shore Of Lake Superior
Olmsted Co.
Pine Co.
Pipestone Co.
Polk Co.
Redwood Co.
Renville Co.
Rice Co.
Rock Co.
Roseau Co.
Scott Co.
Sibley Co.
St. Louis Co.
Stearns Co.
Steele Co.
Swift Co.
Wabasha Co.
Wadena Co.
Washington Co.
Wilkin Co.
Winona Co.
Yellow Medicine Co.

Latitude: 45°29'20"N
Longitude: 93°55'46"W
Decimal Degree (lat, lon): 45.488888888889,-93.929444444444

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au B Ba Bi C Ca Cl Co Cr Cu F Fe H K Mg Mn Na Ni O P Pb Pd Pt S Sb Si Sn Te Ti U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmorphousAmphiboleAnalcimeApatiteAragoniteArsenicArsenopyriteAtacamiteAxinite
BaddeleyiteBaryteBerylCalciteChalcopyriteChloriteClayClinozoisiteCobaltiteCopper
CoronaditeCorundumCovelliteCubaniteDiasporeDigeniteEpidoteFeldsparFluoriteGadolinite
GarnetIronIsomertieiteKaoliniteLöllingiteMalachiteMarcasiteMicaMilleriteNatrolite
NickelineNoneNot in a structural groupOlivinePentlanditePrehnitePyritePyroxeneQuartzRamsdellite
RhodoniteRocksaltRutileSepioliteSerpentineSmectite-vermiculiteSphaleriteSpinelStauroliteStilpnomelane
TalcTetradymiteThomsoniteTitaniteValleriiteVivianiteWurtziteZircon

137 IMA Minerals at location:
Actinolite  (*)Aegirine  (*)Akaganeite  (*)Albite  (*)Altaite  (*)
Analcime  (*)Andradite  (*)Ankerite  (*)Anorthite  (*)Aragonite  (*)
Arsenopyrite  (*)Augite  (*)Axinite-(Mn)  (*)Azurite  (*)Baddeleyite  (*)
Baryte  (*)Bismuth  (*)Bobierrite  (*)Bornite  (*)Braggite  (*)
Cabriite  (*)Calcite  (*)Cerussite  (*)Chalcocite  (*)Chalcopyrite  (*)
Chamosite  (*)Chromite  (*)Chrysocolla  (*)Chrysotile  (*)Cobaltite  (*)
Copper  (*)Cordierite  (*)Covellite  (*)Cryptomelane  (*)Cubanite  (*)
Cummingtonite  (*)Datolite  (*)Digenite  (*)Diopside  (*)Dolomite  (*)
Enstatite  (*)Epidote  (*)Fayalite  (*)Ferro-actinolite  (*)Fluorapatite  (*)
Fluorite  (*)Forsterite  (*)Froodite  (*)Galena  (*)Gibbsite  (*)
Godlevskite  (*)Goethite  (*)Gold  (*)Graphite  (*)Greenalite  (*)
Groutite  (*)Grunerite  (*)Haycockite  (*)Heazlewoodite  (*)Hedenbergite  (*)
Hematite  (*)Hibbingite  (*)Hisingerite  (*)Ilmenite  (*)Iron  (*)
Isocubanite  (*)Isomertieite  (*)Kaolinite  (*)Kinoite  (*)Kutnohorite  (*)
Laumontite  (*)Lizardite  (*)Löllingite  (*)Mackinawite  (*)Magnesio-riebeckite  (*)
Magnetite  (*)Malachite  (*)Manganite  (*)Marcasite  (*)Maucherite  (*)
Mesolite  (*)Miargyrite  (*)Microcline  (*)Millerite  (*)Minnesotaite  (*)
Montmorillonite  (*)Mooihoekite  (*)Muscovite  (*)Natrolite  (*)Nickeline  (*)
Nontronite  (*)Opal  (*)Orthoclase  (*)Gersdorffite-Pa3  (*)Pentlandite  (*)
Phlogopite  (*)Pigeonite  (*)Prehnite  (*)Pyrite  (*)Pyrolusite  (*)
Pyrrhotite  (*)Quartz  (*)Rammelsbergite  (*)Ramsdellite  (*)Rhodochrosite  (*)
Rhodonite  (*)Riebeckite  (*)Romarchite  (*)Rutile  (*)Safflorite  (*)
Saponite  (*)Scolecite  (*)Sepiolite  (*)Siderite  (*)Silver  (*)
Sperrylite  (*)Sphalerite  (*)Spinel  (*)Staurolite  (*)Stibiopalladinite  (*)
Stilpnomelane  (*)Stistaite  (*)Taenite  (*)Talc  (*)Talnakhite  (*)
Tetradymite  (*)Thomsonite-Ca  (*)Titanite  (*)Troilite  (*)Uraninite  (*)
Uranophane-α  (*)Valleriite  (*)Vincentite  (*)Violarite  (*)Xonotlite  (*)
Yarrowite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)23595.7311008222936,223523,223536,223623,223657,223690,224046,2240733419
Aegirine  (*)PyroxeneNaFe3+Si2O63222917,223065,2231251022
Akaganeite  (*)Coronadite(Fe3+,Ni2+)8(OH,O)16Cl1.25·nH2O1099.71098.3122366363
Albite  (*)FeldsparNa(AlSi3O8)1811.61811.66223065,223523,223534,223536,223616,2240468803
Altaite  (*)RocksaltPbTe1223654489
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O12236661627
Andradite  (*)GarnetCa3Fe3+2(SiO4)312236901534
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)218223179,223459,223467,223512,223660,223789,223803,223876,223890,223894,223934,223942,223948,223963,224000,224036,224042,2240573092
Anorthite  (*)FeldsparCa(Al2Si2O8)2223536,2236511036
Aragonite  (*)AragoniteCa(CO3)2223117,2231503250
Arsenopyrite  (*)ArsenopyriteFeAsS2223065,2230929052
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6110011009222989,223029,223521,223523,223528,223536,223655,223657,2240822060
Axinite-(Mn)  (*)AxiniteCa4Mn2+2Al4[B2Si8O30](OH)2122369088
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)212240615509
Baddeleyite  (*)BaddeleyiteZrO21223657238
Baryte  (*)BaryteBa(SO4)1811.61811.62223068,22315611547
Bismuth  (*)ArsenicBi1100110012240811966
Bobierrite  (*)VivianiteMg3(PO4)2·8H2O122360917
Bornite  (*)NoneCu5FeS41100110012223006,223007,223523,223533,223534,223536,223654,223655,223657,224074,224082,2240835516
Braggite  (*)NonePdPt3S41223523101
Cabriite  (*)NonePd2CuSn122365712
Calcite  (*)CalciteCa(CO3)45222960,222995,223027,223031,223107,223113,223125,223179,223242,223333,223334,223459,223467,223525,223536,223538,223539,223540,223546,223548,223607,223620,223643,223649,223650,223657,223666,223690,223789,223803,223849,223876,223890,223894,223934,223942,223948,223963,224000,224036,224042,224086,224114,224115,22413027770
Cerussite  (*)AragonitePb(CO3)12233344979
Chalcocite  (*)NoneCu2S2732.93256.475222989,222996,223534,223654,2236575707
Chalcopyrite  (*)ChalcopyriteCuFeS21100110027222960,222989,222996,223006,223007,223009,223012,223092,223198,223514,223523,223528,223533,223534,223536,223607,223654,223655,223657,223660,223691,224061,224063,224074,224081,224082,22408327198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)82223179,223650577
Chromite  (*)SpinelFe2+Cr2O42223613,2236543902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12236663531
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)42223536,223657951
Cobaltite  (*)CobaltiteCoAsS110011002223655,224082966
Copper  (*)CopperCu9222989,223031,223198,223601,223603,223613,223654,223666,2240613846
Cordierite  (*)BerylMg2Al4Si5O181100110012240811008
Covellite  (*)CovelliteCuS110011003223534,223657,2240824165
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O163223092,223108,223179599
Cubanite  (*)Cubanite WurtziteCuFe2S31100110011223029,223198,223533,223534,223536,223654,223655,223657,223691,224082,224083802
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)21223690327
Datolite  (*)GadoliniteCaB(SiO4)(OH)2732.93256.471222996498
Digenite  (*)DigeniteCu1.8S110011005223523,223534,223536,223654,2240821027
Diopside  (*)PyroxeneCaMgSi2O61811.61811.63223012,223065,2236904135
Dolomite  (*)NoneCaMg(CO3)210222960,222975,223242,223334,223607,224061,224065,224114,224115,2241309895
Enstatite  (*)PyroxeneMg2Si2O62223125,223536944
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)3595.732091.110222936,222989,223090,223523,223536,223623,223650,223657,223849,2240858173
Fayalite  (*)OlivineFe2+2(SiO4)1223690371
Ferro-actinolite  (*)Amphibole   Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)21223690129
Fluorapatite  (*)ApatiteCa5(PO4)3F12229602740
Fluorite  (*)FluoriteCaF22732.93256.473223008,223649,2236669617
Forsterite  (*)OlivineMg2(SiO4)1100110012240731188
Froodite  (*)NonePdBi22223655,22365762
Galena  (*)RocksaltPbS1811.6110016222975,223156,223242,223292,223334,223523,223534,223592,223654,223655,224067,224081,224114,224115,224132,22414124243
Gibbsite  (*)NoneAl(OH)33327.61563.52222958,223617504
Godlevskite  (*)Pentlandite(Ni,Fe)9S8122365740
Goethite  (*)DiasporeFeO(OH)1099.71098.326223065,223082,223101,223107,223108,223109,223113,223119,223127,223140,223143,223150,223154,223179,223334,223386,223410,223414,223523,223663,223696,223753,223756,223800,224025,2241307437
Gold  (*)CopperAu3602.37256.4723222936,223008,223011,223036,223202,223510,223512,223513,223514,223515,223581,223616,223633,223652,223654,223660,224046,224048,224049,224057,224063,224065,22415130554
Graphite  (*)NoneC1100110012222960,222968,222975,223003,223028,223536,223607,223657,223690,224065,224081,2240822812
Greenalite  (*)Clay Serpentine(Fe2+,Fe3+)2-3Si2O5(OH)44222959,223643,223657,22369561
Groutite  (*)DiasporeMn3+O(OH)1811.61811.65223107,223109,223156,223158,22317872
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)25223126,223143,223150,223690,223849223
Haycockite  (*)ChalcopyriteCu4Fe5S82223198,22365412
Heazlewoodite  (*)NoneNi3S22223654,223657205
Hedenbergite  (*)PyroxeneCaFe2+Si2O61223690741
Hematite  (*)CorundumFe2O32475.261811.6538222918,222919,222960,222964,222985,223039,223065,223066,223067,223068,223069,223070,223071,223073,223074,223075,223076,223077,223078,223079,223080,223082,223083,223085,223086,223087,223088,223089,223090,223091,223092,223093,223096,223097,223098,223099,223100,223101,223103,223104,223105,223107,223108,223110,223111,223112,223113,223114,223115,223116,223117,223119,223120,223121,223122,223123,223124,223125,223126,223127,223128,223129,223130,223131,223132,223133,223134,223135,223137,223138,223139,223140,223141,223142,223143,223150,223151,223152,223153,223154,223156,223157,223158,223159,223160,223164,223166,223167,223169,223170,223171,223172,223173,223174,223175,223176,223178,223179,223180,223355,223356,223357,223358,223359,223360,223361,223362,223363,223364,223365,223366,223367,223368,223369,223374,223375,223376,223379,223380,223381,223382,223383,223384,223385,223386,223387,223388,223389,223390,223391,223392,223393,223394,223395,223396,223397,223399,223400,223401,223402,223403,223404,223405,223407,223408,223409,223410,223411,223412,223413,223414,223415,223416,223417,223418,223419,223420,223422,223423,223424,223425,223426,223427,223428,223429,223430,223431,223432,223433,223434,223435,223436,223437,223438,223439,223442,223443,223444,223445,223446,223447,223448,223451,223452,223453,223454,223455,223456,223457,223458,223460,223461,223462,223463,223464,223465,223466,223468,223469,223470,223471,223472,223473,223474,223475,223476,223477,223478,223479,223480,223482,223483,223484,223485,223486,223487,223488,223489,223490,223491,223492,223493,223494,223495,223496,223497,223498,223499,223501,223502,223503,223512,223513,223523,223551,223568,223607,223671,223672,223673,223674,223675,223676,223677,223678,223679,223680,223681,223682,223683,223684,223685,223686,223687,223688,223690,223692,223693,223694,223696,223698,223699,223700,223701,223702,223703,223704,223705,223706,223707,223708,223709,223710,223711,223713,223715,223716,223717,223718,223719,223720,223721,223723,223724,223726,223727,223728,223729,223730,223731,223732,223733,223734,223735,223736,223737,223738,223739,223740,223742,223743,223745,223747,223748,223749,223750,223752,223753,223754,223755,223756,223765,223766,223767,223768,223769,223770,223771,223772,223773,223774,223775,223776,223777,223779,223780,223781,223782,223783,223784,223785,223786,223788,223790,223792,223793,223794,223795,223796,223797,223798,223801,223802,223804,223805,223806,223807,223808,223809,223810,223812,223813,223814,223815,223816,223817,223818,223819,223820,223821,223822,223823,223824,223825,223826,223827,223828,223829,223831,223832,223833,223837,223838,223839,223841,223842,223843,223844,223845,223846,223847,223848,223851,223852,223863,223865,223868,223870,223871,223872,223873,223874,223875,223878,223879,223880,223882,223883,223886,223887,223888,223889,223890,223895,223897,223898,223899,223900,223901,223902,223903,223904,223905,223906,223907,223908,223909,223910,223912,223913,223915,223916,223917,223918,223919,223920,223921,223922,223923,223924,223925,223926,223927,223928,223929,223930,223931,223932,223933,223935,223936,223937,223939,223940,223941,223944,223945,223949,223950,223951,223952,223953,223954,223956,223957,223958,223959,223960,223961,223962,223964,223965,223966,223967,223969,223970,223971,223972,223973,223975,223977,223978,223979,223980,223981,223982,223983,223984,223985,223986,223987,223991,223992,223993,223994,223995,223996,223998,223999,224002,224003,224004,224006,224007,224008,224009,224010,224011,224012,224013,224014,224015,224017,224018,224019,224020,224021,224022,224023,224024,224025,224026,224027,224029,224030,224031,224032,224033,224034,224035,224037,224038,224039,224040,224043,224044,224048,224049,224051,224052,224053,224054,224055,224056,224058,224059,224061,22406214640
Hibbingite  (*)AtacamiteFe2+2(OH)3Cl1099.71098.3122366313
Hisingerite  (*)Kaolinite ClayFe2Si2O5(OH)4·2H2O2223178,223670144
Ilmenite  (*)CorundumFe2+Ti4+O31100110025223015,223016,223017,223018,223024,223028,223034,223534,223536,223543,223544,223620,223654,223657,223691,224069,224070,224071,224072,224073,224075,224076,224077,224078,2240805433
Iron  (*)IronFe4222925,222937,223613,2236421089
Isocubanite  (*)Sphalerite CubaniteCuFe2S31223613191
Isomertieite  (*)IsomertieitePd11Sb2As2122352348
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)43327.61563.55222958,223179,223190,223614,2236175591
Kinoite  (*)NoneCa2Cu2Si3O10·2H2O122366617
Kutnohorite  (*)NoneCaMn2+(CO3)23223127,223150,224086234
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O5223525,223539,223540,223548,2236661271
Lizardite  (*)Serpentine ClayMg3Si2O5(OH)41223580359
Löllingite  (*)LöllingiteFeAs2110011001224082762
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)4223536,223654,223655,223657451
Magnesio-riebeckite  (*)Amphibole   Na2(Mg3Fe3+2)Si8O22(OH)2122312593
Magnetite  (*)SpinelFe2+Fe3+2O41811.61098.3568222918,222919,222959,222964,222985,223015,223016,223017,223018,223024,223028,223029,223034,223065,223066,223067,223068,223070,223071,223073,223074,223075,223076,223077,223078,223079,223080,223082,223083,223085,223086,223087,223088,223089,223090,223091,223092,223093,223097,223098,223100,223101,223103,223106,223107,223108,223109,223110,223111,223112,223114,223115,223116,223117,223119,223120,223121,223122,223123,223124,223125,223126,223127,223128,223129,223130,223131,223132,223133,223134,223135,223137,223138,223139,223140,223141,223142,223143,223152,223153,223154,223156,223157,223158,223159,223160,223164,223166,223167,223169,223170,223171,223172,223173,223174,223175,223176,223178,223179,223180,223198,223355,223356,223357,223358,223359,223360,223361,223362,223363,223364,223365,223366,223367,223368,223369,223374,223375,223376,223379,223380,223381,223382,223383,223384,223385,223386,223387,223388,223389,223390,223391,223392,223393,223394,223395,223396,223397,223399,223400,223401,223402,223404,223405,223407,223408,223409,223410,223411,223412,223413,223414,223415,223416,223417,223418,223419,223420,223422,223423,223424,223425,223426,223427,223428,223429,223430,223431,223432,223433,223434,223435,223436,223437,223438,223439,223442,223443,223444,223445,223446,223447,223448,223451,223452,223453,223454,223455,223456,223457,223458,223459,223460,223461,223462,223463,223464,223465,223466,223467,223468,223469,223470,223471,223472,223473,223474,223475,223476,223477,223478,223479,223480,223482,223483,223484,223485,223486,223487,223488,223489,223490,223491,223492,223493,223494,223495,223496,223497,223498,223499,223501,223502,223503,223523,223528,223534,223536,223543,223544,223551,223568,223620,223654,223657,223663,223671,223672,223673,223674,223675,223676,223677,223678,223679,223680,223681,223682,223683,223684,223685,223686,223687,223688,223690,223691,223692,223693,223694,223696,223698,223699,223700,223701,223702,223703,223704,223705,223706,223707,223708,223709,223710,223711,223713,223715,223716,223717,223718,223719,223720,223721,223723,223724,223726,223727,223728,223729,223730,223731,223732,223733,223734,223735,223736,223737,223738,223739,223740,223741,223742,223743,223745,223747,223748,223749,223750,223752,223753,223754,223755,223756,223765,223766,223767,223768,223769,223770,223771,223772,223773,223774,223775,223776,223777,223779,223780,223781,223782,223783,223784,223785,223786,223788,223789,223790,223792,223793,223794,223795,223796,223797,223798,223801,223802,223803,223804,223805,223806,223807,223808,223809,223810,223812,223813,223814,223815,223816,223817,223818,223819,223820,223821,223822,223823,223824,223825,223826,223827,223828,223829,223831,223832,223833,223837,223838,223839,223841,223842,223843,223844,223845,223846,223847,223848,223849,223851,223852,223863,223865,223868,223870,223871,223872,223873,223874,223875,223876,223878,223879,223880,223882,223883,223886,223887,223888,223889,223890,223894,223895,223897,223898,223899,223900,223901,223902,223903,223904,223905,223906,223907,223908,223909,223910,223912,223913,223915,223916,223917,223918,223919,223920,223921,223922,223923,223924,223925,223926,223927,223928,223929,223930,223931,223932,223933,223934,223935,223936,223937,223939,223940,223941,223942,223944,223945,223948,223949,223950,223951,223952,223953,223954,223956,223957,223958,223959,223960,223961,223962,223963,223964,223965,223966,223967,223969,223970,223971,223972,223973,223975,223977,223978,223979,223980,223981,223982,223983,223984,223985,223986,223987,223991,223992,223993,223994,223995,223996,223998,224000,224002,224003,224004,224006,224007,224008,224009,224010,224011,224012,224013,224014,224015,224017,224018,224019,224020,224021,224022,224023,224024,224025,224026,224027,224029,224030,224031,224032,224033,224034,224035,224036,224037,224038,224039,224040,224042,224043,224044,224051,224052,224053,224054,224055,224056,224058,224059,224061,224062,224069,224070,224071,224072,224073,224075,224076,224077,224078,22408014899
Malachite  (*)MalachiteCu2(CO3)(OH)23223601,223666,22406112537
Manganite  (*)RutileMn3+O(OH)1811.61811.64223092,223156,223178,223179770
Marcasite  (*)MarcasiteFeS2110011005222959,223334,223643,224081,2241305674
Maucherite  (*)NoneNi11As8110011003223655,223657,224082161
Mesolite  (*)NatroliteNa2Ca2(Si9Al6)O30·8H2O1223039425
Miargyrite  (*)NoneAgSbS21222975300
Microcline  (*)FeldsparK(AlSi3O8)1811.61811.612230654924
Millerite  (*)MilleriteNiS3223534,223654,2236551066
Minnesotaite  (*)Clay TalcFe2+3Si4O10(OH)21811.61811.623222959,223065,223068,223156,223179,223459,223467,223670,223688,223741,223789,223803,223849,223876,223894,223934,223942,223948,223963,223999,224000,224036,22404261
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O3327.61563.52222958,2236171508
Mooihoekite  (*)ChalcopyriteCu9Fe9S162223198,22365420
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)23595.73110018222958,222960,222968,223092,223105,223179,223512,223513,223523,223534,223571,223617,223623,224048,224049,224066,224082,22408517380
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O12236661236
Nickeline  (*)NickelineNiAs110011005223534,223655,223657,224081,224082633
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O1811.61811.61223065471
Opal  (*)AmorphousSiO2·nH2O12241192994
Orthoclase  (*)FeldsparK(AlSi3O8)2222968,2229752349
Gersdorffite-Pa3  (*)PyriteNiAsS110011002223655,224082767
Pentlandite  (*)Pentlandite(Ni,Fe)9S81100110013223028,223029,223198,223533,223534,223536,223654,223655,223657,223691,224081,224082,2240831512
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)212236202273
Pigeonite  (*)Pyroxene(Mg,Fe,Ca)2Si2O63223028,223521,223536303
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)22732.93256.4710222996,223520,223523,223534,223536,223540,223548,223657,223666,2240821898
Pyrite  (*)PyriteFeS22475.26110037222936,222959,222960,222968,222996,223009,223011,223028,223036,223065,223092,223109,223150,223399,223435,223510,223512,223513,223514,223515,223523,223534,223536,223607,223655,223660,223690,224046,224048,224049,224057,224061,224063,224064,224081,224132,22414139462
Pyrolusite  (*)RutileMnO25223090,223092,223108,223115,2231793106
Pyrrhotite  (*)NickelineFe7S81100110021222960,223006,223007,223012,223092,223198,223510,223523,223533,223534,223536,223654,223655,223657,223690,223691,224063,224074,224081,224082,2240839056
Quartz  (*)QuartzSiO23595.73256.4781222942,222959,222960,222968,222987,222989,222996,223000,223008,223011,223031,223036,223038,223042,223065,223068,223069,223070,223092,223104,223108,223119,223125,223127,223143,223150,223154,223156,223178,223179,223199,223299,223330,223334,223410,223435,223512,223513,223514,223515,223523,223536,223537,223538,223545,223546,223547,223548,223549,223566,223571,223581,223604,223616,223617,223620,223623,223643,223648,223650,223652,223660,223666,223690,223695,223872,223999,224046,224048,224049,224061,224063,224066,224067,224085,224091,224092,224104,224105,224127,22413061156
Rammelsbergite  (*)LöllingiteNiAs2110011001224082233
Ramsdellite  (*)RamsdelliteMnO2122389888
Rhodochrosite  (*)CalciteMn(CO3)7222995,223065,223117,223125,223825,223879,2240861711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)1223125969
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)21223690375
Romarchite  (*)NoneSnO122319813
Rutile  (*)RutileTiO212236605614
Safflorite  (*)LöllingiteCoAs2110011001224082317
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O1223545301
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O1223031390
Sepiolite  (*)Sepiolite ClayMg4Si6O15(OH)2·6H2O1223690241
Siderite  (*)CalciteFe(CO3)1811.61811.630222960,223065,223068,223069,223070,223101,223113,223117,223125,223143,223150,223156,223166,223179,223386,223410,223459,223467,223789,223803,223876,223890,223894,223934,223942,223948,223963,224000,224036,2240426417
Silver  (*)CopperAg110011004223011,223654,223657,2240815186
Sperrylite  (*)PyritePtAs2110011004223523,223534,223657,224082337
Sphalerite  (*)SphaleriteZnS110011009222960,223012,223534,223536,223654,223655,223657,224066,22408121482
Spinel  (*)SpinelMgAl2O44223536,223620,223654,2236571934
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)1223571978
Stibiopalladinite  (*)NonePd5Sb211001100122408275
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O1811.61811.615223065,223068,223069,223070,223092,223104,223125,223143,223150,223156,223179,223523,223534,223890,223999456
Stistaite  (*)RocksaltSnSb122352311
Taenite  (*)None(Ni,Fe)1223613703
Talc  (*)Clay TalcMg3Si4O10(OH)22223523,2236073337
Talnakhite  (*)ChalcopyriteCu9Fe8S165223533,223534,223654,223655,22365735
Tetradymite  (*)TetradymiteBi2Te2S110011001224081510
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O3222996,223001,223538452
Titanite  (*)TitaniteCaTi(SiO4)O3595.732091.12223623,2240854899
Troilite  (*)NoneFeS5223198,223536,223613,223654,2236571044
Uraninite  (*)FluoriteUO21100110012240682718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O110011001224068890
Valleriite  (*)Valleriite2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)2]1223655237
Vincentite  (*)NonePd3As122352317
Violarite  (*)SpinelFeNi2S42223028,223655380
Xonotlite  (*)NoneCa6Si6O17(OH)21223012109
Yarrowite  (*)NoneCu9S811001100122408270
Zircon  (*)ZirconZr(SiO4)3251.925352223623,2236575251



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_701Ni-Cu sulfides in intrusions related to flood basalts


253 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
USGS-Rb-Sr-010142613.662613.662613.66Rb-Srage of intrusionwhole rock     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010152564.722564.722564.72Rb-Srminimum age of intrusionwhole rock     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010162564.722564.722564.72Rb-Srminimum age of intrusionsericite     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010172564.722564.722564.72Rb-Srminimum age of intrusionsericite     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010182732.932732.932732.93Rb-Srminimum age of intrusionsericite     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010192598.352598.352598.35Rb-Srage not evaluatedmicrocline   Microcline  167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010202722.582722.582722.58Rb-Srminimum age of intrusionmicrocline   Microcline  167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-01021256.47256.47256.47Rb-Srminimum age of intrusionsericite     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-010222564.722564.722564.72Rb-Srminimum age of intrusionmicrocline   Microcline  167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-01334271324632588±125Rb-Srage of intrusionsericite     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-013352702.652452.652577.65±125Rb-Srage of intrusionk-feldspar     167127Lake Saganaga-Gold Island Prospect, Cook Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-013601811.61811.61811.6Rb-Srage of metamorphic crystallizationwhole rock     20141Sagamore Mine (Syracuse Property), Riverton, Cuyuna North Range, Crow Wing Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-013372475.262245.262360.26±115Rb-Srinitial age disturbed by later metamorphismbiotite     166992Grassy Island Prospect, Rainy Lake, Koochiching Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00178_206_2381995.51935.51965.5±30206_238 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00178_207_2062458.82434.82446.8±12207_206 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00178_207_2352246.92174.92210.9±36207_235 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00179_206_2381576.61530.61553.6±23206_238 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00179_207_2062460.72436.72448.7±12207_206 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00179_207_235200619421974±32207_235 zircon   Zircon  166722Birch Lake Area Prospect, Ely-Hoyt Lakes Area, Lake Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-Rb-Sr-01338258825882588Rb-Srage of intrusionmuscovite   Muscovite  167312NW Angle Feldspar Mine, Lake Of The Woods Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014382738.872468.872603.87±135Rb-Srage of intrusionmuscovite   Muscovite  167312NW Angle Feldspar Mine, Lake Of The Woods Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00140_206_2381563.51563.51563.5206_238initial age disturbed by weatheringzircon   Zircon  167266Morton Pit (Ochs Clay-Redwood Pit), Redwood Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00140_207_2063327.63327.63327.6207_206initial age disturbed by weatheringzircon   Zircon  167266Morton Pit (Ochs Clay-Redwood Pit), Redwood Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00140_207_2352467.52467.52467.5207_235initial age disturbed by weatheringzircon   Zircon  167266Morton Pit (Ochs Clay-Redwood Pit), Redwood Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-Rb-Sr-007962643.032643.032643.03Rb-Srage of intrusionwhole rock     167581View Quarry, Redwood Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-013522661.242411.242536.24±125Rb-Srminimum age of intrusionbiotite     167581View Quarry, Redwood Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007872496.22496.22496.2Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007882457.042457.042457.04Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007892650.112650.112650.11Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007902496.22496.22496.2Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007912447.252447.252447.25Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007922660.462660.462660.46Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007932496.22496.22496.2Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007942408.092408.092408.09Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-007952577.652577.652577.65Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008202985.652985.652985.65Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008212966.072966.072966.07Rb-Srage of metamorphic crystallizationwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008262985.652985.652985.65Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008272496.22496.22496.2Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008282639.762639.762639.76Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008292639.762639.762639.76Rb-Srinitial age disturbed by later metamorphismplagioclase     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008302091.12091.12091.1Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008312594.082594.082594.08Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008322594.082594.082594.08Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismplagioclase     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008332536.242536.242536.24Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008343343.73343.73343.7Rb-Srage of metamorphic crystallizationwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008352985.652985.652985.65Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008362711.552711.552711.55Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008532985.652985.652985.65Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008543328.263328.263328.26Rb-Srage of metamorphic crystallizationwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008552985.652985.652985.65Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008562701.762701.762701.76Rb-Srinitial age disturbed by later metamorphismwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008572639.762639.762639.76Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-008582318.852318.852318.85Rb-Srinitial age disturbed by later metamorphismk-feldspar     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-013492635.542395.542515.54±120Rb-Srage of later metamorphismbiotite     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014573595.733295.733445.73±150Rb-Srage of metamorphic crystallizationwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014583595.733295.733445.73±150Rb-Srage of metamorphic crystallizationwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04520302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04521301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045223121.022821.022971.02±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045233148.562648.562898.56±250Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045243101.12551.12826.1±275Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04525302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04526301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045273121.022821.022971.02±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045283148.562648.562898.56±250Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045293101.12551.12826.1±275Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04530302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04531301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045323121.022821.022971.02±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045333148.562648.562898.56±250Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045343101.12551.12826.1±275Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04535302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04536301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045373121.022821.022971.02±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045383148.562648.562898.56±250Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-045393101.12551.12826.1±275Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04540300524552730±275Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04541319527052950±245Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04542319527052950±245Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04543302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04544301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04546319527052950±245Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04547302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04548301527252870±145Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04549302027202870±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04550302527752900±125Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04552302027202870±150Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04553305025502800±250Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04563358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04564324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04565358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04566324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04567358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04568324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04569358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04570324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04572358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04573324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04575358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04576324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04577358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04578324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04579358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04580324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04581358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04582324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04583358533653475±110Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04584324525952920±325Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04602265526552655Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04603273527352735Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04604275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04605275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04606275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04607275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04608275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04609275525252640±115Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0461026702670267Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0461126702670267Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0461226702670267Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04613261025002555±55Rb-Srminimum age of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04614263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04615261025002555±55Rb-Srminimum age of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04616263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04633263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04634263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0463524202420242Rb-Sr whole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04636263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04637263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04638263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04639263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04640263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04641263025502590±40Rb-Srage of intrusionwhole rock     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-052142515.542515.542515.54Rb-Srminimum age of metamorphic crystallizationbiotite     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00086_206_2383117.13117.13117.1206_238initial age disturbed by later metamorphismallanite     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00086_207_2062497.22497.22497.2207_206initial age disturbed by later metamorphismallanite     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00086_207_2352753.72753.72753.7207_235initial age disturbed by later metamorphismallanite     10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00090_206_2382561.22561.22561.2206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00090_207_206303230323032207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00090_207_2352832.72832.72832.7207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00098_206_2382675.32675.32675.3206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00098_207_2063169.43169.43169.4207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00098_207_2352965.92965.92965.9207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00141_206_2382675.72565.72620.7±55206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00141_207_2063113.72993.73053.7±60207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00141_207_2352932.22812.22872.2±60207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00142_206_2382854.42744.42799.4±55206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00142_207_2063251.93121.93186.9±65207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00142_207_2353090.12970.13030.1±60207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00771_206_238255025502550206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00771_207_206305530553055207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00771_207_235284028402840207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00772_206_238256525652565206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00772_207_206303530353035207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00772_207_235283528352835207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00773_206_238253525352535206_238 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00773_207_206302530253025207_206 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00773_207_235281528152815207_235 zircon   Zircon  10200Cold Spring Granite Quarry (Rainbow Quarry), Morton, Renville Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-Rb-Sr-013431214.421104.421159.42±55Rb-Srage of intrusionbiotite     167437Serpentine Deposit, Ely-Hoyt Lakes Area, St. Louis Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
Michelle_7011099.71098.31099±0.7 Age of deposit or general age of the metallogenic province     Ni, Cu30391Duluth Complex, Hibbing, St. Louis Co., Minnesota, USADuluthHoatson et al. (2006)10.1016/j.oregeorev.2006.05.002OGR29_177See Table. 1 Global resources of nickel metal and ages of the major nickel sulfide deposits of the world. Age can refer to the age of a specific nickel sulfide deposit, or the general age of the metallogenic province containing nickel deposits that are similar to a dated deposit (e.g. 2705 Ma Komatiite-hosted deposits in the Eastern Goldfields Province).
EG105_1057_010110011001100       Ni, Cu, Pt, Pd, Rh, Ir, Os, Ru167667Western Margin Duluth Complex, St. Louis Co., Minnesota, USADuluthBegg et al. (2010)10.2113/econgeo.105.6.1057EG105_1057 
USGS-Rb-Sr-014623602.373322.373462.37±140Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014631869.71869.71869.7Rb-Srage of later metamorphismquartz   Quartz  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014641977.231977.231977.23Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014651744.311744.311744.31Rb-Sr biotite     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014663602.373322.373462.37±140Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014671754.191754.191754.19Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014681845.761845.761845.76Rb-Sr biotite     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014691881.621801.621841.62±40Rb-Sr pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014701881.621801.621841.62±40Rb-Sr magnetite   Magnetite  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014711781.461701.461741.46±40Rb-Sr biotite     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014721781.461701.461741.46±40Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014731881.621801.621841.62±40Rb-Sr whole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014753602.373322.373462.37±140Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014761858.931858.931858.93Rb-Sr biotite     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014771869.571869.571869.57Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014783602.373322.373462.37±140Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014813602.373322.373462.37±140Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014823499.12987.13243.1±256Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014833499.12987.13243.1±256Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014843499.12987.13243.1±256Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014851742.441742.441742.44Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014861842.661842.661842.66Rb-Srage of metamorphic crystallizationbiotite     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014873499.12987.13243.1±256Rb-Srminimum age of metamorphic crystallizationwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014882825.452421.452623.45±202Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014892825.452421.452623.45±202Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014912494.832494.832494.83Rb-Sr hornblende, pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014922825.452421.452623.45±202Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014931745.381745.381745.38Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014941724.641724.641724.64Rb-Sr hornblende, pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014951732.921732.921732.92Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014961732.921732.921732.92Rb-Sr hornblende, pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014972825.452421.452623.45±202Rb-Srminimum age of metamorphic crystallization, initial age disturbed by later metamorphismwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014981791.391791.391791.39Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-014991977.231977.231977.23Rb-Sr hornblende, pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-015001976.21976.21976.2Rb-Sr plagioclase     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-015011976.21976.21976.2Rb-Sr hornblende, pyroxene     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0451625002500250Rb-Sr whole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0451725002500250Rb-Sr whole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0451825002500250Rb-Sr whole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-046482823.452423.452623.45±200Rb-Srage of intrusionwhole rock     166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00093_206_2382392.42392.42392.4206_238age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00093_207_2062601.22601.22601.2207_206age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00093_207_235250725072507207_235age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00094_206_2382387.42387.42387.4206_238age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00094_207_2062605.32605.32605.3207_206age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00094_207_235250725072507207_235age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00095_206_2382491.72491.72491.7206_238age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00095_207_2062590.42590.42590.4207_206age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00095_207_2352546.52546.52546.5207_235age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00096_206_2382551.22551.22551.2206_238age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00096_207_2062595.82595.82595.8207_206age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00096_207_2352576.12576.12576.1207_235age of metamorphic crystallizationzircon   Zircon  166989Granite Falls Prospect, Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-Rb-Sr-013551834.491664.491749.49±85Rb-Srinitial age disturbed by later metamorphismbiotite     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-015193719.823719.823719.82Rb-Srminimum age of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-015203936.663796.663866.66±70Rb-Srminimum age of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04472375036103680±70Rb-Srage of intrusionwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04473358534753530±55Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04474335526653010±345Rb-Srage of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04475358534753530±55Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04476265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04477375036103680±70Rb-Srage of intrusionwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04478358534753530±55Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-044793460.952770.953115.95±345Rb-Srage of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-044802404.732284.732344.73±60Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04482265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04483232522052265±60Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04485265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04486265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0448731003100310Rb-Srage of intrusionwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04488265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04489232522052265±60Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04490265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04491265524952575±80Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04492232522052265±60Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04493375036103680±70Rb-Srage of intrusionwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04494335526653010±345Rb-Srage of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-044953709.263599.263654.26±55Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04496375036103680±70Rb-Srage of intrusionwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04497335526653010±345Rb-Srage of metamorphic crystallizationwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-044983709.263599.263654.26±55Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-044992404.732284.732344.73±60Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0450028002800280Rb-Srage not evaluatedwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0450128002800280Rb-Srage not evaluatedwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0450228002800280Rb-Srage not evaluatedwhole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0451232503250325Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-0451332503250325Rb-Sr whole rock     167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00764_206_238269526952695206_238age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00764_207_206305030503050207_206age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00764_207_235290029002900207_235age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00765_206_238257525752575206_238age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00765_207_206305030503050207_206age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00765_207_235284928492849207_235age of intrusionzircon   Zircon  167001Green Quarry And Mill (Green Company), Yellow Medicine Co., Minnesota, USA USGS-U-Th-Pb USGS-U-Th-Pb 


SampleSource LocalityReference URL
R040053Turtle River Meteorite, Beltrami Co., Minnesota, USAhttps://rruff.info/R040053
R080004Robert Mine (Roberts Mine; Kennedy Mine), Cuyuna Range, Crow Wing Co., Minnesota, USAhttps://rruff.info/R080004
R060827Robert Mine (Roberts Mine; Kennedy Mine), Cuyuna Range, Crow Wing Co., Minnesota, USAhttps://rruff.info/R060827


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