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:
Iowa, USA

mindat Locality ID: 16288
mindat URL: http://www.mindat.org/loc-16288.html

Tectonic Settings:

Total number of sublocalities beneath "Iowa, USA": 398
Total number of bottom-level sublocalities: 283

Number of Child Localities: 99
Child Localities:
Adair Co.
Adams Co.
Allamakee Co.
Appanoose Co.
Audubon Co.
Benton Co.
Black Hawk Co.
Boone Co.
Bremer Co.
Buchanan Co.
Buena Vista Co.
Butler Co.
Calhoun Co.
Carroll Co.
Cass Co.
Cedar Co.
Cerro Gordo Co.
Cherokee Co.
Chickasaw Co.
Clarke Co.
Clay Co.
Clayton Co.
Clinton Co.
Crawford Co.
Dallas Co.
Davis Co.
Decatur Co.
Delaware Co.
Des Moines Co.
Dickinson Co.
Dubuque Co.
Emmet Co.
Fayette Co.
Floyd Co.
Franklin Co.
Fremont Co.
Greene Co.
Grundy Co.
Guthrie Co.
Hamilton Co.
Hancock Co.
Hardin Co.
Harrison Co.
Henry Co.
Howard Co.
Humboldt Co.
Ida Co.
Iowa Co.
Jackson Co.
Jasper Co.
Jefferson Co.
Johnson Co.
Jones Co.
Keokuk Co.
Kossuth Co.
Lee Co.
Linn Co.
Louisa Co.
Lucas Co.
Lyon Co.
Madison Co.
Mahaska Co.
Marion Co.
Marshall Co.
Mills Co.
Mitchell Co.
Monona Co.
Monroe Co.
Montgomery Co.
Muscatine Co.
O'Brien Co.
Osceola Co.
Page Co.
Palo Alto Co.
Plymouth Co.
Pocahontas Co.
Polk Co.
Pottawattamie Co.
Poweshiek Co.
Ringgold Co.
Sac Co.
Scott Co.
Shelby Co.
Sioux Co.
Story Co.
Tama Co.
Taylor Co.
Union Co.
Van Buren Co.
Wapello Co.
Warren Co.
Washington Co.
Wayne Co.
Webster Co.
Winnebago Co.
Winneshiek Co.
Woodbury Co.
Worth Co.
Wright Co.

Latitude: 41°59'36"N
Longitude: 92°33'55"W
Decimal Degree (lat, lon): 41.993333333333,-92.565277777778

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Alunite	Amphibole	Analcime	Apatite	Aragonite	Baryte	Brucite	Calcite	Cerite	Chalcopyrite
Clay	Clinozoisite	Copper	Corundum	Cubanite	Diamond	Diaspore	Epidote	Feldspar	Fluorite
Garnet	Gypsum	Hydrotalcite	Iron	Kaolinite	Malachite	Marcasite	Melanterite	Millerite	Molybdenite
None	Not in a structural group	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Serpentine	Smectite-vermiculite
Sphalerite	Spinel	Tridymite	Wollastonite	Wurtzite	Zircon

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: Al Au Ba C Ca Cl Cr Cu F Fe H K Mg Mn Mo Na Ni O P Pb S Si Sr Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amphibole Analcime Apatite Aragonite Baryte Brucite Calcite Cerite Chalcopyrite
Clay Clinozoisite Copper Corundum Cubanite Diamond Diaspore Epidote Feldspar Fluorite
Garnet Gypsum Hydrotalcite Iron Kaolinite Malachite Marcasite Melanterite Millerite Molybdenite
None Not in a structural group Prehnite Pyrite Pyroxene Quartz Rocksalt Rutile Serpentine Smectite-vermiculite
Sphalerite Spinel Tridymite Wollastonite Wurtzite Zircon

73 IMA Minerals at location:

Analcime ()*	Andradite ()*	Anglesite ()*	Anhydrite ()*	Ankerite ()*
Anorthite ()*	Aragonite ()*	Augite ()*	Azurite ()*	Baryte ()*
Brucite ()*	Calcite ()*	Celestine ()*	Cerussite ()*	Chalcocite ()*
Chalcopyrite ()*	Chromite ()*	Chrysotile ()*	Copper ()*	Diamond ()*
Dolomite ()*	Enstatite ()*	Epidote ()*	Felsőbányaite ()*	Ferro-actinolite ()*
Fluorapatite ()*	Fluorite ()*	Galena ()*	Gibbsite ()*	Goethite ()*
Gold ()*	Gypsum ()*	Hematite ()*	Hemimorphite ()*	Ilmenite ()*
Iowaite ()*	Iron ()*	Isocubanite ()*	Jarosite ()*	Kaolinite ()*
Mackinawite ()*	Magnesite ()*	Magnetite ()*	Malachite ()*	Marcasite ()*
Melanterite ()*	Merrillite ()*	Millerite ()*	Molybdenite ()*	Orthoclase ()*
Pigeonite ()*	Prehnite ()*	Pyrite ()*	Pyroaurite ()*	Pyrolusite ()*
Quartz ()*	Quenstedtite ()*	Rutile ()*	Sauconite ()*	Schreibersite ()*
Siderite ()*	Smithsonite ()*	Sphalerite ()*	Spinel ()*	Stanfieldite ()*
Taenite ()*	Tetrataenite ()*	Tridymite ()*	Troilite ()*	Whitlockite ()*
Wollastonite ()*	Wurtzite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	1	214973	1627
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	214973	1534
Anglesite ()*	Baryte	Pb(SO₄)	3	214647,214654,214766	2734
Anhydrite ()*	Not in a structural group	Ca(SO₄)	1	214751	1588
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	4	214749,214766,214877,214930	3092
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1	214794	1036
Aragonite ()*	Aragonite	Ca(CO₃)	7	214749,214758,214766,214878,215006,215007,215025	3250
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	214794	2060
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	1	214766	5509
Baryte ()*	Baryte	Ba(SO₄)	34	214649,214669,214670,214671,214672,214743,214749,214766,214795,214801,214858,214859,214860,214872,214878,214920,214922,214923,214924,214927,214930,214936,214942,214943,214945,214951,214953,214979,214986,214987,215006,215007,215016,215025	11547
Brucite ()*	Brucite	Mg(OH)₂	1	214992	462
Calcite ()*	Calcite	Ca(CO₃)	87	214643,214647,214649,214654,214665,214669,214670,214671,214676,214678,214679,214680,214684,214696,214704,214705,214708,214722,214749,214761,214762,214763,214764,214766,214772,214773,214776,214778,214783,214787,214789,214798,214806,214808,214815,214824,214825,214828,214834,214849,214858,214859,214860,214872,214874,214875,214877,214878,214879,214880,214881,214883,214885,214886,214889,214893,214894,214920,214922,214923,214924,214927,214930,214936,214940,214942,214943,214945,214951,214953,214960,214973,214979,214986,214987,214992,215002,215006,215007,215016,215019,215023,215024,215025,215026,215027,215032	27770
Celestine ()*	Baryte	Sr(SO₄)	6	214751,215023,215024,215025,215026,215027	1252
Cerussite ()*	Aragonite	Pb(CO₃)	4	214647,214654,214709,214766	4979
Chalcocite ()*	None	Cu₂S	4	214749,214878,215006,215007	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	14	214671,214749,214766,214858,214859,214860,214878,214930,214943,214945,214951,214987,215006,215007	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	4	214794,214840,214887,215029	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	214992	951
Copper ()*	Copper	Cu	2	214840,215029	3846
Diamond ()*	Diamond	C	1	214754	697
Dolomite ()*	None	CaMg(CO₃)₂	71	214644,214645,214647,214650,214654,214667,214677,214682,214690,214701,214704,214705,214706,214707,214710,214712,214719,214720,214722,214724,214746,214749,214751,214755,214757,214760,214761,214762,214763,214764,214766,214772,214773,214774,214776,214778,214782,214783,214787,214790,214792,214801,214804,214842,214846,214847,214848,214849,214850,214858,214859,214865,214870,214878,214885,214920,214927,214930,214936,214942,214945,214948,214951,214960,214986,214987,214992,215006,215007,215033,215037	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	1	214794	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	214973	8173
Felsőbányaite ()*	None	Al₄(SO₄)(OH)₁₀·4H₂O	1	214930	66
Ferro-actinolite ()*	Amphibole	Ca₂(Mg_2.5-0.0Fe²⁺_2.5-5.0)Si₈O₂₂(OH)₂	1	214973	129
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	214930	2740
Fluorite ()*	Fluorite	CaF₂	12	214643,214649,214669,214670,214671,214672,214722,214724,214872,214878,215006,215007	9617
Galena ()*	Rocksalt	PbS	44	214644,214645,214647,214650,214654,214670,214704,214705,214706,214707,214709,214710,214712,214719,214720,214725,214726,214760,214761,214762,214763,214764,214766,214772,214773,214774,214776,214778,214783,214787,214790,214792,214842,214846,214847,214848,214849,214850,214865,214866,214878,215006,215007,215033	24243
Gibbsite ()*	None	Al(OH)₃	1	214930	504
Goethite ()*	Diaspore	FeO(OH)	24	214647,214653,214654,214670,214749,214756,214766,214836,214845,214867,214878,214922,214923,214924,214930,214936,214942,214943,214951,214953,214986,215006,215007,215016	7437
Gold ()*	Copper	Au	13	214694,214723,214742,214797,214800,214803,214823,214826,214900,214941,215000,215004,215036	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	38	214649,214655,214670,214691,214733,214734,214735,214749,214751,214766,214808,214810,214819,214824,214825,214844,214878,214902,214922,214923,214924,214930,214935,214950,214951,214953,214970,214986,214987,214991,215003,215006,215007,215016,215023,215024,215026,215027	6890
Hematite ()*	Corundum	Fe₂O₃	11	214651,214653,214670,214749,214756,214841,214853,214878,214930,215006,215007	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	2	214647,214654	1689
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2	214794,215029	5433
Iowaite ()*	Hydrotalcite	Mg₆Fe³⁺₂(OH)₁₆Cl₂·4H₂O	1	214992	14
Iron ()*	Iron	Fe	5	214794,214840,214861,214887,215029	1089
Isocubanite ()*	Sphalerite Cubanite	CuFe₂S₃	2	214887,215029	191
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	4	214749,214878,215006,215007	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	5	214749,214878,214930,215006,215007	5591
Mackinawite ()*	None	(Fe,Ni)_1+xS (x = 0-0.07)	1	214887	451
Magnesite ()*	Calcite	Mg(CO₃)	1	214992	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	215029	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	12	214749,214766,214878,214930,214936,214942,214943,214951,214953,215006,215007,215016	12537
Marcasite ()*	Marcasite	FeS₂	37	214647,214649,214654,214665,214669,214670,214671,214722,214749,214766,214798,214842,214858,214860,214875,214878,214885,214889,214922,214923,214924,214927,214930,214936,214942,214945,214951,214952,214953,214960,214981,214986,214987,215006,215007,215016,215025	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	2	214952,214987	915
Merrillite ()*	Cerite	Ca₉NaMg(PO₄)₇	2	214840,215029	230
Millerite ()*	Millerite	NiS	16	214766,214857,214858,214859,214860,214870,214872,214875,214878,214879,214880,214881,214979,215002,215006,215007	1066
Molybdenite ()*	Molybdenite	MoS₂	1	214973	5800
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	4	215023,215024,215026,215027	2349
Pigeonite ()*	Pyroxene	(Mg,Fe,Ca)₂Si₂O₆	1	214794	303
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1	214973	1898
Pyrite ()*	Pyrite	FeS₂	60	214647,214649,214654,214655,214665,214669,214670,214671,214672,214704,214705,214722,214732,214749,214756,214761,214762,214763,214764,214766,214772,214773,214776,214778,214783,214787,214798,214819,214845,214858,214859,214860,214867,214870,214878,214885,214889,214893,214894,214922,214923,214924,214927,214930,214936,214942,214945,214951,214953,214960,214973,214979,214981,214986,214987,214992,215006,215007,215016,215019	39462
Pyroaurite ()*	Hydrotalcite	Mg₆Fe³⁺₂(CO₃)(OH)₁₆·4H₂O	1	214992	89
Pyrolusite ()*	Rutile	MnO₂	7	214729,214749,214870,214878,214988,215006,215007	3106
Quartz ()*	Quartz	SiO₂	81	214647,214654,214663,214666,214667,214670,214671,214674,214683,214684,214700,214704,214705,214745,214747,214748,214749,214751,214761,214762,214763,214764,214765,214772,214773,214776,214778,214787,214795,214805,214808,214816,214817,214824,214825,214828,214829,214832,214841,214843,214858,214859,214870,214872,214875,214877,214878,214885,214889,214890,214930,214936,214942,214943,214946,214951,214953,214955,214956,214957,214960,214962,214963,214967,214968,214973,214974,214979,214987,214993,214994,215003,215006,215007,215016,215019,215023,215024,215026,215027,215031	61156
Quenstedtite ()*	Not in a structural group	Fe³⁺₂(SO₄)₃·11H₂O	1	214958	17
Rutile ()*	Rutile	TiO₂	1	214794	5614
Sauconite ()*	Clay Smectite-vermiculite	Na_0.3Zn₃(Si,Al)₄O₁₀(OH)₂·4H₂O	1	214654	56
Schreibersite ()*	None	(Fe,Ni)₃P	2	214794,215029	374
Siderite ()*	Calcite	Fe(CO₃)	12	214649,214749,214874,214878,214930,214936,214942,214951,214953,215006,215007,215016	6417
Smithsonite ()*	Calcite	Zn(CO₃)	12	214647,214654,214701,214709,214725,214749,214766,214773,214842,214878,215006,215007	2473
Sphalerite ()*	Sphalerite	ZnS	76	214649,214654,214657,214658,214659,214660,214665,214669,214670,214671,214675,214698,214722,214724,214738,214740,214741,214746,214749,214760,214761,214763,214766,214772,214773,214776,214777,214787,214789,214792,214855,214858,214859,214860,214865,214870,214872,214875,214878,214885,214896,214909,214910,214911,214916,214917,214918,214919,214931,214932,214933,214936,214937,214938,214942,214945,214951,214953,214954,214960,214975,214976,214979,214986,214987,215006,215007,215009,215010,215011,215012,215013,215014,215015,215016,215019	21482
Spinel ()*	Spinel	MgAl₂O₄	1	214840	1934
Stanfieldite ()*	None	Ca₄Mg₅(PO₄)₆	1	214794	14
Taenite ()*	None	(Ni,Fe)	5	214794,214840,214861,214887,215029	703
Tetrataenite ()*	None	FeNi	3	214794,214840,215029	116
Tridymite ()*	Tridymite	SiO₂	1	214794	458
Troilite ()*	None	FeS	5	214794,214840,214861,214887,215029	1044
Whitlockite ()*	Cerite	Ca₉Mg(PO₃OH)(PO₄)₆	1	214794	104
Wollastonite ()*	Wollastonite	CaSiO₃	1	214973	1247
Wurtzite ()*	Wurtzite	ZnS	3	214670,214858,214859	372
Zircon ()*	Zircon	Zr(SiO₄)	1	214794	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R070323	Keokuk, Lee Co., Iowa, USA	https://rruff.info/R070323

All locality data graciously provided by mindat.org

All age data...