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:
Pulaski Co., Arkansas, USA

Oldest recorded age at locality: 99
Youngest recorded age at locality: 85

mindat Locality ID: 23832
mindat URL: http://www.mindat.org/loc-23832.html

Tectonic Settings:

Total number of sublocalities beneath "Pulaski Co., Arkansas, USA": 19
Total number of bottom-level sublocalities: 14

Number of Child Localities: 6
Child Localities:
Ferndale
Jeffrey
Little Rock
Mount Pleasant Churh Wavellite Locality
North Little Rock
Pulaski Bauxite District

Latitude: 34°46'4"N
Longitude: 92°18'27"W
Decimal Degree (lat, lon): 34.767777777778,-92.3075
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 Ba Be C Ca Ce Cl Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb REE S Sb Si Sr Ta Th Ti Y Zn Zr 

Elements from minerals reported directly at this locality: Ca H Mg Na O Si 

Structural Groups for minerals in this locality: 
AeschyniteAllaniteAluniteAmorphousAmphiboleAnalcimeApatiteApophylliteAragoniteAstrophyllite
BaryteBastnäsiteBrochantiteBrookiteBurbankiteCalciteCancriniteCancrinite-sodaliteCatapleiiteChalcopyrite
ChloriteClayClinozoisiteColumbiteCoronaditeCorrensiteCorundumCovelliteDiasporeEpidote
EttringiteEudialyteFeldsparFluoriteGaidonnayiteGarnetGypsumJoaquiniteKaoliniteLepidocrocite
LinariteMalachiteMicaMolybdeniteMordeniteNatroliteNickelineNoneNot in a structural groupParisite
PectolitePrehnitePyritePyrophyllitePyroxeneQuartzRocksaltRutileSapphirineScheelite
SerpentineSmectite-vermiculiteSodaliteSphaleriteSpinelTetrahedriteThomsoniteTitaniteTridymiteTurquoise
WavelliteWeliniteWurtziteWöhleriteZircon

117 IMA Minerals at location:
Aegirine  (*)Aenigmatite  (*)Aeschynite-(Y)  (*)Albite  (*)Allanite-(Ce)  (*)
Analcime  (*)Anatase  (*)Andradite  (*)Anglesite  (*)Anhydrite  (*)
Ankerite  (*)Annite  (*)Anorthite  (*)Arfvedsonite  (*)Astrophyllite  (*)
Augite  (*)Azurite  (*)Barwoodite  (*)Baryte  (*)Bastnäsite-(Ce)  (*)
Böhmite  (*)Britholite-(Ce)  (*)Brochantite  (*)Brookite  (*)Burbankite  (*)
Calcite  (*)Cancrinite  (*)Catapleiite  (*)Cerussite  (*)Chalcopyrite  (*)
Chamosite  (*)Chrysotile  (*)Cookeite  (*)Covellite  (*)Cryptomelane  (*)
Dickite  (*)Diopside  (*)Dolomite  (*)Edenite  (*)Eggletonite  (*)
Epidote  (*)Eudialyte  (*)Fergusonite-(Ce)  (*)Fersmite  (*)Florencite-(Ce)  (*)
Fluorapatite  (*)Fluorapophyllite-(K)  (*)Fluorite  (*)Freibergite  (*)Gaidonnayite  (*)
Galena  (*)Ganophyllite  (*)Gibbsite  (*)Goethite  (*)Gypsum  (*)
Haüyne  (*)Helvine  (*)Hematite  (*)Ilmenite  (*)Joaquinite-(Ce)  (*)
Kaersutite  (*)Kainosite-(Y)  (*)Kaolinite  (*)Kupletskite  (*)Låvenite  (*)
Lazurite  (*)Linarite  (*)Magnetite  (*)Malachite  (*)Mesolite  (*)
Microcline  (*)Molybdenite  (*)Mordenite  (*)Mosandrite-(Ce)  (*)Muscovite  (*)
Nacrite  (*)Narsarsukite  (*)Natrolite  (*)Nepheline  (*)Nontronite  (*)
Nosean  (*)Opal  (*)Orthoclase  (*)Parisite-(Ce)  (*)Pectolite  (*)
Phlogopite  (*)Polylithionite  (*)Prehnite  (*)Pyrite  (*)Pyrolusite  (*)
Pyrophanite  (*)Pyrophyllite  (*)Pyrrhotite  (*)Quartz  (*)Rectorite  (*)
Riebeckite  (*)Rinkite-(Ce)  (*)Rutile  (*)Serandite  (*)Siderite  (*)
Smithsonite  (*)Sodalite  (*)Sphalerite  (*)Spinel  (*)Stevensite  (*)
Tennantite-(Fe)  (*)Tetrahedrite-(Zn)  (*)Thaumasite  (*)Thomsonite-Ca  (*)Thorite  (*)
Titanite  (*)Turquoise  (*)Vermiculite  (*)Wavellite  (*)Wurtzite  (*)
Zircon  (*)Zircophyllite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O699855150210,150211,150212,150213,1502141022
Aenigmatite  (*)SapphirineNa4[Fe2+10Ti2]O4[Si12O36]99852150210,150211133
Aeschynite-(Y)  (*)Aeschynite(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)699851150211141
Albite  (*)FeldsparNa(AlSi3O8)99853150210,150211,1502148803
Allanite-(Ce)  (*)Allanite EpidoteCaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)99852150210,150211706
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O99853150210,150211,1502121627
Anatase  (*)Not in a structural groupTiO299852150210,1502112162
Andradite  (*)GarnetCa3Fe3+2(SiO4)399852150210,1502111534
Anglesite  (*)BarytePb(SO4)11502152734
Anhydrite  (*)Not in a structural groupCa(SO4)99852150210,1502111588
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)299853150208,150211,1502153092
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)299851150211356
Anorthite  (*)FeldsparCa(Al2Si2O8)99852150210,1502111036
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)299852150210,150211295
Astrophyllite  (*)AstrophylliteK2NaFe2+7Ti2(Si4O12)2O2(OH)4F99852150210,150211161
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O699853150210,150211,1502122060
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211502155509
Barwoodite  (*)WeliniteMn2+6(Nb5+,   )2(SiO4)2(O,OH)699852150211,1502122
Baryte  (*)BaryteBa(SO4)99853150210,150211,15022211547
Bastnäsite-(Ce)  (*)BastnäsiteCe(CO3)F99851150210304
Böhmite  (*)LepidocrociteAlO(OH)1150222195
Britholite-(Ce)  (*)Apatite(Ce,Ca)5(SiO4)3(OH)99851150210115
Brochantite  (*)BrochantiteCu4(SO4)(OH)611502151633
Brookite  (*)BrookiteTiO299852150210,150211700
Burbankite  (*)Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)59985115021152
Calcite  (*)CalciteCa(CO3)99853150210,150211,15021227770
Cancrinite  (*)Cancrinite(Na,Ca,   )8(Al6Si6)O24(CO3,SO4)2·2H2O99852150210,150211232
Catapleiite  (*)CatapleiiteNa2Zr(Si3O9)·2H2O99853150210,150211,150212113
Cerussite  (*)AragonitePb(CO3)11502154979
Chalcopyrite  (*)ChalcopyriteCuFeS2115021527198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)899851150211577
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)499851150210951
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)899855150208,150210,150211,150215,150221181
Covellite  (*)CovelliteCuS11502154165
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O161150216599
Dickite  (*)Clay KaoliniteAl2Si2O5(OH)42150215,150217651
Diopside  (*)PyroxeneCaMgSi2O699852150210,1502114135
Dolomite  (*)NoneCaMg(CO3)2998511502149895
Edenite  (*)AmphiboleNaCa2Mg5(Si7Al)O22(OH)299851150210160
Eggletonite  (*)Clay(Na,K,Ca)xMn6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)99852150210,1502113
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)99853150210,150211,1502128173
Eudialyte  (*)EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)299852150210,150211182
Fergusonite-(Ce)  (*)ScheeliteCeNbO4·0.3H2O9985115021016
Fersmite  (*)ColumbiteCaNb2O699852150210,15021183
Florencite-(Ce)  (*)AluniteCeAl3(PO4)2(OH)69985115021073
Fluorapatite  (*)ApatiteCa5(PO4)3F99854150208,150210,150211,1502122740
Fluorapophyllite-(K)  (*)ApophylliteKCa4Si8O20F·8H2O99851150210303
Fluorite  (*)FluoriteCaF299853150210,150211,1502149617
Freibergite  (*)TetrahedriteAg6[Cu4Fe2]Sb4S121150215663
Gaidonnayite  (*)GaidonnayiteNa2ZrSi3O9·2H2O99852150210,15021121
Galena  (*)RocksaltPbS99854150208,150210,150211,15021524243
Ganophyllite  (*)Clay(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)9985115021045
Gibbsite  (*)NoneAl(OH)31150222504
Goethite  (*)DiasporeFeO(OH)11502087437
Gypsum  (*)GypsumCa(SO4)·2H2O99852150210,1502116890
Haüyne  (*)Sodalite Cancrinite-sodaliteNa3Ca(Si3Al3)O12(SO4)99852150210,150211158
Helvine  (*)Sodalite Cancrinite-sodaliteBe3Mn2+4(SiO4)3S99852150210,150211237
Hematite  (*)CorundumFe2O3115021514640
Ilmenite  (*)CorundumFe2+Ti4+O399853150210,150211,1502145433
Joaquinite-(Ce)  (*)JoaquiniteNaBa2Fe2+Ti2Ce2(Si4O12)2O2(OH)·H2O9985115021011
Kaersutite  (*)AmphiboleNaCa2(Mg3AlTi4+)(Si6Al2)O22O299852150210,150211179
Kainosite-(Y)  (*)NoneCa2Y2(SiO3)4(CO3)·H2O9985115021199
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)499852150210,1502125591
Kupletskite  (*)AstrophylliteK2NaMn2+7Ti2(Si4O12)2O2(OH)4F99853150210,150211,15021433
Låvenite  (*)Wöhlerite(Na,Ca)4(Mn2+,Fe2+)2(Zr,Ti,Nb)2(Si2O7)2(O,F)499853150210,150211,15021258
Lazurite  (*)Cancrinite-sodalite SodaliteNa7Ca(Al6Si6O24)(SO4)(S3)1-·H2O99852150210,15021137
Linarite  (*)LinariteCuPb(SO4)(OH)21150215987
Magnetite  (*)SpinelFe2+Fe3+2O499853150210,150211,15021214899
Malachite  (*)MalachiteCu2(CO3)(OH)22150205,15021512537
Mesolite  (*)NatroliteNa2Ca2(Si9Al6)O30·8H2O99852150210,150211425
Microcline  (*)FeldsparK(AlSi3O8)99852150210,1502114924
Molybdenite  (*)MolybdeniteMoS299852150208,1502115800
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O99851150210405
Mosandrite-(Ce)  (*)None(Ca3REE)[(H2O)2Ca0.5   0.5]Ti(Si2O7)2(OH)2(H2O)299852150210,15021145
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2115021517380
Nacrite  (*)Clay KaoliniteAl2Si2O5(OH)41150215112
Narsarsukite  (*)NoneNa2(Ti,Fe3+)Si4(O,F)1199852150210,15021134
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O99853150210,150211,1502121236
Nepheline  (*)TridymiteNa3K(Al4Si4O16)99853150210,150211,150212884
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O99851150211471
Nosean  (*)Sodalite Cancrinite-sodaliteNa8(Si6Al6)O24(SO4)·H2O99852150210,15021175
Opal  (*)AmorphousSiO2·nH2O99852150210,1502112994
Orthoclase  (*)FeldsparK(AlSi3O8)99852150210,1502112349
Parisite-(Ce)  (*)ParisiteCaCe2(CO3)3F299853150211,150212,150214112
Pectolite  (*)PectoliteNaCa2Si3O8(OH)99852150210,150211363
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)299854150210,150211,150212,1502142273
Polylithionite  (*)MicaKLi2AlSi4O10F29985115021189
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)2998511502101898
Pyrite  (*)PyriteFeS299855150208,150210,150211,150212,15021539462
Pyrolusite  (*)RutileMnO299853150210,150211,1502163106
Pyrophanite  (*)CorundumMn2+TiO399853150210,150211,150212244
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)21150215771
Pyrrhotite  (*)NickelineFe7S899852150210,1502119056
Quartz  (*)QuartzSiO299859150206,150208,150210,150211,150215,150217,150218,150219,15022161156
Rectorite  (*)Corrensite Clay(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O2150208,15021749
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)299852150210,150211375
Rinkite-(Ce)  (*)None(Ca3REE)Na(NaCa)Ti(Si2O7)2(OF)F29985115021053
Rutile  (*)RutileTiO211502085614
Serandite  (*)PectoliteNaMn2+2Si3O8(OH)99852150210,15021138
Siderite  (*)CalciteFe(CO3)99855150210,150211,150214,150215,1502226417
Smithsonite  (*)CalciteZn(CO3)11502152473
Sodalite  (*)Cancrinite-sodalite SodaliteNa4(Si3Al3)O12Cl99852150210,150211444
Sphalerite  (*)SphaleriteZnS99854150208,150210,150211,15021521482
Spinel  (*)SpinelMgAl2O499852150210,1502111934
Stevensite  (*)Clay(Ca,Na)xMg3-ySi4O10(OH)29985057
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S1311502151803
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1311502155317
Thaumasite  (*)EttringiteCa3Si(OH)6(CO3)(SO4)·12H2O99852150210,150211183
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O99852150210,150211452
Thorite  (*)ZirconTh(SiO4)998511502101006
Titanite  (*)TitaniteCaTi(SiO4)O89874150210,150211,150212,1502144899
Turquoise  (*)TurquoiseCuAl6(PO4)4(OH)8·4H2O1150205484
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O99852150210,150211652
Wavellite  (*)WavelliteAl3(PO4)2(OH)3·5H2O1150219374
Wurtzite  (*)WurtziteZnS99852150210,150211372
Zircon  (*)ZirconZr(SiO4)99852150210,1502115251
Zircophyllite  (*)AstrophylliteK2NaFe2+7Zr2(Si4O12)2O2(OH)4F998511502115


4 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
AJS265_848-00005938589±4K-Ar biotite     14080Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USAGranite MountainZartman et al. (1967)10.2475/ajs.265.10.848AJS265_848 
AJS265_848-00006998994±5K-Ar biotite     14080Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USAGranite MountainZartman et al. (1967)10.2475/ajs.265.10.848AJS265_848 
AJS265_848-00007928689±3Rb-Sr biotite     14080Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USAGranite MountainZartman et al. (1967)10.2475/ajs.265.10.848AJS265_848 
Bradley_2012_090898788±1  titanite   Titanite  14080Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USAGranite MountainMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 

SampleSource LocalityReference URL
R100097Granite Mountain Quarry No. 2, Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USAhttps://rruff.info/R100097

All locality data graciously provided by mindat.org

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