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:
Dan Patch Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA

Oldest recorded age at locality: 1700
Youngest recorded age at locality: 1700

mindat Locality ID: 10500
mindat URL: http://www.mindat.org/loc-10500.html

Tectonic Settings:

Total number of sublocalities beneath "Dan Patch Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 43°53'40"N
Longitude: 103°26'30"W
Decimal Degree (lat, lon): 43.894444444444,-103.44166666667
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: Al As B Be C Ca Cu F Fe H K Li Mn Na O P S Si Sn U Zn Zr 

Elements from minerals reported directly at this locality: Al As B Be C Ca Cu F Fe H K Li Mn Na O P S Si Sn U Zn Zr 

Structural Groups for minerals in this locality: 
ApatiteArsenopyriteAutuniteBerylCalciteClayDiasporeFairfielditeFeldsparFluorite
LöllingiteMicaNoneNot in a structural groupOlivinePyriteQuartzReddingiteSphaleriteStannite
TourmalineZircon

25 IMA Minerals at location:
Albite  (*)Arsenopyrite  (*)Autunite  (*)Bertrandite  (*)Beryl  (*)
Brazilianite  (*)Fairfieldite  (*)Fluorapatite  (*)Goethite  (*)Löllingite  (*)
Ludlamite  (*)Messelite  (*)Microcline  (*)Muscovite  (*)Phosphoferrite  (*)
Pyrite  (*)Quartz  (*)Schorl  (*)Siderite  (*)Sphalerite  (*)
Stannite  (*)Torbernite  (*)Triphylite  (*)Uraninite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)1700170008803
Arsenopyrite  (*)ArsenopyriteFeAsS1700170009052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O1700170001272
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)2170017000606
Beryl  (*)BerylBe3Al2Si6O181700170004286
Brazilianite  (*)Not in a structural groupNaAl3(PO4)2(OH)417001700059
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O17001700072
Fluorapatite  (*)ApatiteCa5(PO4)3F1700170002740
Goethite  (*)DiasporeFeO(OH)1700170007437
Löllingite  (*)LöllingiteFeAs2170017000762
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O17001700066
Messelite  (*)FairfielditeCa2Fe2+(PO4)2·2H2O17001700043
Microcline  (*)FeldsparK(AlSi3O8)1700170004924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)217001700017380
Phosphoferrite  (*)ReddingiteFe2+3(PO4)2·3H2O17001700031
Pyrite  (*)PyriteFeS217001700039462
Quartz  (*)QuartzSiO217001700061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1700170002705
Siderite  (*)CalciteFe(CO3)1700170006417
Sphalerite  (*)SphaleriteZnS17001700021482
Stannite  (*)Stannite SphaleriteCu2FeSnS4170017000668
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O1700170001059
Triphylite  (*)OlivineLiFe2+(PO4)170017000313
Uraninite  (*)FluoriteUO21700170002718
Zircon  (*)ZirconZr(SiO4)1700170005251


1 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
Alexandra-0372170017001700 Age of pegmatite   Yes Li, Be, Sn, Cs, Ta, Nb, U122418Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USAHarney PeakNorton and Redden (1990)10.2138/am.2008.2633AM75_631 

SampleSource LocalityReference URL

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