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:
Barker-Ferguson Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA

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

mindat Locality ID: 6950
mindat URL: http://www.mindat.org/loc-6950.html

Tectonic Settings:

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

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
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 B Be C Ca Cu F Fe H K Li Mn Mo Na O P S Si Sn U Zn Zr 

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

Structural Groups for minerals in this locality: 
AmorphousApatiteAutuniteBerauniteBerylClayDiasporeFeldsparFluoriteHureaulite
LaueiteLazuliteLeucophosphiteMicaMolybdeniteNoneOlivinePhosphuranylitePyritePyroxene
QuartzRutileSphaleriteTourmalineVivianiteZircon

35 IMA Minerals at location:
Albite  (*)Autunite  (*)Barbosalite  (*)Beraunite  (*)Beryl  (*)
Cassiterite  (*)Fluellite  (*)Fluorapatite  (*)Goethite  (*)Graphite  (*)
Heterosite  (*)Hureaulite  (*)Laueite  (*)Leucophosphite  (*)Ludlamite  (*)
Microcline  (*)Molybdenite  (*)Muscovite  (*)Opal  (*)Uranophane-β  (*)
Phosphuranylite  (*)Pyrite  (*)Quartz  (*)Schorl  (*)Sicklerite  (*)
Sinkankasite  (*)Sphalerite  (*)Spodumene  (*)Strengite  (*)Torbernite  (*)
Triphylite  (*)Uraninite  (*)Uranophane-α  (*)Vivianite  (*)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
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O1700170001272
Barbosalite  (*)LazuliteFe2+Fe3+2(PO4)2(OH)217001700043
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O170017000136
Beryl  (*)BerylBe3Al2Si6O181700170004286
Cassiterite  (*)RutileSnO21700170005171
Fluellite  (*)NoneAl2(PO4)F2(OH)·7H2O17001700040
Fluorapatite  (*)ApatiteCa5(PO4)3F1700170002740
Goethite  (*)DiasporeFeO(OH)1700170007437
Graphite  (*)NoneC1700170002812
Heterosite  (*)OlivineFe3+(PO4)170017000204
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O170017000125
Laueite  (*)LaueiteMn2+Fe3+2(PO4)2(OH)2·8H2O17001700070
Leucophosphite  (*)LeucophosphiteKFe3+2(PO4)2(OH)·2H2O170017000110
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O17001700066
Microcline  (*)FeldsparK(AlSi3O8)1700170004924
Molybdenite  (*)MolybdeniteMoS21700170005800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)217001700017380
Opal  (*)AmorphousSiO2·nH2O1700170002994
Uranophane-β  (*)NoneCa(UO2)2(SiO3OH)2·5H2O170017000144
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O170017000182
Pyrite  (*)PyriteFeS217001700039462
Quartz  (*)QuartzSiO217001700061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1700170002705
Sicklerite  (*)OlivineLiMn2+(PO4)17001700066
Sinkankasite  (*)NoneMn2+Al(PO3OH)2(OH)·6H2O1700170003
Sphalerite  (*)SphaleriteZnS17001700021482
Spodumene  (*)PyroxeneLiAlSi2O6170017000688
Strengite  (*)NoneFe3+(PO4)·2H2O170017000263
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O1700170001059
Triphylite  (*)OlivineLiFe2+(PO4)170017000313
Uraninite  (*)FluoriteUO21700170002718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O170017000890
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O170017000636
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

All locality data graciously provided by mindat.org

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