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Dan Patch Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USAi
Regional Level Types
Dan Patch MineMine
KeystoneTown
Keystone Mining DistrictMining District
Pennington CountyCounty
South DakotaState
USACountry

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Latitude & Longitude (WGS84):
43° 53' 40'' North , 103° 26' 30'' West
Latitude & Longitude (decimal):
43.89444,-103.44167
GeoHash:
G#: 9xy3wnspd
GRN:
N30W54
Type:
Mine
KΓΆppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Keystone343 (2017)1.9km
Hill City995 (2017)11.5km
Colonial Pine Hills2,493 (2017)16.1km
Custer1,952 (2017)19.0km
Hermosa392 (2017)21.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Western Dakota Gem & Mineral SocietyRapid City, South Dakota27km
Mindat Locality ID:
10500
Long-form identifier:
mindat:1:2:10500:7
GUID (UUID V4):
b2ecbd84-e57e-4243-b877-bd004058a370


Granite pegmatite.

A feldspar and beryllium mine located in sec. 7, T.2S., R.6E. near Mount Rushmore.

Mineralization is an oval, pipe-like pegmatite body concordant in quartz-biotite schist.

Workings include a large open cut.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


25 valid minerals.

Detailed Mineral List:

β“˜ Albite
Formula: Na(AlSi3O8)
Description: Occurs in pegmatite.
β“˜ Arsenopyrite
Formula: FeAsS
β“˜ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
β“˜ Bertrandite
Formula: Be4(Si2O7)(OH)2
Description: Occurs in pegmatite.
β“˜ Beryl
Formula: Be3Al2(Si6O18)
Description: Occurs in pegmatite.
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Brazilianite
Formula: NaAl3(PO4)2(OH)4
β“˜ 'Columbite-(Fe)-Columbite-(Mn) Series'
Description: Occurs in pegmatite.
β“˜ Fairfieldite
Formula: Ca2Mn2+(PO4)2 · 2H2O
β“˜ Fluorapatite
Formula: Ca5(PO4)3F
Description: Occurs in pegmatite.
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ LΓΆllingite
Formula: FeAs2
β“˜ Ludlamite
Formula: Fe2+3(PO4)2 · 4H2O
β“˜ Messelite
Formula: Ca2Fe2+(PO4)2 · 2H2O
β“˜ Microcline
Formula: K(AlSi3O8)
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Description: Occurs in pegmatite.
β“˜ Phosphoferrite
Formula: (Fe2+,Mn2+)3(PO4)2 · 3H2O
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ Siderite
Formula: FeCO3
β“˜ Sphalerite
Formula: ZnS
Description: Cadmium content to 1.7%
β“˜ Stannite
Formula: Cu2FeSnS4
β“˜ 'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
β“˜ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Description: Occurs in pegmatite.
β“˜ Triphylite
Formula: LiFe2+PO4
Description: Mn/Mn + Fe = 0.24
β“˜ Uraninite
Formula: UO2
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

Ca5(PO4)3Fβ“˜ Fluorapatite
LiFe2+PO4β“˜ Triphylite

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Sphalerite2.CB.05aZnS
β“˜Stannite2.CB.15aCu2FeSnS4
β“˜Pyrite2.EB.05aFeS2
β“˜LΓΆllingite2.EB.15aFeAs2
β“˜Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Quartz4.DA.05SiO2
β“˜Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Triphylite8.AB.10LiFe2+PO4
β“˜Brazilianite8.BK.05NaAl3(PO4)2(OH)4
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
β“˜Phosphoferrite8.CC.05(Fe2+,Mn2+)3(PO4)2 Β· 3H2O
β“˜Ludlamite8.CD.20Fe2+3(PO4)2 Β· 4H2O
β“˜Messelite8.CG.05Ca2Fe2+(PO4)2 Β· 2H2O
β“˜Fairfieldite8.CG.05Ca2Mn2+(PO4)2 Β· 2H2O
β“˜Torbernite8.EB.05Cu(UO2)2(PO4)2 Β· 12H2O
β“˜Autunite8.EB.05Ca(UO2)2(PO4)2 Β· 10-12H2O
Group 9 - Silicates
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Bertrandite9.BD.05Be4(Si2O7)(OH)2
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Columbite-(Fe)-Columbite-(Mn) Series'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hβ“˜ BertranditeBe4(Si2O7)(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ BrazilianiteNaAl3(PO4)2(OH)4
Hβ“˜ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ LudlamiteFe32+(PO4)2 · 4H2O
Hβ“˜ MesseliteCa2Fe2+(PO4)2 · 2H2O
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
Hβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
LiLithium
Liβ“˜ TriphyliteLiFe2+PO4
BeBeryllium
Beβ“˜ BertranditeBe4(Si2O7)(OH)2
Beβ“˜ BerylBe3Al2(Si6O18)
BBoron
Bβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oβ“˜ BertranditeBe4(Si2O7)(OH)2
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ BrazilianiteNaAl3(PO4)2(OH)4
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ LudlamiteFe32+(PO4)2 · 4H2O
Oβ“˜ MesseliteCa2Fe2+(PO4)2 · 2H2O
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
Oβ“˜ QuartzSiO2
Oβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ SideriteFeCO3
Oβ“˜ Tantalite(Mn,Fe)(Ta,Nb)2O6
Oβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oβ“˜ TriphyliteLiFe2+PO4
Oβ“˜ UraniniteUO2
Oβ“˜ ZirconZr(SiO4)
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluorapatiteCa5(PO4)3F
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ BrazilianiteNaAl3(PO4)2(OH)4
Naβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ BrazilianiteNaAl3(PO4)2(OH)4
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ BertranditeBe4(Si2O7)(OH)2
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ ZirconZr(SiO4)
PPhosphorus
Pβ“˜ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pβ“˜ BrazilianiteNaAl3(PO4)2(OH)4
Pβ“˜ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Pβ“˜ FluorapatiteCa5(PO4)3F
Pβ“˜ LudlamiteFe32+(PO4)2 · 4H2O
Pβ“˜ MesseliteCa2Fe2+(PO4)2 · 2H2O
Pβ“˜ Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
Pβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Pβ“˜ TriphyliteLiFe2+PO4
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ PyriteFeS2
Sβ“˜ SphaleriteZnS
Sβ“˜ StanniteCu2FeSnS4
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caβ“˜ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ MesseliteCa2Fe2+(PO4)2 · 2H2O
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnβ“˜ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Mnβ“˜ Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
Mnβ“˜ Tantalite(Mn,Fe)(Ta,Nb)2O6
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ LΓΆllingiteFeAs2
Feβ“˜ LudlamiteFe32+(PO4)2 · 4H2O
Feβ“˜ MesseliteCa2Fe2+(PO4)2 · 2H2O
Feβ“˜ Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
Feβ“˜ PyriteFeS2
Feβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feβ“˜ SideriteFeCO3
Feβ“˜ StanniteCu2FeSnS4
Feβ“˜ Tantalite(Mn,Fe)(Ta,Nb)2O6
Feβ“˜ TriphyliteLiFe2+PO4
CuCopper
Cuβ“˜ StanniteCu2FeSnS4
Cuβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
Asβ“˜ LΓΆllingiteFeAs2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
NbNiobium
Nbβ“˜ Tantalite(Mn,Fe)(Ta,Nb)2O6
SnTin
Snβ“˜ StanniteCu2FeSnS4
TaTantalum
Taβ“˜ Tantalite(Mn,Fe)(Ta,Nb)2O6
UUranium
Uβ“˜ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Uβ“˜ UraniniteUO2

Other Regions, Features and Areas containing this locality

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References

Rocks & Minerals: 60: 116.
Norton, James J. (1964) Pegmatites and other Precambrian Rocks in the Southern Black Hills; Geology and mineral deposits of some pegmatites in the southern Black Hills, South Dakota. USGS Professional Paper 297E.
Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bureau of Mines Information Circular 8298: 32 (Table A-1).
King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.pp.333-336
Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635
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