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Hardesty Homestead Mine, Keystone Mining District, Pennington County, South Dakota, USAi
Regional Level Types
Hardesty Homestead MineMine
Keystone Mining DistrictMining District
Pennington CountyCounty
South DakotaState
USACountry

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Latitude & Longitude (WGS84):
43° North , 103° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~20km
GRN:
N30W54
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
45066
Long-form identifier:
mindat:1:2:45066:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Hardesty Mine


Ref.: Rocks & Min.: 75(3): 156-169; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

A pegmatite mine located in the NE¼ sec. 36, T.1S., R.5E., 4 miles northwest of Keystone.

Mineralization is an irregular, zoned pegmatite body in biotite-garnet-quartz schist.

Workings include 4 open cuts and a 10 foot deep shaft.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Amblygonite
Formula: LiAl(PO4)F
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ Cassiterite
Formula: SnO2
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
ⓘ Graphite
Formula: C
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Rhodochrosite
Formula: MnCO3
ⓘ Spodumene
Formula: LiAlSi2O6
ⓘ 'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
ⓘ 'Tapiolite'
Formula: (Fe,Mn)(Ta,Nb)2O6
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
Group 5 - Nitrates and Carbonates
ⓘRhodochrosite5.AB.05MnCO3
Group 8 - Phosphates, Arsenates and Vanadates
ⓘAmblygonite8.BB.05LiAl(PO4)F
Group 9 - Silicates
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘSpodumene9.DA.30LiAlSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
ⓘ'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
ⓘ'Columbite-(Fe)-Columbite-(Mn) Series'-

List of minerals for each chemical element

HHydrogen
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ TopazAl2(SiO4)(F,OH)2
LiLithium
Liⓘ AmblygoniteLiAl(PO4)F
Liⓘ SpodumeneLiAlSi2O6
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
CCarbon
Cⓘ GraphiteC
Cⓘ RhodochrositeMnCO3
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AmblygoniteLiAl(PO4)F
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CassiteriteSnO2
Oⓘ MicroclineK(AlSi3O8)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RhodochrositeMnCO3
Oⓘ SpodumeneLiAlSi2O6
Oⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Oⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ Columbite-(Fe)-Columbite-(Mn) Series
FFluorine
Fⓘ AmblygoniteLiAl(PO4)F
Fⓘ TopazAl2(SiO4)(F,OH)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AmblygoniteLiAl(PO4)F
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ SpodumeneLiAlSi2O6
Alⓘ TopazAl2(SiO4)(F,OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SpodumeneLiAlSi2O6
Siⓘ TopazAl2(SiO4)(F,OH)2
PPhosphorus
Pⓘ AmblygoniteLiAl(PO4)F
KPotassium
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
MnManganese
Mnⓘ RhodochrositeMnCO3
Mnⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Mnⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Mnⓘ Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Feⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Feⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Feⓘ Columbite-(Fe)-Columbite-(Mn) Series
NbNiobium
Nbⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Nbⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Nbⓘ Columbite-(Fe)-Columbite-(Mn) Series
SnTin
Snⓘ CassiteriteSnO2
TaTantalum
Taⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Taⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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