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Erickson Mining District, Tooele County, Utah, USAi
Regional Level Types
Erickson Mining DistrictMining District
Tooele CountyCounty
UtahState
USACountry

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Neighbouring regions:
Erickson Mining District, Juab County, Utah, USA
Type:
Mining District
Mindat Locality ID:
418425
Long-form identifier:
mindat:1:2:418425:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Black Crook Mining District; Indian Springs


The Erickson (Indian Spring) mining district covers the southern and western Simpson Mountains of southern Tooele County about 32 mi west of Eureka. The district was organized in 1894 and became a modest Mn-Pb-Ag-Zn producer. Total district metal production at modern metal prices is estimated at $3.8 million. The Erickson district is the third largest Mn producer in Utah. The Bar X mine is probably the largest producer.
The Simpson Mountains are a small desert mountain range in the Basin and Range Province of western Utah. The range is composed of three structural blocks: (1) a northern block composed of Proterozoic and Lower Cambrian clastic meta- sedimentary rocks; (2) a central, easterly trending graben of Paleozoic sedimentary rocks; (3) and a southern block of folded Proterozoic clastic meta-sedimentary rocks. Mineralization is confined to the two southern blocks. The mineralization in the central graben is dominantly gently-dipping, epithermal Ag-Au veins (USGS Model 25c) with pyrite-tetrahedrite-chalcopyrite that constitute a small percentage of the districtโ€™s overall production (Thomas, 1958).
Mineralization in the southern block consists of Mn-Pb-Zn-Ag polymetallic veins (USGS Model 22c) in Neoproterozoic quartzites, metaconglomerates, and shales. These metasedimentary rocks are broadly folded into a large northerly trending and plunging anticline centered on Death Canyon. Locally these veins have strongly anomalous Mo and Sn. The southern block also has some small, Miocene-age high-silica rhyolitic intrusive bodies (~16 Ma).
The southern Erickson district mineralization occurs primarily as veins occupying northwesterly and easterly trending fault zones. The northwest-trending faults show greater brecciation and throw (Fry and Wilson, 1949). Mineralization is predominantly Pb-Zn-Ag in the middle reaches of Death Canyon near the Bar X mine, and Mn becomes more dominant in the mines/prospects to the north and east. The veins, generally south and west of the Bar X, have strongly anomalous Mo (1000 ppm), Sn (200 ppm), and weakly anomalous Cu in U.S. Geological Survey National Geochemical Database samples.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
โ“˜ Dolomite
Formula: CaMg(CO3)2
โ“˜ Galena
Formula: PbS
โ“˜ Hematite
Formula: Fe2O3
โ“˜ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
โ“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
โ“˜ 'Limonite'
Localities: Reported from at least 6 localities in this region.
โ“˜ Malachite
Formula: Cu2(CO3)(OH)2
โ“˜ Native Silver
Formula: Ag
โ“˜ Pyrite
Formula: FeS2
Localities: Reported from at least 6 localities in this region.
โ“˜ Quartz
Formula: SiO2
โ“˜ Rhodochrosite
Formula: MnCO3
โ“˜ Rhodonite
Formula: CaMn3Mn[Si5O15]
โ“˜ Smithsonite
Formula: ZnCO3
โ“˜ Sphalerite
Formula: ZnS
โ“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Native Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Galena2.CD.10PbS
โ“˜Pyrite2.EB.05aFeS2
โ“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
โ“˜Hematite4.CB.05Fe2O3
โ“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
โ“˜Rhodochrosite5.AB.05MnCO3
โ“˜Smithsonite5.AB.05ZnCO3
โ“˜Dolomite5.AB.10CaMg(CO3)2
โ“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Group 9 - Silicates
โ“˜Hemimorphite9.BD.10Zn4Si2O7(OH)2 ยท H2O
โ“˜Rhodonite9.DK.05CaMn3Mn[Si5O15]
โ“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 ยท nH2O, x < 1
Unclassified
โ“˜'Limonite'-

List of minerals for each chemical element

HHydrogen
Hโ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hโ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Hโ“˜ JarositeKFe33+(SO4)2(OH)6
Hโ“˜ MalachiteCu2(CO3)(OH)2
CCarbon
Cโ“˜ DolomiteCaMg(CO3)2
Cโ“˜ MalachiteCu2(CO3)(OH)2
Cโ“˜ RhodochrositeMnCO3
Cโ“˜ SmithsoniteZnCO3
OOxygen
Oโ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oโ“˜ DolomiteCaMg(CO3)2
Oโ“˜ HematiteFe2O3
Oโ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Oโ“˜ JarositeKFe33+(SO4)2(OH)6
Oโ“˜ MalachiteCu2(CO3)(OH)2
Oโ“˜ QuartzSiO2
Oโ“˜ RhodochrositeMnCO3
Oโ“˜ RhodoniteCaMn3Mn[Si5O15]
Oโ“˜ SmithsoniteZnCO3
MgMagnesium
Mgโ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alโ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Siโ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siโ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Siโ“˜ QuartzSiO2
Siโ“˜ RhodoniteCaMn3Mn[Si5O15]
SSulfur
Sโ“˜ ChalcopyriteCuFeS2
Sโ“˜ GalenaPbS
Sโ“˜ JarositeKFe33+(SO4)2(OH)6
Sโ“˜ PyriteFeS2
Sโ“˜ SphaleriteZnS
Sโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kโ“˜ JarositeKFe33+(SO4)2(OH)6
CaCalcium
Caโ“˜ DolomiteCaMg(CO3)2
Caโ“˜ RhodoniteCaMn3Mn[Si5O15]
MnManganese
Mnโ“˜ RhodochrositeMnCO3
Mnโ“˜ RhodoniteCaMn3Mn[Si5O15]
FeIron
Feโ“˜ ChalcopyriteCuFeS2
Feโ“˜ HematiteFe2O3
Feโ“˜ JarositeKFe33+(SO4)2(OH)6
Feโ“˜ PyriteFeS2
CuCopper
Cuโ“˜ ChalcopyriteCuFeS2
Cuโ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuโ“˜ MalachiteCu2(CO3)(OH)2
Cuโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znโ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Znโ“˜ SmithsoniteZnCO3
Znโ“˜ SphaleriteZnS
AgSilver
Agโ“˜ Native SilverAg
SbAntimony
Sbโ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
Pbโ“˜ GalenaPbS

Fossils

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Localities in this Region

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USA

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North America PlateTectonic Plate
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This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Fry, E., and Wilson, S.R., 1949, Investigation of the Huber-Rydalch manganese deposits, Tooele County, Utah: U.S. Bureau of Mines Report of Investigation 4601, 7 p.
Thomas, G.H., 1958, Geology of Indian Springs quadrangle, Tooele and Juab Counties, Utah: Brigham Young University Research Studies, v. 5, no. 4, 35 p.
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