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Free Coinage Mining District, Stansbury Mountains, Tooele County, Utah, USAi
Regional Level Types
Free Coinage Mining DistrictMining District (Abandoned)
Stansbury MountainsMountain Range
Tooele CountyCounty
UtahState
USACountry

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Type:
Mining District (Abandoned) - last checked 2021
Deposit first discovered:
1895
Mindat Locality ID:
37468
Long-form identifier:
mindat:1:2:37468:9
GUID (UUID V4):
ec359709-e9d3-424d-87a4-4f3f2020c6be
Other/historical names associated with this locality:
Timpie Canyon Mining District


The Free Coinage (Timpie Canyon) district is in the northern Stansbury Mountains in northeastern Tooele County, about 17 mi northwest of Tooele. The district is a small Pb-Ag producer organized in 1895 and operated sporadically from 1917 into the 1970s. Total district metal production at modern metal prices is estimated at $556,000. The Monte Carlo and Utah Bunker Hill underground mines in the upper reaches of Miners Canyon were the largest operations (Stein and others, 1989).
The Free Coinage district is situated on the north flank of the Bingham–Park City mineral belt in the Basin and Range Province of northwestern Utah. The district lies on the east limb of the north-northeast-trending Deseret anticline. An Eocene-age monzonite porphyry dike is present in the southeastern part of the district. The polymetallic vein and replacement deposits are hosted by faulted Lower Mississippian carbonates, particularly the Gardison Limestone (Rigby, 1958). In addition to Pb-Zn-Ag, the replacement ores may be anomalous in As, Au, Cd, and Cu (USGS Model 19a).
Furthermore, a small quantity of cinnabar was reportedly mined in the 1950s from the Halladay Hg property south of Timpie Valley. The unusual coarse-grained cinnabar occurs as stringers along a fault breccia in nearly vertical, north-striking, Lower Mississippian Gardison Limestone (Rigby, 1958). Limited geochemistry suggests that the Hg ore has associated Ag, As, Au, Cu, Pb, Sb, and Zn.
The most economically important mining operations in the district are industrial mineral quarries that produced substantial quantities of limestone and dolomite (USGS Model 32g) for lime production, for use as flux in Cu smelting, and for cement raw material (Tripp and others, 1989).

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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

17 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:

β“˜ Anglesite
Formula: PbSO4
β“˜ Anorthite
Formula: Ca(Al2Si2O8)
β“˜ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
β“˜ Calcite
Formula: CaCO3
β“˜ Cerussite
Formula: PbCO3
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
β“˜ Cinnabar
Formula: HgS
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ 'Fayalite-Forsterite Series'
β“˜ Galena
Formula: PbS
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Gold
Formula: Au
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
β“˜ 'Limonite'
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Metacinnabar
Formula: HgS
β“˜ Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Smithsonite
Formula: ZnCO3
β“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Metacinnabar2.CB.05aHgS
β“˜Galena2.CD.10PbS
β“˜Cinnabar2.CD.15aHgS
β“˜Pyrite2.EB.05aFeS2
β“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Smithsonite5.AB.05ZnCO3
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Cerussite5.AB.15PbCO3
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Anglesite7.AD.35PbSO4
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Group 9 - Silicates
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1
β“˜Anorthite
var. Labradorite		9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
β“˜9.FA.35Ca(Al2Si2O8)
Unclassified
β“˜'Limonite'-
β“˜'Fayalite-Forsterite Series'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ CerussitePbCO3
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SmithsoniteZnCO3
OOxygen
Oβ“˜ AnglesitePbSO4
Oβ“˜ AnorthiteCa(Al2Si2O8)
Oβ“˜ CalciteCaCO3
Oβ“˜ CerussitePbCO3
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Oβ“˜ QuartzSiO2
Oβ“˜ SmithsoniteZnCO3
NaSodium
Naβ“˜ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mgβ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alβ“˜ AnorthiteCa(Al2Si2O8)
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
SiSilicon
Siβ“˜ AnorthiteCa(Al2Si2O8)
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siβ“˜ QuartzSiO2
SSulfur
Sβ“˜ AnglesitePbSO4
Sβ“˜ CinnabarHgS
Sβ“˜ GalenaPbS
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ MetacinnabarHgS
Sβ“˜ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Sβ“˜ PyriteFeS2
Sβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
CaCalcium
Caβ“˜ AnorthiteCa(Al2Si2O8)
Caβ“˜ CalciteCaCO3
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
FeIron
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znβ“˜ SmithsoniteZnCO3
SbAntimony
Sbβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
Auβ“˜ GoldAu
HgMercury
Hgβ“˜ CinnabarHgS
Hgβ“˜ MetacinnabarHgS
PbLead
Pbβ“˜ AnglesitePbSO4
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS
Pbβ“˜ PlumbojarositePb0.5Fe33+(SO4)2(OH)6

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate

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

Rigby, J.K., 1958, Geology of the Stansbury Mountains, eastern Tooele County, Utah, in Rigby, J.K., editor, Guidebook to the geology of Utah, no. 13, Geology of the Stansbury Mountains, Tooele County, Utah: Utah Geological Society, p. 1–134.
Stein, H.J., Bankey, V., Cunningham, C.G., Zimmerman, D.R., Brickey, D.W., Shubat, M., Campbell, D.L., and Podwysocki, M.H., 1989, Tooele 1Β° x 2Β° quadrangle, northwest Utah―a CUSMAP preassessment study: U.S. Geological Survey Open- File Report 89-0467, 134 p.
Tripp, B.T., Bishop, C.E., Shubat, M.A., and Blackett, R.E., 1989, Mineral occurrences of the Tooele 1Β° x 2Β° quadrangle, west- central Utah: Utah Geological and Mineral Survey Open-File Report 153, 85 p.
services.arcgis.com (n.d.) https://services.arcgis.com/ZzrwjTRez6FJiOq4/arcgis/rest/services/Metal_Mineral_Resources_web_View/FeatureServer/6/97/attachments/96
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