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Sherman Mine (Sherman tunnel; Leadville Corporation Mine; Day Mines; Hilltop Mine), Upper Iowa Gulch, Leadville District, Lake Co., Colorado, USA

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Latitude & Longitude (WGS84): 39° 13' 41'' North , 106° 10' 32'' West
Latitude & Longitude (decimal): 39.22820,-106.17569
GeoHash:G#: 9wurpvm0z
Locality type:Mine
Köppen climate type:Dfc : Subarctic climate


Ref.: Eckel, Edwin B. (1997),Minerals of Colorado, updated & revised: 21; Rocks & Min.: 65:61, Rocks & Min 70:5 pp 298-310.

A silver mine located in T. 9 S., R. 80 W., over 5 miles East of Leadville in upper Iowa Gulch, below Mount Sherman at the base of the Iowa Amphitheater at 12,200 feet of altitude. Started 1968-1970. Reopened 1975-1982. Produced 10 million oz. Ag.

Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,059 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


34 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Argentojarosite ?
Formula: AgFe3+3(SO4)2(OH)6
Description: May be plumbojarosite
Reference: Minerals of Colorado (1997) Eckels, E. B.
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Rocks & Min.: 65:61.
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Mineralogical Record:16(3):171-201
Baryte
Formula: BaSO4
Description: Crystal group 5.0 cm across. Colorado School of Mines Geology Museum, specimen # 82.66; C.E. Raines, photo.
Reference: "Minerals of Colorado, updated & revised", photo #13, by Eckel, Edwin B., 1997
'Bindheimite'
Formula: Pb2Sb2O6O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Eckhard D. Stuart collection (XRD by Canadian Museum of Nature)
Calcite
Formula: CaCO3
Reference: Rocks & Min 70:5 pp 298-310
Cerussite
Formula: PbCO3
Reference: Rocks & Min.: 65:61.
Chalcopyrite
Formula: CuFeS2
Reference: Eckhard D. Stuart collection (visual identification)
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Eckhard D. Stuart collection (visual identification)
Copper
Formula: Cu
Reference: Minerals of Colorado (1997) Eckel, E. B.
Covellite
Formula: CuS
Reference: Eckhard D. Stuart collection (visual identification)
Cuprite
Formula: Cu2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Dolomite
Formula: CaMg(CO3)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Galena
Formula: PbS
Reference: visual ID, self collected 8/25/07 by Eckhard Stuart.
Goethite
Formula: α-Fe3+O(OH)
Reference: Minerals of Colorado (1997) Eckel, E. B.
Graphite
Formula: C
Reference: Minerals of Colorado (1997) Eckel, E. B.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Mineralogical Record:16(3):171-201
Huntite
Formula: CaMg3(CO3)4
Description: Forms a major portion of the "Chinese talc" with quartz, dolomite and possibly native silver.
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Minerals of Colorado (1997) E.B. Eckel
Linarite
Formula: PbCu(SO4)(OH)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Mineralogical Record:16(3):171-201
'Manganese Oxides'
Reference: Paul Broyles
Oxyplumboroméite
Formula: Pb2Sb2O6O
Reference: Tony Nikischer
Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrite
Formula: FeS2
Reference: Paul J. Broyles specimens
Pyromorphite
Formula: Pb5(PO4)3Cl
Reference: Minerals of Colorado (1997) Eckel, E. B.
Quartz
Formula: SiO2
Reference: Rocks & Min.: 65:61.
Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
Reference: Rocks & Min.: 65:61.
Siderite
Formula: FeCO3
Reference: Mister Crystalman
Siderite var: Manganoan Siderite
Formula: (Fe,Mn)CO3
Reference: Mister Crystalman
Silver
Formula: Ag
Reference: Rocks & Min.: 65:61.
Smithsonite
Formula: ZnCO3
Reference: Rocks & Min.: 65:61.
Sphalerite
Formula: ZnS
Reference: Eckhard D. Stuart collection (visual identification)
Willemite
Formula: Zn2SiO4
Reference: Minerals of Colorado (1997) E.B. Eckel
Wulfenite
Formula: Pb(MoO4)
Reference: Rocks & Min.: 65:61.
Zincrosasite
Formula: (Zn,Cu)2(CO3)(OH)2
Reference: Tony Nikischer specimen and analysis

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
'Graphite'1.CB.05aC
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Covellite'2.CA.05aCuS
'Galena'2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Bindheimite'4.DH.20Pb2Sb2O6O
'Cuprite'4.AA.10Cu2O
'Goethite'4.00.α-Fe3+O(OH)
Oxyplumboroméite4.DH.Pb2Sb2O6O
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Aurichalcite'5.BA.15(Zn,Cu)5(CO3)2(OH)6
'Azurite'5.BA.05Cu3(CO3)2(OH)2
'Calcite'5.AB.05CaCO3
'Cerussite'5.AB.15PbCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Huntite'5.AB.25CaMg3(CO3)4
'Malachite'5.BA.10Cu2(CO3)(OH)2
Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
Siderite5.AB.05FeCO3
var: Manganoan Siderite5.AB.05(Fe,Mn)CO3
Smithsonite5.AB.05ZnCO3
Zincrosasite5.BA.10(Zn,Cu)2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anglesite'7.AD.35PbSO4
'Argentojarosite' ?7.BC.10AgFe3+3(SO4)2(OH)6
'Baryte'7.AD.35BaSO4
'Brochantite'7.BB.25Cu4(SO4)(OH)6
'Linarite'7.BC.65PbCu(SO4)(OH)2
Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
'Hemimorphite'9.BD.10Zn4Si2O7(OH)2 · H2O
Willemite9.AA.05Zn2SiO4
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Silver1.1.1.2Ag
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Smithsonite14.1.1.6ZnCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Miscellaneous
Huntite14.4.3.1CaMg3(CO3)4
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Rosasite16a.3.1.2(Cu,Zn)2(CO3)(OH)2
Zincrosasite16a.3.1.4(Zn,Cu)2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Baryte28.3.1.1BaSO4
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
(AB)2(XO4)Zq
Argentojarosite ?30.2.5.5AgFe3+3(SO4)2(OH)6
Linarite30.2.3.1PbCu(SO4)(OH)2
Plumbojarosite30.2.5.6Pb0.5Fe3+3(SO4)2(OH)6
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Pyromorphite41.8.4.1Pb5(PO4)3Cl
Group 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Bindheimite'44.1.1.2Pb2Sb2O6O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Willemite51.1.1.2Zn2SiO4
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Manganese Oxides'-
Oxyplumboroméite-Pb2Sb2O6O
Siderite
var: Manganoan Siderite
-(Fe,Mn)CO3

List of minerals for each chemical element

HHydrogen
H ArgentojarositeAgFe33+(SO4)2(OH)6
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H AzuriteCu3(CO3)2(OH)2
H BrochantiteCu4(SO4)(OH)6
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Goethiteα-Fe3+O(OH)
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Limonite(Fe,O,OH,H2O)
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H PlumbojarositePb0.5Fe33+(SO4)2(OH)6
H Rosasite(Cu,Zn)2(CO3)(OH)2
H Zincrosasite(Zn,Cu)2(CO3)(OH)2
CCarbon
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C CerussitePbCO3
C DolomiteCaMg(CO3)2
C GraphiteC
C HuntiteCaMg3(CO3)4
C MalachiteCu2(CO3)(OH)2
C Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
C Rosasite(Cu,Zn)2(CO3)(OH)2
C SideriteFeCO3
C SmithsoniteZnCO3
C Zincrosasite(Zn,Cu)2(CO3)(OH)2
OOxygen
O AnglesitePbSO4
O ArgentojarositeAgFe33+(SO4)2(OH)6
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O AzuriteCu3(CO3)2(OH)2
O BaryteBaSO4
O BindheimitePb2Sb2O6O
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O CerussitePbCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CupriteCu2O
O DolomiteCaMg(CO3)2
O Goethiteα-Fe3+O(OH)
O HemimorphiteZn4Si2O7(OH)2 · H2O
O HuntiteCaMg3(CO3)4
O Limonite(Fe,O,OH,H2O)
O LinaritePbCu(SO4)(OH)2
O MalachiteCu2(CO3)(OH)2
O Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
O OxyplumboroméitePb2Sb2O6O
O PlumbojarositePb0.5Fe33+(SO4)2(OH)6
O PyromorphitePb5(PO4)3Cl
O QuartzSiO2
O Rosasite(Cu,Zn)2(CO3)(OH)2
O SideriteFeCO3
O SmithsoniteZnCO3
O WillemiteZn2SiO4
O WulfenitePb(MoO4)
O Zincrosasite(Zn,Cu)2(CO3)(OH)2
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg HuntiteCaMg3(CO3)4
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si QuartzSiO2
Si WillemiteZn2SiO4
PPhosphorus
P PyromorphitePb5(PO4)3Cl
SSulfur
S AnglesitePbSO4
S ArgentojarositeAgFe33+(SO4)2(OH)6
S BaryteBaSO4
S BrochantiteCu4(SO4)(OH)6
S ChalcopyriteCuFeS2
S CovelliteCuS
S GalenaPbS
S LinaritePbCu(SO4)(OH)2
S PlumbojarositePb0.5Fe33+(SO4)2(OH)6
S PyriteFeS2
S SphaleriteZnS
ClChlorine
Cl PyromorphitePb5(PO4)3Cl
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca HuntiteCaMg3(CO3)4
MnManganese
Mn Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
FeIron
Fe ArgentojarositeAgFe33+(SO4)2(OH)6
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe Siderite (var: Manganoan Siderite)(Fe,Mn)CO3
Fe PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Fe PyriteFeS2
Fe SideriteFeCO3
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu AzuriteCu3(CO3)2(OH)2
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CopperCu
Cu CovelliteCuS
Cu CupriteCu2O
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu Rosasite(Cu,Zn)2(CO3)(OH)2
Cu Zincrosasite(Zn,Cu)2(CO3)(OH)2
ZnZinc
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn Rosasite(Cu,Zn)2(CO3)(OH)2
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
Zn WillemiteZn2SiO4
Zn Zincrosasite(Zn,Cu)2(CO3)(OH)2
MoMolybdenum
Mo WulfenitePb(MoO4)
AgSilver
Ag ArgentojarositeAgFe33+(SO4)2(OH)6
Ag SilverAg
SbAntimony
Sb BindheimitePb2Sb2O6O
Sb OxyplumboroméitePb2Sb2O6O
BaBarium
Ba BaryteBaSO4
PbLead
Pb AnglesitePbSO4
Pb BindheimitePb2Sb2O6O
Pb CerussitePbCO3
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2
Pb OxyplumboroméitePb2Sb2O6O
Pb PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Pb PyromorphitePb5(PO4)3Cl
Pb WulfenitePb(MoO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Permian - Devonian
251.902 - 419.2 Ma



ID: 3187583
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 419.2 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mississippian - Cambrian
323.2 - 541 Ma



ID: 2899936
Leadville Limestone, Williams Canyon Limestone , Manitou Limestone, and Sawatch Quartzite

Age: Paleozoic (323.2 - 541 Ma)

Stratigraphic Name: Leadville Limestone; Williams Canyon Limestone ; Manitou Limestone; Sawatch Quartzite

Comments: Original map source: Green, G.N., 1992, The Digital Geologic Map of Colorado in ARC/INFO Format: U.S. Geological Survey Open-File Report 92-0507, 9 p., scale 1:500,000.

Lithology: Major:{limestone}, Minor:{quartzite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Early Ordovician - Late Cambrian
470 - 501 Ma



ID: 3301456
Manitou Dolomite, including Upper Cambrian Taylor Pass Member of Myrow and others

Age: Paleozoic (470 - 501 Ma)

Stratigraphic Name: Manitou Dolomite

Description: Gray to light tan, locally mottled, fine- to medium-crystalline, thin to thickly bedded, dolostone and rare beds of dark-gray limestone; locally fossiliferous (crinoids, gastropods, echinoderms, nautiloids, and trilobite fragments). Lower part contains mostly white, but also gray and black chert nodules, lenses, and layers; very sparse white chert in upper part of formation. Contains flat-pebble (limey mudstone clasts) conglomerate (Widmann and others, 2011), just above Upper Cambrian Taylor Pass Member of the Manitou Dolomite of Myrow and others (2003). The Taylor Pass Member has an upper, resistant, purple-tinged dolomite overlying dark-red shale; the member was historically called the “red-cast beds” (Emmons and others, 1886), and was formerly considered the upper part of the shaly Peerless Formation (Behre, 1953; Tweto, 1974a). The Taylor Pass Member pinches out southward beneath the Buffalo Peaks, so the Upper Cambrian beds of the Manitou are mapped only north of the Buffalo Peaks (Widmann and others, 2011; Houck and others, 2012; Tweto, 1974a; Bohannon and Ruleman, 2013). Has disconformable contact with underlying Dotsero Formation. About 65 m thick

Reference: Kellogg, K.S., R.R. Shroba, C.A. Ruleman, R.G. Bohannon, W.C. McIntosh, W.R. Premo, M.A. Cosca, R.J. Moscati, T.R. Brandt. Geologic map of the upper Arkansas River valley region, north-central Colorado. doi: 10.3133/sim3382. U.S. Geological Survey Scientific Investigations Map 3382. [186]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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