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Eagle Mine (New Jersey Zinc Eagle Mine; Gilman Mine; Wilkesbarre shaft; Newhouse tunnel; Little Chief Mine; Iron Mask Mine; Belden Mine; Black Iron Mine), Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle Co., Colorado, USAi
Regional Level Types
Eagle Mine (New Jersey Zinc Eagle Mine; Gilman Mine; Wilkesbarre shaft; Newhouse tunnel; Little Chief Mine; Iron Mask Mine; Belden Mine; Black Iron Mine)Mine
Gilman- not defined -
Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District)Mining District
Eagle Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
39° 32' 2'' North , 106° 23' 34'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Red Cliff274 (2017)3.2km
Minturn1,026 (2017)6.7km
Vail5,461 (2017)11.9km
Avon6,505 (2017)15.5km
Edwards10,266 (2011)21.2km


A former Zn-Pb-Ag-Cu-Au-Mn mine located in secs. 12 & 13, T6S, R81W, and in secds. 7 & 18, T6S, R80W, 6th Principal Meridian, 0.2 km (500 feet) NE of Gilman, on private (patented) land within a National Forest area. MRDS database stated accuracy for this location is 10 meters.

New Jersey Zinc Co. consolidated several mines and properties, including the Little Chief, Iron Mask, Belden, and Black Iron mines, into the Eagle mine by 1918. The Newhouse tunnel, near the railroad, and the Wilkesbarre shaft provide main access to some 20 levels and 65 miles of workings that extend at least 8,500 ft. down dip from the outcrop and 9,000 ft. along strike to develop the ore bodies.

Historically, the largest Zn- and Cu-producing mine in Colorado, the Eagle mine was closed in 1981. Cumulative production from the district, most of which came from the Eagle mine or its predecessors, totals nearly 400,000 ounces of Au, 67.6 million ounces of Ag, 212 million pounds of Cu, 317 million pounds of Pb, and 1.868 billion pounds of Zn, from 13.1 million tons of ore. About 200,000 tons of manganiferous iron ore was also produced.

The deposits are principally replacement deposits (mantos) of Zn-Pb-Ag ore and chimney deposits of Cu-Ag ore in dolomites of Mississippian and Late Devonian age. The ore body strikes N45W, dips 12E at a thickness of 30 meters, a depth-to-top of 460 meters, a width of 80 meters and a length of 1,220 meters. The ore bodies are replacement bodies with irregular and pipe-like structures. The primary mode of origin was hydrothermal and primary ore control was lithology and the second mode of control was igneous. The wallrock alteration is moderate (sericitic and advanced argillic). The host rocks are little deformed or faulted and dip about 12 degrees to the NE, away from the Sawatch anticline. Local rocks include rocks of the Minturn Formation in west-central and south-central and other units.

"The Eagle Mine, though never able to dominate zinc production so completely [compared with Climax's domination of molybdenum], remained the largest zinc producer and retained its position as one of the important lead and silver mines. It suffered serious labor troubles in 1952 and again in 1960 but was hurt more by a fluctuating zinc and lead price. After high levels in the early fifties, zinc production leveled off, then picked up again in the sixties, before slumping again late in the decade. San Miguel County, basically the Idarado mining operations, followed Eagle County in production" [of zinc]. (Smith, 1977, p. 150-151)


Workings include underground openings with a total length of 105,000 meters and an overall depth of 128 meters.

Production data are found in: Mining Engineering Magazine.

Reserve-Resource data: Reserves have been depleted, and the mine has been reclaimed. Cu-Ag ore was mined out as of December, 1977.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


57 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
'Alaskaite'
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Alunite
Formula: KAl3(SO4)2(OH)6
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Anglesite
Formula: PbSO4
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Arsenopyrite
Formula: FeAsS
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Baryte
Formula: BaSO4
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
'Beegerite'
Formula: Pb6Bi2S9
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Bornite
Formula: Cu5FeS4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Bournonite
Formula: PbCuSbS3
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcocite
Formula: Cu2S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Chlorargyrite
Formula: AgCl
Reference: Minerals of Colorado (1997) Eckel, E. B.
Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Copper
Formula: Cu
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Coquimbite
Formula: Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Reference: Minerals of Colorado (1997) Eckel, E. B.
Covellite
Formula: CuS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Dickite
Formula: Al2(Si2O5)(OH)4
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Digenite
Formula: Cu9S5
Dolomite
Formula: CaMg(CO3)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Dyscrasite
Formula: Ag3Sb
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
'Electrum'
Formula: (Au, Ag)
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Epsomite
Formula: MgSO4 · 7H2O
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Fluorapatite
Formula: Ca5(PO4)3F
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Freibergite
Formula: (Ag,Cu,◻)10Fe2+2Sb4S12
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Freieslebenite
Formula: AgPbSbS3
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Galena
Formula: PbS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Gold
Formula: Au
Reference: Minerals of Colorado (1997) Eckel, E. B.
Goslarite
Formula: ZnSO4 · 7H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Gunningite
Formula: ZnSO4 · H2O
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Gypsum
Formula: CaSO4 · 2H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Halloysite' ?
Formula: Al2(Si2O5)(OH)4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Hessite
Formula: Ag2Te
Reference: Minerals of Colorado (1997) Eckel, E. B.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: Minerals of Colorado (1997) Eckel, E. B.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Minerals of Colorado (1997) Eckel, E. B.
Ktenasite
Formula: Zn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Kutnohorite
Formula: CaMn2+(CO3)2
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Minerals of Colorado (1997) Eckel, E. B.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Matildite
Formula: AgBiS2
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Petzite
Formula: Ag3AuTe2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Polybasite
Formula: [(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Proustite ?
Formula: Ag3AsS3
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrite
Formula: FeS2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Pyrolusite
Formula: Mn4+O2
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Pyrrhotite
Formula: Fe7S8
Reference: Minerals of Colorado (1997) E.B. Eckel
Quartz
Formula: SiO2
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Quartz var: Amethyst
Formula: SiO2
Reference: Minerals of Colorado (1997) E.B. Eckel
Rhodochrosite
Formula: MnCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Römerite
Formula: Fe2+Fe3+2(SO4)4 · 14H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
Siderite
Formula: FeCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Smithsonite
Formula: ZnCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Sphalerite
Formula: ZnS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Sphalerite var: Marmatite
Formula: (Zn,Fe)S
Reference: Minerals of Colorado (1997) Eckel, E. B.
Sphalerite var: Schalenblende
Reference: Minerals of Colorado (1997) Eckel, E. B.
Stephanite
Formula: Ag5SbS4
Reference: Minerals of Colorado (1997) E.B. Eckel
Stromeyerite
Formula: AgCuS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Szomolnokite
Formula: FeSO4 · H2O
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Tetrahedrite
Formula: Cu6Cu4(Fe2+,Zn)2Sb4S13
Reference: "Minerals of Colorado, updated & revised", pp. 13-14, by Eckel, Edwin B., 1997
Tetrahedrite var: Argentian Tetrahedrite
Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Reference: Cobban, R., Collins, D., Foord, E., Kile, D., Modreski, P., and Murphy, J., (1997), "Minerals of Colorado, updated & revised", Page 475

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
'Electrum'1.AA.05(Au, Ag)
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Arsenopyrite2.EB.20FeAsS
Bornite2.BA.15Cu5FeS4
Bournonite2.GA.50PbCuSbS3
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Digenite2.BA.10Cu9S5
Dyscrasite2.AA.35Ag3Sb
Freibergite2.GB.05(Ag,Cu,◻)10Fe2+2Sb4S12
Freieslebenite2.JB.15AgPbSbS3
Galena2.CD.10PbS
Hessite2.BA.60Ag2Te
Matildite2.JA.20AgBiS2
Petzite2.BA.75Ag3AuTe2
Polybasite2.GB.15[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Proustite ?2.GA.05Ag3AsS3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
var: Marmatite2.CB.05a(Zn,Fe)S
var: Schalenblende2.CB.05aZnS
Stephanite2.GB.10Ag5SbS4
Stromeyerite2.BA.40AgCuS
Tetrahedrite2.GB.05Cu6Cu4(Fe2+,Zn)2Sb4S13
var: Argentian Tetrahedrite2.GB.05(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Dolomite5.AB.10CaMg(CO3)2
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Kutnohorite5.AB.10CaMn2+(CO3)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Anglesite7.AD.35PbSO4
Baryte7.AD.35BaSO4
Chalcanthite7.CB.20CuSO4 · 5H2O
Copiapite7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Coquimbite7.CB.55Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Epsomite7.CB.40MgSO4 · 7H2O
Fibroferrite7.DC.15Fe3+(SO4)(OH) · 5H2O
Goslarite7.CB.40ZnSO4 · 7H2O
Gunningite7.CB.05ZnSO4 · H2O
Gypsum7.CD.40CaSO4 · 2H2O
Halotrichite7.CB.85FeAl2(SO4)4 · 22H2O
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Ktenasite7.DD.20Zn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Römerite7.CB.75Fe2+Fe3+2(SO4)4 · 14H2O
Szomolnokite7.CB.05FeSO4 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
Dickite9.ED.05Al2(Si2O5)(OH)4
'Halloysite' ?9.ED.10Al2(Si2O5)(OH)4
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Unclassified Minerals, Rocks, etc.
'Alaskaite'-
'Beegerite'-Pb6Bi2S9
'Limonite'-(Fe,O,OH,H2O)

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
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:1
Dyscrasite2.2.1.1Ag3Sb
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
Digenite2.4.7.3Cu9S5
Hessite2.4.2.1Ag2Te
Petzite2.4.3.3Ag3AuTe2
Stromeyerite2.4.6.1AgCuS
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø > 4
Polybasite3.1.7.2[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
ø = 4
Stephanite3.2.4.1Ag5SbS4
3 <ø < 4
Freibergite3.3.6.3(Ag,Cu,◻)10Fe2+2Sb4S12
Tetrahedrite3.3.6.1Cu6Cu4(Fe2+,Zn)2Sb4S13
ø = 3
Bournonite3.4.3.2PbCuSbS3
Freieslebenite3.4.6.2AgPbSbS3
Proustite ?3.4.1.1Ag3AsS3
ø = 2
Matildite3.7.1.1AgBiS2
Group 4 - SIMPLE OXIDES
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
(AB)2X3
Braunite7.5.1.3Mn2+Mn3+6(SiO4)O8
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
Smithsonite14.1.1.6ZnCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Dolomite14.2.1.1CaMg(CO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Epsomite29.6.11.1MgSO4 · 7H2O
Goslarite29.6.11.2ZnSO4 · 7H2O
Gunningite29.6.2.5ZnSO4 · H2O
Gypsum29.6.3.1CaSO4 · 2H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
Szomolnokite29.6.2.2FeSO4 · H2O
AB2(XO4)4·H2O
Halotrichite29.7.3.2FeAl2(SO4)4 · 22H2O
Römerite29.7.2.1Fe2+Fe3+2(SO4)4 · 14H2O
A2(XO4)3·H2O
Coquimbite29.8.3.1Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Ktenasite31.6.3.1Zn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
(AB)(XO4)Zq·xH2O
Fibroferrite31.9.12.1Fe3+(SO4)(OH) · 5H2O
Miscellaneous
Copiapite31.10.5.1Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
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 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Dickite71.1.1.1Al2(Si2O5)(OH)4
'Halloysite' ?71.1.1.4Al2(Si2O5)(OH)4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Alaskaite'-
'Beegerite'-Pb6Bi2S9
'Electrum'-(Au, Ag)
'Limonite'-(Fe,O,OH,H2O)
Quartz
var: Amethyst
-SiO2
Sphalerite
var: Marmatite
-(Zn,Fe)S
var: Schalenblende-ZnS
Tetrahedrite
var: Argentian Tetrahedrite
-(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H DickiteAl2(Si2O5)(OH)4
H EpsomiteMgSO4 · 7H2O
H GunningiteZnSO4 · H2O
H HalotrichiteFeAl2(SO4)4 · 22H2O
H KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
H SzomolnokiteFeSO4 · H2O
H GoslariteZnSO4 · 7H2O
H ChalcanthiteCuSO4 · 5H2O
H CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
H Limonite(Fe,O,OH,H2O)
H JarositeKFe3+ 3(SO4)2(OH)6
H CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
H MelanteriteFe2+(H2O)6SO4 · H2O
H RömeriteFe2+Fe23+(SO4)4 · 14H2O
H FibroferriteFe3+(SO4)(OH) · 5H2O
H GypsumCaSO4 · 2H2O
H HydrozinciteZn5(CO3)2(OH)6
H HemimorphiteZn4Si2O7(OH)2 · H2O
H HalloysiteAl2(Si2O5)(OH)4
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C DolomiteCaMg(CO3)2
C RhodochrositeMnCO3
C SideriteFeCO3
C SmithsoniteZnCO3
C HydrozinciteZn5(CO3)2(OH)6
C KutnohoriteCaMn2+(CO3)2
OOxygen
O BaryteBaSO4
O AnkeriteCa(Fe2+,Mg)(CO3)2
O DolomiteCaMg(CO3)2
O RhodochrositeMnCO3
O SideriteFeCO3
O AluniteKAl3(SO4)2(OH)6
O AnglesitePbSO4
O BrauniteMn2+Mn63+(SiO4)O8
O DickiteAl2(Si2O5)(OH)4
O EpsomiteMgSO4 · 7H2O
O FluorapatiteCa5(PO4)3F
O GunningiteZnSO4 · H2O
O HalotrichiteFeAl2(SO4)4 · 22H2O
O KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
O MagnetiteFe2+Fe23+O4
O PyrolusiteMn4+O2
O QuartzSiO2
O SzomolnokiteFeSO4 · H2O
O GoslariteZnSO4 · 7H2O
O ChalcanthiteCuSO4 · 5H2O
O CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
O Limonite(Fe,O,OH,H2O)
O JarositeKFe3+ 3(SO4)2(OH)6
O CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
O MelanteriteFe2+(H2O)6SO4 · H2O
O RömeriteFe2+Fe23+(SO4)4 · 14H2O
O FibroferriteFe3+(SO4)(OH) · 5H2O
O GypsumCaSO4 · 2H2O
O SmithsoniteZnCO3
O HydrozinciteZn5(CO3)2(OH)6
O HemimorphiteZn4Si2O7(OH)2 · H2O
O KutnohoriteCaMn2+(CO3)2
O Quartz (var: Amethyst)SiO2
O HalloysiteAl2(Si2O5)(OH)4
FFluorine
F FluorapatiteCa5(PO4)3F
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
Mg EpsomiteMgSO4 · 7H2O
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
Al DickiteAl2(Si2O5)(OH)4
Al HalotrichiteFeAl2(SO4)4 · 22H2O
Al HalloysiteAl2(Si2O5)(OH)4
SiSilicon
Si BrauniteMn2+Mn63+(SiO4)O8
Si DickiteAl2(Si2O5)(OH)4
Si QuartzSiO2
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si Quartz (var: Amethyst)SiO2
Si HalloysiteAl2(Si2O5)(OH)4
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S PyriteFeS2
S BaryteBaSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S SphaleriteZnS
S AluniteKAl3(SO4)2(OH)6
S AnglesitePbSO4
S AcanthiteAg2S
S ArsenopyriteFeAsS
S BeegeritePb6Bi2S9
S BournonitePbCuSbS3
S CovelliteCuS
S EpsomiteMgSO4 · 7H2O
S Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
S FreieslebeniteAgPbSbS3
S GunningiteZnSO4 · H2O
S HalotrichiteFeAl2(SO4)4 · 22H2O
S KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
S MatilditeAgBiS2
S Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
S SzomolnokiteFeSO4 · H2O
S TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S13
S GoslariteZnSO4 · 7H2O
S DigeniteCu9S5
S ChalcanthiteCuSO4 · 5H2O
S Sphalerite (var: Marmatite)(Zn,Fe)S
S ChalcociteCu2S
S BorniteCu5FeS4
S StromeyeriteAgCuS
S CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
S MelanteriteFe2+(H2O)6SO4 · H2O
S RömeriteFe2+Fe23+(SO4)4 · 14H2O
S FibroferriteFe3+(SO4)(OH) · 5H2O
S GypsumCaSO4 · 2H2O
S PyrrhotiteFe7S8
S StephaniteAg5SbS4
S Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
S ProustiteAg3AsS3
ClChlorine
Cl ChlorargyriteAgCl
KPotassium
K AluniteKAl3(SO4)2(OH)6
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca DolomiteCaMg(CO3)2
Ca FluorapatiteCa5(PO4)3F
Ca GypsumCaSO4 · 2H2O
Ca KutnohoriteCaMn2+(CO3)2
MnManganese
Mn RhodochrositeMnCO3
Mn BrauniteMn2+Mn63+(SiO4)O8
Mn PyrolusiteMn4+O2
Mn KutnohoriteCaMn2+(CO3)2
FeIron
Fe PyriteFeS2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe ChalcopyriteCuFeS2
Fe SideriteFeCO3
Fe ArsenopyriteFeAsS
Fe Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Fe HalotrichiteFeAl2(SO4)4 · 22H2O
Fe MagnetiteFe2+Fe23+O4
Fe SzomolnokiteFeSO4 · H2O
Fe TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S13
Fe Sphalerite (var: Marmatite)(Zn,Fe)S
Fe BorniteCu5FeS4
Fe CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Fe Limonite(Fe,O,OH,H2O)
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe RömeriteFe2+Fe23+(SO4)4 · 14H2O
Fe FibroferriteFe3+(SO4)(OH) · 5H2O
Fe PyrrhotiteFe7S8
Fe Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
CuCopper
Cu ChalcopyriteCuFeS2
Cu BournonitePbCuSbS3
Cu CopperCu
Cu CovelliteCuS
Cu Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Cu KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
Cu Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Cu TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S13
Cu DigeniteCu9S5
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu BorniteCu5FeS4
Cu StromeyeriteAgCuS
Cu Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
ZnZinc
Zn SphaleriteZnS
Zn GunningiteZnSO4 · H2O
Zn KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
Zn TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S13
Zn GoslariteZnSO4 · 7H2O
Zn Sphalerite (var: Marmatite)(Zn,Fe)S
Zn SmithsoniteZnCO3
Zn HydrozinciteZn5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
AsArsenic
As ArsenopyriteFeAsS
As Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
As ProustiteAg3AsS3
AgSilver
Ag AcanthiteAg2S
Ag DyscrasiteAg3Sb
Ag Electrum(Au, Ag)
Ag Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Ag FreieslebeniteAgPbSbS3
Ag MatilditeAgBiS2
Ag Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Ag HessiteAg2Te
Ag PetziteAg3AuTe2
Ag StromeyeriteAgCuS
Ag ChlorargyriteAgCl
Ag StephaniteAg5SbS4
Ag Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Ag ProustiteAg3AsS3
SbAntimony
Sb BournonitePbCuSbS3
Sb DyscrasiteAg3Sb
Sb Freibergite(Ag,Cu,◻)10Fe22+Sb4S12
Sb FreieslebeniteAgPbSbS3
Sb Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Sb TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S13
Sb StephaniteAg5SbS4
Sb Tetrahedrite (var: Argentian Tetrahedrite)(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
TeTellurium
Te HessiteAg2Te
Te PetziteAg3AuTe2
BaBarium
Ba BaryteBaSO4
AuGold
Au Electrum(Au, Ag)
Au PetziteAg3AuTe2
Au GoldAu
PbLead
Pb GalenaPbS
Pb AnglesitePbSO4
Pb BeegeritePb6Bi2S9
Pb BournonitePbCuSbS3
Pb FreieslebeniteAgPbSbS3
BiBismuth
Bi BeegeritePb6Bi2S9
Bi MatilditeAgBiS2

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Colorado Geological Survey Bulletin 30 (1925).
Mining Engineering Magazine (1953), New Jersey Zinc, The Eagle Mine, (December): 1224-1225.
Radabaugh, R. E., Merchant, J. S., and Brown, J. M. (1968), Geology and ore deposits of the Gilman (Red Cliff, Battle Mountain) district, Eagle County, Colorado, in Ridge, J. D., editor, Ore deposits of the United States, 1933-1967 (Graton-Sales volume): New York, American Institute of Mining Engineers, p. 641-664.
Gentry, D. W. (1976), Lead & Zinc in Colorado & Wyoming, Bureau of Mines grant GO264005 (September 1976): 211 pp.
Gulf & Western Corp. Sec Form 10-K (1977) (July 31, 1977): 7.
Smith, D.A. (1977), Colorado Mining-A photographic history: Albuquerque, University of New Mexico Press, 176 p.
Gulf & Western Corp. Sec Form 10-K (1978) (July 31, 1978): 26, 27.
Lovering, T. S., Ogden Tweto, and T. G. Lovering (1978), Ore Deposits of the Gilman District, Eagle County, Colorado, USGS Professional Paper 1017, 90 pp.
Cobban, R., Collins, D., Foord, E., Kile, D., Modreski, P., and Murphy, J. (1997), "Minerals of Colorado, updated & revised", 665p.
Long, K. R., DeYoung, J. H., Jr., and Ludington, S. D. (1998), Database of significant deposits of gold, silver, copper, lead, and zinc in the United States: Geological Survey Open-File Report 98-206, part B.
Cook, R.B. (2003), Connoisseur's Choice: Sphalerite, Eagle Mine, Gilman, Colorado, Rocks & Minerals: 75: 330-334.
Murphy, J.A. (2003), Preserving Minerals and Mining History at the Eagle Mine, Gilman District, Eagle County, Colorado, Rocks & Minerals: 75: 323-328.
Warren, W.J., Jr. and E. Pedersen (2003) Minerals of the Gilman District and Eagle Mine, Eagle County, Colorado, Rocks & Minerals: 75: 298-323.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10190716 & 10108315.
Sharps, Colorado School of Mines Industry Bulletin: 6(6).
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0080370001.
Conservation Division Comp. date 4, 63.

USGS MRDS Record:10190716

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