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Black Iron Mine (Eagle No. 2 Mine; Iron Mask), Gilman, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA

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Latitude & Longitude (WGS84): 39° 31' 14'' North , 106° 23' 8'' West
Latitude & Longitude (decimal): 39.52070,-106.38572
GeoHash:G#: 9xh2g4s2c
Locality type:Mine
Köppen climate type:Dfc : Subarctic climate


Ref.: Dana 6:1089. This mine was consolidated into the Eagle mine.

Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,039 mineral species & varietal names listed

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


13 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Cerussite
Formula: PbCO3
Reference: Minerals of Colorado (1997) E.B. Eckel
Coquimbite
Formula: Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
Reference: Minerals of Colorado (1997) Eckel, E. B.
Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
Reference: Dana 6:1089.
Galena
Formula: PbS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Goslarite
Formula: ZnSO4 · 7H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
'commodity:Iron'
Formula: Fe
Reference: From USGS MRDS database
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Minerals of Colorado (1997) Eckel, E. B.
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Psilomelane'
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 (1997) E.B. Eckel
Siderite
Formula: FeCO3
Reference: Minerals of Colorado (1997) E.B. Eckel
Smithsonite
Formula: ZnCO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Sulphur
Formula: S8
Reference: Minerals of Colorado (1997) Eckel, E. B.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Sulphur'1.CC.05S8
Group 2 - Sulphides and Sulfosalts
'Galena'2.CD.10PbS
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Pyrolusite'4.DB.05Mn4+O2
Group 5 - Nitrates and Carbonates
'Cerussite'5.AB.15PbCO3
'Siderite'5.AB.05FeCO3
'Smithsonite'5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anglesite'7.AD.35PbSO4
'Coquimbite'7.CB.55Fe2-xAlx(SO4)3 · 9H2O, x ~0.5
'Fibroferrite'7.DC.15Fe3+(SO4)(OH) · 5H2O
'Goslarite'7.CB.40ZnSO4 · 7H2O
'Jarosite'7.BC.10KFe3+ 3(SO4)2(OH)6
'Melanterite'7.CB.35Fe2+(H2O)6SO4 · H2O
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Smithsonite14.1.1.6ZnCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Goslarite29.6.11.2ZnSO4 · 7H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
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
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)(XO4)Zq·xH2O
Fibroferrite31.9.12.1Fe3+(SO4)(OH) · 5H2O
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-

List of minerals for each chemical element

HHydrogen
H CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
H FibroferriteFe3+(SO4)(OH) · 5H2O
H GoslariteZnSO4 · 7H2O
H JarositeKFe3+ 3(SO4)2(OH)6
H Limonite(Fe,O,OH,H2O)
H MelanteriteFe2+(H2O)6SO4 · H2O
CCarbon
C CerussitePbCO3
C SideriteFeCO3
C SmithsoniteZnCO3
OOxygen
O AnglesitePbSO4
O CerussitePbCO3
O CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
O FibroferriteFe3+(SO4)(OH) · 5H2O
O GoslariteZnSO4 · 7H2O
O JarositeKFe3+ 3(SO4)2(OH)6
O Limonite(Fe,O,OH,H2O)
O MelanteriteFe2+(H2O)6SO4 · H2O
O PyrolusiteMn4+O2
O SideriteFeCO3
O SmithsoniteZnCO3
SSulfur
S AnglesitePbSO4
S CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
S FibroferriteFe3+(SO4)(OH) · 5H2O
S GalenaPbS
S GoslariteZnSO4 · 7H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S MelanteriteFe2+(H2O)6SO4 · H2O
S PyriteFeS2
S SulphurS8
KPotassium
K JarositeKFe3+ 3(SO4)2(OH)6
MnManganese
Mn PyrolusiteMn4+O2
FeIron
Fe CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
Fe FibroferriteFe3+(SO4)(OH) · 5H2O
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe Limonite(Fe,O,OH,H2O)
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe PyriteFeS2
Fe SideriteFeCO3
ZnZinc
Zn GoslariteZnSO4 · 7H2O
Zn SmithsoniteZnCO3
PbLead
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb GalenaPbS

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: 2899970
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]

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


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