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Cherokee Mine (School property; Old Tennessee Mine), Copperhill (Isabella; McCays; McKay), Ducktown District, Polk Co., Tennessee, USA

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Latitude & Longitude (WGS84): 35° 0' 32'' North , 84° 23' 41'' West
Latitude & Longitude (decimal): 35.00889,-84.39472
GeoHash:G#: dn5zpt1ts
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate


A former Fe-Cu-S-Pb-Au-Ag-Zn occurrence/mine located 2.3 km (1.5 miles) NW of Copperhill (coordinates of record).

Development Status: Producer

Host Rock Unit: Graywackes And Graywacke Schists In The Footwall, Great Smoky Group, Biotite-Sericite Schists In The Hanging Wall

Structure: A NW-trending Fault Horizontally Offset The Ore Body By Some 250 Feet., Northeastward-Plunging Anticlines.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Albite-Anorthite Series'
Reference: Econ Geol (1980) 75:1010-1021
'Biotite'
Reference: Econ Geol (1980) 75:329-339; Econ Geol (1980) 75:1010-1021
Calcite
Formula: CaCO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:1010-1021
'Chlorite Group'
Reference: Econ Geol (1980) 75:1010-1021
Diopside
Formula: CaMgSi2O6
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Econ Geol (1980) 75:1010-1021
Gold
Formula: Au
Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia
Graphite
Formula: C
Reference: Econ Geol (1980) 75:1010-1021
Hedenbergite
Formula: CaFe2+Si2O6
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Ilmenite
Formula: Fe2+TiO3
Reference: Econ Geol (1980) 75:1010-1021
Magnetite
Formula: Fe2+Fe3+2O4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:1010-1021
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Econ Geol (1980) 75:1010-1021
Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:1010-1021
Pyrrhotite
Formula: Fe7S8
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:1010-1021
Quartz
Formula: SiO2
Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia
Rutile
Formula: TiO2
Reference: Econ Geol (1980) 75:1010-1021
Silver
Formula: Ag
Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia
Sphalerite
Formula: ZnS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:1010-1021
Titanite
Formula: CaTi(SiO4)O
Reference: Econ Geol (1980) 75:1010-1021
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Gold'1.AA.05Au
'Graphite'1.CB.05aC
'Silver'1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
'Sphalerite'2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Ilmenite'4.CB.05Fe2+TiO3
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Quartz'4.DA.05SiO2
'Rutile'4.DB.05TiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 9 - Silicates
'Actinolite'9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Diopside'9.DA.15CaMgSi2O6
'Hedenbergite'9.DA.15CaFe2+Si2O6
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
'Staurolite'9.AF.30Fe2+2Al9Si4O23(OH)
'Titanite'9.AG.15CaTi(SiO4)O
'Tremolite'9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver1.1.1.2Ag
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
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
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Albite-Anorthite Series'-
'Biotite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H StauroliteFe22+Al9Si4O23(OH)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
CCarbon
C CalciteCaCO3
C GraphiteC
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O CalciteCaCO3
O DiopsideCaMgSi2O6
O Garnet GroupX3Z2(SiO4)3
O HedenbergiteCaFe2+Si2O6
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O StauroliteFe22+Al9Si4O23(OH)
O TitaniteCaTi(SiO4)O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DiopsideCaMgSi2O6
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si DiopsideCaMgSi2O6
Si Garnet GroupX3Z2(SiO4)3
Si HedenbergiteCaFe2+Si2O6
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si StauroliteFe22+Al9Si4O23(OH)
Si TitaniteCaTi(SiO4)O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca HedenbergiteCaFe2+Si2O6
Ca TitaniteCaTi(SiO4)O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ChalcopyriteCuFeS2
Fe HedenbergiteCaFe2+Si2O6
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe StauroliteFe22+Al9Si4O23(OH)
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag SilverAg
AuGold
Au GoldAu
PbLead
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

Neoproterozoic
541 - 1000 Ma



ID: 3187374
Neoproterozoic sedimentary rocks

Age: Neoproterozoic (541 - 1000 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]

Precambrian
541 - 4000 Ma



ID: 2958204
Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone

Age: Precambrian (541 - 4000 Ma)

Stratigraphic Name: Anakeesta Formation; Thunderhead Sandstone; Elkmont Sandstone

Description: Great Smoky Group - Characterized by very massive layers of coarse graywacke and arkose. The formations have been mapped only in the region of the Great Smoky Mountains. Near Ducktown, in ascending order, the Copperhill, Hughes Gap, Hothouse, and Dean Formations are recognized. Thickness 14,000 to about 40,000 feet. Includes Anakeesta Formation - Dark-gray, bluish-gray, and black slate with dark-gray interbeds of fine-grained sandstone. Thickness 3,000 to 4,500 feet; Thunderhead Sandstone - Coarse, gray feldspathic sandstone, graywacke, and conglomerate; occurs in massive ledges; graded bedding and blue quartz characteristic. Thickness 5,500 to 6,300 feet; Elkmont Sandstone - Coarse to fine, gray feldspathic sandstone, graywacke, and fine conglomerate; generally finer grained beds in lower part; graded bedding typical. Thickness 1,000 to 8,000 feet.

Comments: East-Central sheet Original map source: Greene, D.C., and Wolfe, W.J., 2000, Superfund GIS - 1:250,000 Geology of Tennessee, USGS, (geo250k).

Lithology: Major:{graywacke}, Minor:{conglomerate,arkose,sandstone,slate}

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
KINKEL, A. A., AND OTHERS (1968), COPPER AND SULFUR, IN MINERAL RESOURCES OF THE APPALACHIAN REGION: U.S. GEOL. SURVEY PROF. PAPER 580, P. 377-385.
BEALL, J. W. (1973), COPPER IN THE U. S. - A POSITION SURVEY MINING ENGINEERING: SOC. MINING ENGINEERS, V. 25, NO. 4, P.
EMMONS, W. H., AND LANEY, F. B. (1926), GEOLOGY AND ORE DEPOSITS OF THE DUCKTOWN MININ......
Economic Geology (1980): 75: 329-339.
Economic Geology (1980): 75: 1010-1021.


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