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Empire Copper Mine (White Knob; Empire Copper Company; Idaho Metals Company), Mackay Mining District (Alder Creek Mining District; White Knob Mining District), Custer County, Idaho, USAi
Regional Level Types
Empire Copper Mine (White Knob; Empire Copper Company; Idaho Metals Company)Mine
Mackay Mining District (Alder Creek Mining District; White Knob Mining District)Mining District
Custer CountyCounty
IdahoState
USACountry

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Latitude & Longitude (WGS84):
43° 53' 25'' North , 113° 40' 31'' West
Latitude & Longitude (decimal):
43.89042,-113.67533
GeoHash:
G#: 9rz1tq00h
GRN:
N30W59
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Mackay476 (2017)5.6km
Moore164 (2017)30.2km
Arco857 (2017)41.3km
Mindat Locality ID:
45472
Long-form identifier:
mindat:1:2:45472:7
GUID (UUID V4):
7291ce24-b74d-41a8-9a71-8561d8e939a3


Cu-Zn skarn deposit. The largest deposit in the Alder Creek mining district.
Located 5.3 km SW of the town of Mackay.
The mine includes surface and underground workings. It was operated between 1902 and 1930 and intermittently since then. Total recorded production between 1902 and 1975 was 921,077 tons of ore. From this were obtained 41,421 ounces of gold, 1,294,531 ounces of silver, 61,689,291 pounds of copper, 24,110 pounds of lead, and 908,078 pounds of zinc (Mitchell, 1997).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


28 valid minerals.

Detailed Mineral List:

ⓘ Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Bornite
Formula: Cu5FeS4
ⓘ 'Calamine'
ⓘ Calcite
Formula: CaCO3
ⓘ Cerussite
Formula: PbCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Copper
Formula: Cu
ⓘ Covellite
Formula: CuS
ⓘ Cuprite
Formula: Cu2O
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Fluorite
Formula: CaF2
ⓘ Galena
Formula: PbS
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Hematite var. Specularite
Formula: Fe2O3
ⓘ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Molybdenite
Formula: MoS2
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Smithsonite
Formula: ZnCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ Tenorite
Formula: CuO
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘCopper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
ⓘTenorite4.AB.10CuO
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite
var. Specularite		4.CB.05Fe2O3
ⓘ4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSmithsonite5.AB.05ZnCO3
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘAurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘHemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
ⓘ'Calamine'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SmithsoniteZnCO3
OOxygen
Oⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ CalciteCaCO3
Oⓘ CerussitePbCO3
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ CupriteCu2O
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ SmithsoniteZnCO3
Oⓘ TenoriteCuO
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Hematite var. SpeculariteFe2O3
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ FluoriteCaF2
AlAluminium
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Siⓘ QuartzSiO2
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CovelliteCuS
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ ScheeliteCa(WO4)
Caⓘ WollastoniteCa3(Si3O9)
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Hematite var. SpeculariteFe2O3
CuCopper
Cuⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CovelliteCuS
Cuⓘ CupriteCu2O
Cuⓘ CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ TenoriteCuO
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Znⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Znⓘ SmithsoniteZnCO3
Znⓘ SphaleriteZnS
MoMolybdenum
Moⓘ MolybdeniteMoS2
SbAntimony
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
WTungsten
Wⓘ ScheeliteCa(WO4)
PbLead
Pbⓘ CerussitePbCO3
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

North America
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

Farwell, F. W., Full, R.P. (1944) Geology of the Empire Copper Mine near Mackay, Idaho. United States Geological Survey Open File Report 44-17. https://pubs.er.usgs.gov/publication/ofr4417
Nelson, W.H., Ross, C.P. (1968) Geology Of Part Of The Alder Creek Mining District, Custer County, Idaho. United States Geological Survey Bulletin 1252-A, 30 pages. https://pubs.usgs.gov/bul/1252a/report.pdf
Mitchell, Victoria (1997) History of Selected Mines in the Alder Creek Mining District, Custer County, Idaho. Idaho Geological Survey Staff Report 97-2. https://www.idahogeology.org/pub/Staff_Reports/1997/S-97-2.pdf
Chang, Z., Meinert, L.D. (2008) The Empire Cu-Zn Mine, Idaho: Exploration Implications of Unusual Skarn Features Related to High Fluorine Activity. Economic Geology: 103(5): 909-938.
mrdata.usgs.gov (n.d.) https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10089294
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