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Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types
Willow Creek Mining DistrictMining District
Matanuska-Susitna BoroughBorough
AlaskaState
USACountry

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PhotosMapsSearch
09670420017272244349008.jpg
Workings of the Fern Mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
09437880017272244358989.jpg
Entrance to Fern mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
08972490017272244366821.jpg
Inside the mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
09670420017272244349008.jpg
Workings of the Fern Mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
09437880017272244358989.jpg
Entrance to Fern mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
08972490017272244366821.jpg
Inside the mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
09670420017272244349008.jpg
Workings of the Fern Mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
09437880017272244358989.jpg
Entrance to Fern mine

Fern Mine, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USA
Latitude & Longitude:
62° North , 149° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~205km
GRN:
N42W52
Type:
Mining District
Mindat Locality ID:
130559
Long-form identifier:
mindat:1:2:130559:6
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

40 valid minerals.

Detailed Mineral List:

ⓘ Altaite
Formula: PbTe
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 10 localities in this region.
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Bornite
Formula: Cu5FeS4
Localities: Reported from at least 9 localities in this region.
ⓘ Brookite ?
Formula: TiO2
References:
USGS Bull 933-C
ⓘ Calcite
Formula: CaCO3
ⓘ Cerussite
Formula: PbCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 30 localities in this region.
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Cinnabar
Formula: HgS
ⓘ Coloradoite
Formula: HgTe
ⓘ Covellite
Formula: CuS
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Galena
Formula: PbS
Localities: Reported from at least 15 localities in this region.
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ 'Limonite'
Localities: Reported from at least 10 localities in this region.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 8 localities in this region.
ⓘ Molybdenite
Formula: MoS2
Localities: Reported from at least 7 localities in this region.
ⓘ Mordenite
Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Nagyágite
Formula: [Pb3(Pb,Sb)3S6](Au,Te)3
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 75 localities in this region.
ⓘ Native Nickel
Formula: Ni
ⓘ Native Platinum
Formula: Pt
ⓘ Native Silver
Formula: Ag
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 34 localities in this region.
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 66 localities in this region.
ⓘ Rutile
Formula: TiO2
References:
USGS Bull 933-C
ⓘ Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 7 localities in this region.
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ 'Soapstone'
ⓘ Sphalerite
Formula: ZnS
Localities: Reported from at least 7 localities in this region.
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Localities: Reported from at least 8 localities in this region.
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
ⓘNative Nickel1.AA.05Ni
ⓘNative Silver1.AA.05Ag
ⓘNative Platinum1.AF.10Pt
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘColoradoite2.CB.05aHgTe
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘAltaite2.CD.10PbTe
ⓘGalena2.CD.10PbS
ⓘCinnabar2.CD.15aHgS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘNagyágite2.HB.20a[Pb3(Pb,Sb)3S6](Au,Te)3
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
ⓘBrookite ?4.DD.10TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
ⓘMordenite9.GD.35(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Limonite'-
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Soapstone'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
BBoron
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BrookiteTiO2
Oⓘ CalciteCaCO3
Oⓘ CerussitePbCO3
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ ZirconZr(SiO4)
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ TalcMg3Si4O10(OH)2
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ ZirconZr(SiO4)
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CinnabarHgS
Sⓘ CovelliteCuS
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ MolybdeniteMoS2
Sⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Kⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Caⓘ ScheeliteCa(WO4)
TiTitanium
Tiⓘ BrookiteTiO2
Tiⓘ RutileTiO2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ ArsenopyriteFeAsS
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
NiNickel
Niⓘ Native NickelNi
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CovelliteCuS
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ Native SilverAg
SbAntimony
Sbⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Teⓘ AltaitePbTe
Teⓘ ColoradoiteHgTe
Teⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
WTungsten
Wⓘ ScheeliteCa(WO4)
PtPlatinum
Ptⓘ Native PlatinumPt
AuGold
Auⓘ Native GoldAu
Auⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
HgMercury
Hgⓘ CinnabarHgS
Hgⓘ ColoradoiteHgTe
PbLead
Pbⓘ AltaitePbTe
Pbⓘ CerussitePbCO3
Pbⓘ GalenaPbS
Pbⓘ Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3

Localities in this Region

USA
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Other Regions, Features and Areas containing this locality

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