Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Duluth Complex, Minnesota, USAi
Regional Level Types
Duluth ComplexComplex
MinnesotaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosSearch
03417090017064134159128.jpg
Haycockite, etc.

Duluth Complex, Minnesota, USA
00383010014947531879596.jpg
Hibbingite

Hibbingite occurrences, Lake County, Minnesota, USA
01810790015675131264984.jpg
Hibbingite

Hibbingite occurrences, Lake County, Minnesota, USA
06319000017056649349135.jpg
Haycockite, etc.

Duluth Complex, Minnesota, USA
00383010014947531879596.jpg
Hibbingite

Hibbingite occurrences, Lake County, Minnesota, USA
01322160017068112131282.jpg
Hibbingite

Hibbingite occurrences, Lake County, Minnesota, USA
03417090017064134159128.jpg
Haycockite, etc.

Duluth Complex, Minnesota, USA
00383010014947531879596.jpg
Hibbingite

Hibbingite occurrences, Lake County, Minnesota, USA
Latitude & Longitude (WGS84):
47° North , 91° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~81km
GRN:
N32W46
Type:
Complex
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
7919
Long-form identifier:
mindat:1:2:7919:1
GUID (UUID V4):
94c1de65-fecc-442c-861a-b1e45f2bb399
Other/historical names associated with this locality:
Duluth Gabbro


[= Duluth Complex?]
Intrusive rocks formed about 1.1 billion years ago during the Midcontinent Rift.

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

49 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Akaganeite
Formula: (Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
β“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜ 'Amphibole Supergroup var. Uralite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Bismuth
Formula: Bi
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 6 localities in this region.
β“˜ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜ 'Chlorite Group'
β“˜ Cobaltite
Formula: CoAsS
β“˜ Copper
Formula: Cu
β“˜ Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
β“˜ Covellite
Formula: CuS
β“˜ Cubanite
Formula: CuFe2S3
β“˜ Cuprorhodsite
Formula: (Cu1+0.5Fe3+0.5)Rh3+2S4
References:
Bart Cannon SEM analysisIdentification: SEM-EDS
β“˜ Digenite
Formula: Cu9S5
β“˜ Fayalite
Formula: Fe2+2SiO4
β“˜ 'Fayalite-Forsterite Series'
β“˜ Forsterite
Formula: Mg2SiO4
β“˜ Galena
Formula: PbS
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Gersdorffite
Formula: NiAsS
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Graphite
Formula: C
β“˜ Haycockite
Formula: Cu4Fe5S8
β“˜ Hibbingite (TL)
Formula: Fe2+2(OH)3Cl
Type Locality:
β“˜ Hisingerite
Formula: Fe3+2(Si2O5)(OH)4 · 2H2O
β“˜ Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 10 localities in this region.
β“˜ Lizardite
Formula: Mg3(Si2O5)(OH)4
β“˜ LΓΆllingite
Formula: FeAs2
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 13 localities in this region.
β“˜ Marcasite
Formula: FeS2
β“˜ Maucherite
Formula: Ni11As8
β“˜ 'Monazite' ?
Formula: REE(PO4)
β“˜ Mooihoekite
Formula: Cu9Fe9S16
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Nickeline
Formula: NiAs
β“˜ 'Olivine Group'
Formula: M2SiO4
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
β“˜ Prehnite
Formula: Ca2Al2Si3O10(OH)2
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrite var. Bravoite
Formula: (Fe,Ni)S2
β“˜ 'Pyroxene Group'
Formula: ADSi2O6
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Rammelsbergite
Formula: NiAs2
β“˜ Romarchite
Formula: SnO
β“˜ Safflorite
Formula: (Co,Ni,Fe)As2
β“˜ Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ Silver
Formula: Ag
β“˜ Sperrylite
Formula: PtAs2
β“˜ Sphalerite
Formula: ZnS
β“˜ Stibiopalladinite
Formula: Pd5Sb2
β“˜ Tetradymite
Formula: Bi2Te2S
β“˜ Troilite
Formula: FeS
β“˜ Uraninite
Formula: UO2
β“˜ Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Description: with uraninite and galena
β“˜ Yarrowite
Formula: Cu9S8

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
β“˜Silver1.AA.05Ag
β“˜Bismuth1.CA.05Bi
β“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
β“˜Maucherite2.AB.15Ni11As8
β“˜Stibiopalladinite2.AC.20aPd5Sb2
β“˜Digenite2.BA.10Cu9S5
β“˜Bornite2.BA.15Cu5FeS4
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Covellite2.CA.05aCuS
β“˜Yarrowite2.CA.05dCu9S8
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Haycockite2.CB.10bCu4Fe5S8
β“˜Mooihoekite2.CB.10bCu9Fe9S16
β“˜Cubanite2.CB.55aCuFe2S3
β“˜Nickeline2.CC.05NiAs
β“˜Troilite2.CC.10FeS
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Galena2.CD.10PbS
β“˜Cuprorhodsite2.DA.05(Cu1+0.5Fe3+0.5)Rh3+2S4
β“˜Tetradymite2.DC.05Bi2Te2S
β“˜Sperrylite2.EB.05aPtAs2
β“˜Pyrite2.EB.05aFeS2
β“˜var. Bravoite2.EB.05a(Fe,Ni)S2
β“˜Marcasite2.EB.10aFeS2
β“˜LΓΆllingite2.EB.15aFeAs2
β“˜Safflorite2.EB.15a(Co,Ni,Fe)As2
β“˜Rammelsbergite2.EB.15aNiAs2
β“˜Gersdorffite2.EB.25NiAsS
β“˜Cobaltite2.EB.25CoAsS
Group 3 - Halides
β“˜Hibbingite (TL)3.DA.10aFe2+2(OH)3Cl
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Romarchite4.AC.20SnO
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Akaganeite4.DK.05(Fe3+,Ni2+)8(OH,O)16Cl1.25 Β· nH2O
β“˜Uraninite4.DL.05UO2
Group 9 - Silicates
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Fayalite9.AC.05Fe2+2SiO4
β“˜Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 Β· 5H2O
β“˜Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
β“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Prehnite9.DP.20Ca2Al2Si3O10(OH)2
β“˜Muscovite
var. Sericite		9.EC.15KAl2(AlSi3O10)(OH)2
β“˜9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 Β· nH2O
β“˜Chamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜Hisingerite9.ED.10Fe3+2(Si2O5)(OH)4 Β· 2H2O
β“˜Lizardite9.ED.15Mg3(Si2O5)(OH)4
Unclassified
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Pyroxene Group'-ADSi2O6
β“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Fayalite-Forsterite Series'-
β“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'var. Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'Chlorite Group'-
β“˜'Monazite' ?-REE(PO4)
β“˜'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Hβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ HibbingiteFe22+(OH)3Cl
Hβ“˜ HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Hβ“˜ LizarditeMg3(Si2O5)(OH)4
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ PrehniteCa2Al2Si3O10(OH)2
Hβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Hβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ GraphiteC
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Oβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Oβ“˜ FayaliteFe22+SiO4
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ HibbingiteFe22+(OH)3Cl
Oβ“˜ HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ LizarditeMg3(Si2O5)(OH)4
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MonaziteREE(PO4)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ PrehniteCa2Al2Si3O10(OH)2
Oβ“˜ RomarchiteSnO
Oβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Oβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ UraniniteUO2
Oβ“˜ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oβ“˜ Pyroxene GroupADSi2O6
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Olivine GroupM2SiO4
FFluorine
Fβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ LizarditeMg3(Si2O5)(OH)4
Mgβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Alβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ PrehniteCa2Al2Si3O10(OH)2
Alβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Alβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Siβ“˜ FayaliteFe22+SiO4
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Siβ“˜ LizarditeMg3(Si2O5)(OH)4
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ PrehniteCa2Al2Si3O10(OH)2
Siβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Siβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siβ“˜ Pyroxene GroupADSi2O6
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Siβ“˜ Olivine GroupM2SiO4
PPhosphorus
Pβ“˜ MonaziteREE(PO4)
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ BorniteCu5FeS4
Sβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ CobaltiteCoAsS
Sβ“˜ CovelliteCuS
Sβ“˜ CubaniteCuFe2S3
Sβ“˜ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Sβ“˜ DigeniteCu9S5
Sβ“˜ GalenaPbS
Sβ“˜ GersdorffiteNiAsS
Sβ“˜ HaycockiteCu4Fe5S8
Sβ“˜ MarcasiteFeS2
Sβ“˜ MooihoekiteCu9Fe9S16
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SphaleriteZnS
Sβ“˜ TetradymiteBi2Te2S
Sβ“˜ TroiliteFeS
Sβ“˜ YarrowiteCu9S8
ClChlorine
Clβ“˜ Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Clβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clβ“˜ HibbingiteFe22+(OH)3Cl
Clβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ PrehniteCa2Al2Si3O10(OH)2
Caβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Caβ“˜ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Caβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ Amphibole Supergroup var. UraliteAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Feβ“˜ CubaniteCuFe2S3
Feβ“˜ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Feβ“˜ FayaliteFe22+SiO4
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ HaycockiteCu4Fe5S8
Feβ“˜ HibbingiteFe22+(OH)3Cl
Feβ“˜ HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ LΓΆllingiteFeAs2
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ MarcasiteFeS2
Feβ“˜ MooihoekiteCu9Fe9S16
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ Safflorite(Co,Ni,Fe)As2
Feβ“˜ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Feβ“˜ TroiliteFeS
CoCobalt
Coβ“˜ CobaltiteCoAsS
Coβ“˜ Safflorite(Co,Ni,Fe)As2
NiNickel
Niβ“˜ Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Niβ“˜ Pyrite var. Bravoite(Fe,Ni)S2
Niβ“˜ GersdorffiteNiAsS
Niβ“˜ MaucheriteNi11As8
Niβ“˜ NickelineNiAs
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
Niβ“˜ RammelsbergiteNiAs2
Niβ“˜ Safflorite(Co,Ni,Fe)As2
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ CovelliteCuS
Cuβ“˜ CubaniteCuFe2S3
Cuβ“˜ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
Cuβ“˜ CopperCu
Cuβ“˜ DigeniteCu9S5
Cuβ“˜ HaycockiteCu4Fe5S8
Cuβ“˜ MooihoekiteCu9Fe9S16
Cuβ“˜ YarrowiteCu9S8
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ CobaltiteCoAsS
Asβ“˜ GersdorffiteNiAsS
Asβ“˜ LΓΆllingiteFeAs2
Asβ“˜ MaucheriteNi11As8
Asβ“˜ NickelineNiAs
Asβ“˜ RammelsbergiteNiAs2
Asβ“˜ Safflorite(Co,Ni,Fe)As2
Asβ“˜ SperrylitePtAs2
RhRhodium
Rhβ“˜ Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh23+S4
PdPalladium
Pdβ“˜ StibiopalladinitePd5Sb2
AgSilver
Agβ“˜ SilverAg
SnTin
Snβ“˜ RomarchiteSnO
SbAntimony
Sbβ“˜ StibiopalladinitePd5Sb2
TeTellurium
Teβ“˜ TetradymiteBi2Te2S
PtPlatinum
Ptβ“˜ SperrylitePtAs2
PbLead
Pbβ“˜ GalenaPbS
BiBismuth
Biβ“˜ BismuthBi
Biβ“˜ TetradymiteBi2Te2S
UUranium
Uβ“˜ UraniniteUO2
Uβ“˜ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate
USA

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

Listerud, W.H., Meineke, D.G. (1977) Mineral resources of a portion of the Duluth Complex and adjacent rocks in St. Louis and Lake counties, northeastern Minnesota. Minnesota Department of Natural Resources, Division of Minerals Mineral Exploration Section, Report 93.
Ripley, E.M. (1986) Applications of stable isotope studies to problems of magmatic sulfide ore genesis with special reference to the Duluth Complex, Minnesota. In: Geology and Metallogeny of Copper Deposits (G.H. Friedrich, A.D. Genkin, A.J. Naldrett, J.D. Ridge, R.H. Sillitoe & F.M. Vokes, editors). Springer-Verlag, Berlin, Germany (25-42).
Hauck, S.A., Severson, M.J., Zanko, L., Barnes, S.J., Morton, P., Alminas, H., ... & Dahlberg, E.H. (1997) An overview of the geology and oxide, sulfide, and platinum-group element mineralization along the western and northern contacts of the Duluth Complex. Special Papers-Geological Society of America: 137-186.
Cook, R. (2000) Connoisseur's Choice: Cubanite. Rocks and Minerals: 75(6): 404.
Tutolo, Benjamin M., Bernard W. Evans, and Scott M. Kuehner. (2019) "Serpentine–Hisingerite Solid Solution in Altered Ferroan Peridotite and Olivine Gabbro" Minerals 9, no. 1: 47. https://doi.org/10.3390/min9010047
Quick NavTopCommoditiesMineral ListRock TypesLocalities in RegionOther RegionsReferences
 
and/or  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are Β© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 9, 2024 18:22:37 Page updated: February 1, 2024 18:13:36
Go to top of page