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Marquette Co., Michigan, USAi
Regional Level Types
Marquette Co.County
MichiganState
USACountry

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Key
Locality type:
Largest Settlements:
PlacePopulation
Marquette21,297 (2017)
Ishpeming6,483 (2017)
Negaunee4,582 (2017)
West Ishpeming2,662 (2017)
K. I. Sawyer Air Force Base2,624 (2017)
Trowbridge Park2,176 (2017)
Other Languages:
French:
comté de Marquette, Michigan, États-Unis
German:
Marquette County, Michigan, Vereinigte Staaten
Italian:
contea di Marquette, Michigan, Stati Uniti d'America
Russian:
Маркетт, Мичиган, Соединённые Штаты Америки
Simplified Chinese:
馬凱特縣, 密歇根州, 美国
Spanish:
Condado de Marquette, Míchigan, Estados Unidos
Albanian:
Marquette County, Michigan, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة ماركويت, ميشيغان, الولايات المتحدة
Armenian:
Մարքետ շրջան, Միչիգան, Ամերիկայի Միացյալ Նահանգներ
Basque:
Marquette konderria , Michigan
Bavarian:
Marquette County, Michigan, Vaoanigte Stootn
Bishnupriya Manipuri:
মারকুয়েটে কাউন্টি, মিশিগান, তিলপারাষ্ট্র
Bulgarian:
Маркет, Мичиган, Съединени американски щати
Cebuano:
Marquette County , Michigan
Czech:
Marquette County, Michigan, Spojené státy americké
Dutch:
Marquette County, Michigan, Verenigde Staten
Esperanto:
Kantono Marketo, Miĉigano
Estonian:
Marquette'i maakond, Michigan, Ameerika Ühendriigid
Farsi/Persian:
شهرستان مارکت، میشیگان, میشیگان, ایالات متحده آمریکا
Galician:
Condado de Marquette, Míchigan, Estados Unidos de América
Georgian:
მარკეტის ოლქი, მიჩიგანის შტატი, ამერიკის შეერთებული შტატები
Hebrew:
מחוז מרקט, מישיגן, ארצות הברית
Hungarian:
Marquette megye, Michigan, Amerikai Egyesült Államok
Japanese:
マーケット郡, ミシガン州, アメリカ合衆国
Latin:
Marquette Comitatus, Michigania, Civitates Foederatae Americae
Low Saxon/Low German:
Marquette County, Michigan, USA
Min Dong Chinese:
Marquette Gông, Michigan
Minnan / Hokkien-Taiwanese:
Marquette Kūn
Norwegian:
Marquette County, Michigan, USA
Polish:
Hrabstwo Marquette, Michigan, Stany Zjednoczone
Portuguese:
Condado de Marquette, Michigan, Estados Unidos
Romanian:
Comitatul Marquette, Michigan, Statele Unite ale Americii
Sardinian:
contea de Marquette, Michigan, Istados Unidos de Amèrica
Scottish Gaelic:
Marquette County, Michigan, Na Stàitean Aonaichte
Serbian:
Округ Маркет, Мичиген, Сједињене Америчке Државе
Serbo-Croatian:
Marquette County, Michigan, Sjedinjene Američke Države
Swedish:
Marquette County, Michigan, USA
Traditional Chinese:
馬凱特縣, 密芝根州, 美國
Turkish:
Marquette County, Michigan, Amerika Birleşik Devletleri
Ukrainian:
Маркетт, Мічиган, Сполучені Штати Америки
Urdu:
مارکوئٹ کاؤنٹی، مشی گن, مشی گن, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Marquette, Michigan, Chủng Quốc Hoa Kỳ
Waray:
Condado han Marquette, Michigan, Estados Unidos
Western Punjabi:
مارکؤٹ کاؤنٹی, مشیگن, امریکہ


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Select Mineral List Type

Standard Detailed Gallery Strunz Dana 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

181 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:

Actinolite
Formula: ☐Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Localities: Reported from at least 9 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Aegirine
Formula: NaFe3+Si2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Aeschynite-(Y)
Formula: (Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson; Snelgrove, A. K., W.A. Seaman and V.L. Ayres (1943), Mich. Geol. Survey Progr. Rept.
Albite
Formula: Na(AlSi3O8)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
'Albite-Anorthite Series'
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 12 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Anatase
Formula: TiO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Andalusite
Formula: Al2(SiO4)O
Localities: Reported from at least 7 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Anglesite
Formula: PbSO4
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Anhydrite
Formula: CaSO4
Reference: Rocks & Min.:58:111 & 61:328.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 9 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Rocks & Min.: 58:112.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Localities: Reported from at least 21 localities in this region.
Reference: Rocks & Min.:58:111.
'Apatite var. Collophane'
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Aphrosiderite'
Formula: (Fe,Mg,Al)6(Si,Al)4O10(OH)8
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Aragonite
Formula: CaCO3
Reference: Rocks & Min.: 58:112.
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 10 localities in this region.
Reference: Rocks & Min.:58:112.
'Asbestos' ?
Reference: Jerome Waldron photo
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Axinite Group'
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Axinite-(Mg)
Formula: Ca2MgAl2BSi4O15OH
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Baddeleyite
Formula: ZrO2
Reference: Good, D., Borysenko, J., McBride, J., Walford, P., Smyk, M., Hollings, P., ... & Corkery, J. (2010) Cu-Ni-PGE Deposits in Mafic Intrusions of the Lake Superior Region June 24-30, 2010. 11th International Platinum Symposium
Baryte
Formula: BaSO4
Localities: Reported from at least 11 localities in this region.
Reference: Rocks & Min.:58:111.
Bassetite
Formula: Fe2+(UO2)2(PO4)2 · 10H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Bastnäsite' ?
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Bastnäsite-(Ce)
Formula: Ce(CO3)F
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Bastnäsite-(Y)
Formula: Y(CO3)F
Reference: http://www.museum.mtu.edu//news/Mineralogy%20of%20Michigan%20Update%20April%202013.pdf by Robinson, G.W. and Carlson, S.M.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Betafite Group'
Formula: A2(Ti,Nb)2O6Z
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Localities: Reported from at least 20 localities in this region.
Reference: Rocks & Min.:58:111.
Bismuth
Formula: Bi
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Bismuthinite
Formula: Bi2S3
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Bornite
Formula: Cu5FeS4
Localities: Reported from at least 8 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Brannerite
Formula: UTi2O6
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Bravoite'
Formula: (Fe,Ni)S2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Britholite-(Y)
Formula: (Y,Ca)5(SiO4)3OH
Description: Microcrystals within anhedral fluorite
Reference: "Mines and Minerals of Michigan's Iron Country," Ramon S. Demark. Rocks & Minerals, March 2000.
Brucite
Formula: Mg(OH)2
Reference: Rocks & Min.: 58:112.
Calcite
Formula: CaCO3
Localities: Reported from at least 36 localities in this region.
Reference: Dana 6:1087.
Calcite var. Manganese-bearing Calcite
Formula: (Ca,Mn)CO3
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Cassiterite
Formula: SnO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Celestine
Formula: SrSO4
Reference: Rocks & Min.: 58:112.
Cerussite
Formula: PbCO3
Reference: Shawn Carlson (2010) Mineral News, 26, #11, 1-2 & 9-10.
Chalcocite
Formula: Cu2S
Localities: Reported from at least 7 localities in this region.
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 38 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Localities: Reported from at least 6 localities in this region.
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Cheralite
Formula: CaTh(PO4)2
Reference: Rebecca A. Simmons (2009) "Minerals of the Grizzly Pegmatite, Marquette County, Michigan", Mineral News, 25, #4, 1 & 12-13.
'Chlorite Group'
Localities: Reported from at least 31 localities in this region.
Reference: Dave Maietta
'Chlorite Group var. Brunsvigite'
Formula: (Fe2+,Mg,Al)6(Si,Al)4O10(OH)8
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Chloritoid
Formula: (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Localities: Reported from at least 14 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Chloritoid var. Masonite
Formula: (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Reference: Tony Nikischer
Chromite
Formula: Fe2+Cr3+2O4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Rocks & Min.: 58:112.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Clinochlore var. Diabantite
Formula: (Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Clinochlore var. Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Reference: Rocks & Min.:58:111 & 61:328.
Clino-suenoite
Formula: □{Mn2+2}{Mg5}(Si8O22)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Columbite-(Fe)
Formula: Fe2+Nb2O6
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Copper
Formula: Cu
Localities: Reported from at least 7 localities in this region.
Reference: Rocks & Min.: 58:111.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Corundum
Formula: Al2O3
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Cosalite
Formula: Pb2Bi2S5
Reference: Travis Olds collection
Covellite
Formula: CuS
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Cubanite
Formula: CuFe2S3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Cummingtonite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: Rocks & Min.:58:111 & 61:328.
Datolite
Formula: CaB(SiO4)(OH)
Reference: Dana 6: 505.
Dickite
Formula: Al2(Si2O5)(OH)4
Reference: Rocks & Min.:58:112.
Digenite
Formula: Cu9S5
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Diopside
Formula: CaMgSi2O6
Reference: Rocks & Min.:58:111 & 61:328.
Diopside var. Schefferite
Formula: (Ca,Mn)(Mg,Fe,Mn)Si2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 30 localities in this region.
Reference: Rocks & Min.:65:407.
Dolomite var. Iron-bearing Dolomite
Formula: Ca(Mg,Fe)(CO3)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Dyscrasite
Formula: Ag3Sb
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Enstatite
Formula: Mg2Si2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Enstatite var. Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 15 localities in this region.
Reference: Yalmer Primeau collection
Euclase
Formula: BeAl(SiO4)(OH)
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Fassinaite
Formula: Pb2(S2O3)(CO3)
Reference: Travis Olds collection
'Faujasite'
Formula: (Na2/Ca/Mg)3 · 5[Al7Si17O48] · 32H2O
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Fayalite
Formula: Fe2+2SiO4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Fayalite-Forsterite Series'
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Ferro-hornblende
Formula: ☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Reference: Rocks & Min.: 58:112.
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Travis Olds
Fluorite
Formula: CaF2
Localities: Reported from at least 8 localities in this region.
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Fluorite var. Chlorophane
Formula: CaF2
Fluorescence: green
Description: Thermoluminescent
Reference: Dan Fountain Collection
Fluorite var. Yttrofluorite
Formula: (Ca1-xYx)F2+x where 0.05< x
Reference: http://www.museum.mtu.edu//news/Mineralogy%20of%20Michigan%20Update%20April%202013.pdf by Robinson, G.W. and Carlson, S.M.
Forsterite
Formula: Mg2SiO4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Galena
Formula: PbS
Localities: Reported from at least 24 localities in this region.
Reference: Rocks & Min.: 58:111.
Galenobismutite
Formula: PbBi2S4
Reference: Dan Fountain Collection
'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.:58:111.
Gersdorffite
Formula: NiAsS
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Gibbsite
Formula: Al(OH)3
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
'Glauconite'
Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Goethite
Formula: α-Fe3+O(OH)
Localities: Reported from at least 100 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Gold
Formula: Au
Localities: Reported from at least 51 localities in this region.
Reference: Rocks & Min.:58:112.
Gold var. Electrum
Formula: (Au,Ag)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Graphite
Formula: C
Localities: Reported from at least 11 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Grayite
Formula: (Th,Pb,Ca)(PO4) · H2O
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Greenalite
Formula: (Fe2+,Fe3+)2-3Si2O5(OH)4
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Grunerite
Formula: ☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Localities: Reported from at least 22 localities in this region.
Reference: Dave Maietta
Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 11 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Gypsum var. Selenite
Formula: CaSO4 · 2H2O
Reference: Dana 6: 1086.
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Hausmannite
Formula: Mn2+Mn3+2O4
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Hematite
Formula: Fe2O3
Localities: Reported from at least 115 localities in this region.
Reference: www.marquette.org/Travel/rockhounding.htm
Hematite var. Martite
Formula: Fe2O3
Localities: Reported from at least 8 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Hematite var. Specularite
Formula: Fe2O3
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Hessite
Formula: Ag2Te
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Hexahydrite
Formula: MgSO4 · 6H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Hornblende'
Localities: Reported from at least 10 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Hydrocerussite
Formula: Pb3(CO3)2(OH)2
Reference: Shawn Carlson (2010) Mineral News, 26, #11, 1-2 & 9-10.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Fluorescence: Blue-white in SW
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Hypersthene'
Formula: (Mg,Fe)SiO3
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 7 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Jacobsite
Formula: Mn2+Fe3+2O4
Reference: Rocks & Min.:58:111 & 61:328.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Localities: Reported from at least 10 localities in this region.
Reference: Rocks & Min.:58:112.
'K Feldspar'
Localities: Reported from at least 8 localities in this region.
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'K Feldspar var. Adularia'
Formula: KAlSi3O8
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Kochkarite
Formula: PbBi4Te7
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Kutnohorite
Formula: CaMn2+(CO3)2
Reference: Rocks & Min.:58:111 & 61:328.
Kyanite ?
Formula: Al2(SiO4)O
Description: May all be corundum
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Reed, R. C. (1967a) Copper mineralization in Animikie sediments of the eastern Marquette Range, Michigan (abstract). 13th Annual Institute Lake Superior Geology, 34-35.
'Leucoxene'
Reference: Snelgrove, A.K., W.A. Seaman and V.L. Ayres (1944) Strategic Minerals Investigation in Marquette and Baraga Counties 1943. Michigan Geological Survey Progress Report 10
'Limonite'
Formula: (Fe,O,OH,H2O)
Localities: Reported from at least 9 localities in this region.
Reference: Dave Maietta
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Mackinawite
Formula: (Fe,Ni)9S8
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 110 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 10 localities in this region.
Reference: Rocks & Min.: 58:112.
'Manganese Oxides'
Reference: Dan Fountain Collection
'Manganese Oxides var. Manganese Dendrites'
Reference: Dan Fountain Collection
Manganite
Formula: Mn3+O(OH)
Localities: Reported from at least 10 localities in this region.
Reference: Rocks & Min.:58:111.
Marcasite
Formula: FeS2
Localities: Reported from at least 7 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Margarite
Formula: CaAl2(Al2Si2O10)(OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Mica Group'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 13 localities in this region.
Reference: Rocks & Min.: 58:112.
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Millerite
Formula: NiS
Reference: George W. Robinson and S.M. Carlson (2009) What's New in Michigan Minerals. Presentation at The 36th Rochester Mineralogical Symposium, April 23-26, 2009.
Mimetite
Formula: Pb5(AsO4)3Cl
Reference: Shawn Carlson (2010) Mineral News, 26, #11, 1-2 & 9-10.
Minnesotaite
Formula: Fe2+3Si4O10(OH)2
Reference: Rocks & Min.:58:111 & 61:328.
Molybdenite
Formula: MoS2
Localities: Reported from at least 12 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
'Monazite'
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Monazite-(Ce)
Formula: Ce(PO4)
Localities: Reported from at least 10 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Monohydrocalcite
Formula: CaCO3 · H2O
Reference: George W. Robinson and S.M. Carlson (2009) What's New in Michigan Minerals. Presentation at The 36th Rochester Mineralogical Symposium, April 23-26, 2009.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 24 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 11 localities in this region.
Reference: Gems and Minerals of America- Jay Ellis Ransom-1974
Nacrite
Formula: Al2(Si2O5)(OH)4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Neotocite
Formula: (Mn,Fe,Mg)SiO3 · H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Nickeline
Formula: NiAs
Reference: Robert C. Smith, II Ph.D, P.G.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Orthoclase
Formula: K(AlSi3O8)
Localities: Reported from at least 7 localities in this region.
Reference: Dave Maietta
Paragonite
Formula: NaAl2(AlSi3O10)(OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Pecoraite
Formula: Ni3(Si2O5)(OH)4
Reference: George W. Robinson and S.M. Carlson (2009) What's New in Michigan Minerals. Presentation at The 36th Rochester Mineralogical Symposium, April 23-26, 2009.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Powellite
Formula: Ca(MoO4)
Reference: Rocks & Min.:58:111 & 61:328.
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Psilomelane'
Formula: Mn, O
Reference: Rocks & Min.:58:112.
Pyrite
Formula: FeS2
Localities: Reported from at least 49 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Pyrolusite
Formula: Mn4+O2
Reference: Rocks & Min.:58:112.
Pyrophyllite
Formula: Al2Si4O10(OH)2
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Pyrostilpnite
Formula: Ag3SbS3
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Pyroxmangite
Formula: MnSiO3
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Pyrrhotite
Formula: Fe1-xS
Localities: Reported from at least 12 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Quartz
Formula: SiO2
Localities: Reported from at least 168 localities in this region.
Habit: To 25cm
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Quartz var. Agate
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Quartz var. Amethyst
Formula: SiO2
Reference: Rocks & Min.:58:111.
Quartz var. Chalcedony
Formula: SiO2
Reference: Gems and Minerals of America- Jay Ellis Ransom-1974
Quartz var. Jasper
Localities: Reported from at least 6 localities in this region.
Reference: www.marquette.org/Travel/rockhounding.htm
Quartz var. Milky Quartz
Formula: SiO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Quartz var. Smoky Quartz
Formula: SiO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Rhodochrosite
Formula: MnCO3
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Rhodonite
Formula: CaMn3Mn[Si5O15]
Reference: Rocks & Min.:58:111 & 61:328.
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.:58:111.
Romanèchite
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Rutile
Formula: TiO2
Localities: Reported from at least 9 localities in this region.
Reference: Dave Maietta
Samarskite-(Y)
Formula: YFe3+Nb2O8
Reference: Travis Olds collection
Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 7 localities in this region.
Reference: Rocks & Min.: 58:112.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Seamanite
Formula: Mn2+3[B(OH)4](PO4)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Reference: Identified and verified by SEM/EDS and XRD by George Robinson 2010
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Localities: Reported from at least 6 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Serpentine Subgroup var. Picrolite'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Shungite'
Reference: ID based on Raman spectrum by J. A. Jaszczak
Siderite
Formula: FeCO3
Localities: Reported from at least 20 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Siderite var. Manganese-bearing Siderite ?
Formula: (Fe,Mn)CO3
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Sillimanite
Formula: Al2(SiO4)O
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Silver
Formula: Ag
Localities: Reported from at least 9 localities in this region.
Reference: Rocks & Min.: 58:111.
Smithsonite
Formula: ZnCO3
Fluorescence: Rose red in SW
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Rocks & Min.:58:111 & 61:328.
Sphalerite
Formula: ZnS
Localities: Reported from at least 19 localities in this region.
Reference: Rocks & Min.: 58:111.
Spinel
Formula: MgAl2O4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Spodumene
Formula: LiAlSi2O6
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Starkeyite
Formula: MgSO4 · 4H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Stilpnomelane
Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Reference: Rocks & Min.:58:111.
Sudoite
Formula: Mg2Al3(Si3Al)O10)(OH)8
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Bailey, S. W., & Lister, J. S. (1989). Structures, compositions, and X-ray diffraction identification of dioctahedral chlorites. Clays and Clay Minerals, 37(3), 193-202.
Sulphur
Formula: S8
Reference: Travis Olds collection
Synchysite-(Ce) ?
Formula: CaCe(CO3)2F
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Synchysite-(Y)
Formula: CaY(CO3)2F
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Talc
Formula: Mg3Si4O10(OH)2
Localities: Reported from at least 13 localities in this region.
Reference: Rocks & Min.:58:111 & 61:328.
Talc var. Beaconite
Formula: Mg3Si4O10(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Talc var. Steatite
Formula: Mg3(Si4O10)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Tanteuxenite-(Y)
Formula: Y(Ta,Nb,Ti)2(O,OH)6
Reference: Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
Tellurium
Formula: Te
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Tellurobismuthite
Formula: Bi2Te3
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4X2+2)Sb4S12S
Localities: Reported from at least 6 localities in this region.
Reference: Rocks & Min.: 58:111.
'Tetrahedrite Subgroup var. Argentian Tetrahedrite'
Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
Description: Collected by Travis Olds 2008
Reference: Travis Olds Collection
Thermonatrite
Formula: Na2CO3 · H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Thorite
Formula: Th(SiO4)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Titanite
Formula: CaTi(SiO4)O
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Localities: Reported from at least 21 localities in this region.
Reference: www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Localities: Reported from at least 9 localities in this region.
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Trona
Formula: Na3H(CO3)2 · 2H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Tsumoite
Formula: BiTe
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Uraninite
Formula: UO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Uraninite var. Thorian Uraninite
Formula: (U,Th)O2
Reference: Travis Olds collection
Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Violarite
Formula: Fe2+Ni3+2S4
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Volynskite
Formula: AgBiTe2
Reference: Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Wroewolfeite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Wurtzite
Formula: (Zn,Fe)S
Reference: George W. Robinson and S.M. Carlson (2009) What's New in Michigan Minerals. Presentation at The 36th Rochester Mineralogical Symposium, April 23-26, 2009.
Xenotime-(Y)
Formula: Y(PO4)
Description: Yb-rich. Microcrystals within anhedral fluorite
Reference: "Mines and Minerals of Michigan's Iron Country," Ramon S. Demark. Rocks & Minerals, March 2000.
Xilingolite
Formula: Pb3Bi2S6
Reference: Travis Olds collection
Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 6 localities in this region.
Reference: Johnson, Carol A.(1977)Uranium and thorium occurrences in Precambrian rocks, Upper Peninsula of Michigan (Masters Thesis, Michigan Technological University)

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