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Grummett prospect, Greenwood, Marquette Co., Michigan, USAi
Regional Level Types
Grummett prospectProspect
Greenwood- not defined -
Marquette Co.County
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 31' 4'' North , 87° 45' 8'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
West Ishpeming2,662 (2017)5.5km
Ishpeming6,483 (2017)7.3km
Negaunee4,582 (2017)11.0km
Palmer418 (2017)14.9km
Republic570 (2017)21.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Ishpeming Rock and Mineral ClubIshpeming, Michigan7km


A gold mine/prospect located in the NE 1/4 of the NW 1/4 of Section 36. T48N R28W.

Explored 1887-1889.

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


12 valid minerals.

Detailed Mineral List:

β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
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
β“˜ Calcite
Formula: CaCO3
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
β“˜ Chalcopyrite
Formula: CuFeS2
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
β“˜ 'Chlorite Group'
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
β“˜ Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
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
β“˜ Gold
Formula: Au
Reference: Rocks & Min.: 58: 112; Mineralogy of Michigan (2004) Heinrich & Robinson
β“˜ '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
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
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
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
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
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
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
β“˜ Pyrite
Formula: FeS2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
β“˜ Quartz
Formula: SiO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
β“˜ Scheelite
Formula: Ca(WO4)
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
β“˜ Titanite
Formula: CaTi(SiO4)O
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
β“˜ Tremolite
Formula: ◻{Ca2}{Mg5}(Si8O22)(OH)2
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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
β“˜Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Tremolite9.DE.10β—»{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
β“˜'Chlorite Group'-
β“˜'Leucoxene'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2
Hβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ CalciteCaCO3
OOxygen
Oβ“˜ QuartzSiO2
Oβ“˜ ScheeliteCa(WO4)
Oβ“˜ Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ CalciteCaCO3
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mgβ“˜ Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Alβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ QuartzSiO2
Siβ“˜ Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2
Siβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
Sβ“˜ PyriteFeS2
Sβ“˜ ChalcopyriteCuFeS2
KPotassium
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ ScheeliteCa(WO4)
Caβ“˜ Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ CalciteCaCO3
TiTitanium
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ PyriteFeS2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Feβ“˜ MagnetiteFe2+Fe23+O4
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
WTungsten
Wβ“˜ ScheeliteCa(WO4)
AuGold
Auβ“˜ GoldAu

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Snelgrove, A.K., Seaman, W.A., Ayres, V.L. (1944) Strategic Minerals Investigations in Marquette and Baraga Counties, 1943. Michigan Geological Survey Progress Report 10. 42 pages.
Fountain, D.R. (2013) Michigan Gold and Silver: Mining in the Upper Peninsula, Lake Superior Port Cities, Duluth, Minnesota. 243 pages.
Robinson, G.W. (2004) Mineralogy of Michigan by E.W. Heinrich (2nd edition). A.E. Seaman Mineral Museum, Michigan Technological University, Houghton, Michigan. 252 pages.
Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 112.

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