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Spurr Mine, Imperial Heights, Baraga County, Michigan, USAi
Regional Level Types
Spurr MineMine
Imperial Heights- not defined -
Baraga CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 32' 27'' North , 88° 8' 2'' West
Latitude & Longitude (decimal):
46.54083,-88.13389
GeoHash:
G#: f032f2wb5
GRN:
N32W44
Type:
Mine
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Michigamme271 (2017)1.9km
Republic570 (2017)19.2km
West Ishpeming2,662 (2017)33.7km
L'Anse1,934 (2017)34.2km
Zeba480 (2017)36.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Ishpeming Rock and Mineral ClubIshpeming, Michigan36km
Mindat Locality ID:
23363
Long-form identifier:
mindat:1:2:23363:8
GUID (UUID V4):
2ed0a834-eb77-4155-a624-1679358b0c09


An iron mine working the Negaunee Iron-formation (Bijiki Iron Formation), located west of Michigamme. Like other mines working the Negaunee in the Michigamme area, the dumps of this mine produce large, well-formed chlorite pseudomorphs after garnet, and sprays of bluish and greenish grunerite in hematite schist.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


10 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

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

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“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
β“˜ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜ 'Chlorite Group'
Colour: dark green
Description: Occurs as well-formed dodecahedral pseudomorphs after garnet, easily separated from surrounding chlorite schist.
β“˜ Chloritoid
Formula: (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
β“˜ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
β“˜ Clinochlore var. Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Description: Occurs as well-formed dodecahedral pseudomorphs after garnet, easily separated from surrounding chlorite schist.
β“˜ Cummingtonite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Grunerite
Formula: ◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2
β“˜ Hematite
Formula: Fe2O3
β“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ 'Jasper'
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ 'Mica Group'
β“˜ Quartz
Formula: SiO2
β“˜ Siderite
Formula: FeCO3

Gallery:

(Fe2+)5Al(Si,Al)4O10(OH,O)8β“˜ Chamosite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
Group 9 - Silicates
β“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
β“˜Chloritoid9.AF.85(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
β“˜Cummingtonite9.DE.05β—»{Mg2}{Mg5}(Si8O22)(OH)2
β“˜Grunerite9.DE.05β—»{Fe2+2}{Fe2+5}(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Clinochlore ?9.EC.55Mg5Al(AlSi3O10)(OH)8
β“˜var. Ripidolite9.EC.55(Mg,Fe,Al)6(Si,Al)4O10(OH)8
β“˜Chamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
Unclassified
β“˜'Jasper'-
β“˜'Chlorite Group'-
β“˜'Mica Group'-
β“˜'Hornblende Root Name Group'-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Hβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Hβ“˜ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Hβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CCarbon
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ AlmandineFe32+Al2(SiO4)3
Oβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Oβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Oβ“˜ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Oβ“˜ HematiteFe2O3
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ QuartzSiO2
Oβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Oβ“˜ SideriteFeCO3
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ Garnet GroupX3Z2(SiO4)3
FFluorine
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Mgβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgβ“˜ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
AlAluminium
Alβ“˜ AlmandineFe32+Al2(SiO4)3
Alβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Alβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Alβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ AlmandineFe32+Al2(SiO4)3
Siβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Siβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Siβ“˜ Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
ClChlorine
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
MnManganese
Mnβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ AlmandineFe32+Al2(SiO4)3
Feβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feβ“˜ Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Feβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Feβ“˜ HematiteFe2O3
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ Clinochlore var. Ripidolite(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Feβ“˜ SideriteFeCO3

Other Regions, Features and Areas containing this locality

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

Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 108.
Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
www.mindat.org (n.d.) http://www.mindat.org/mesg-5-307634.html
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