Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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 TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced 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 QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Kearsarge Mine, Kearsarge, Calumet Township, Houghton County, Michigan, USAi
Regional Level Types
Kearsarge MineMine
KearsargeUnincorporated Community
Calumet TownshipTownship
Houghton CountyCounty
MichiganState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
47° 16' 29'' North , 88° 24' 57'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Copper City187 (2017)2.4km
Ahmeek146 (2017)3.0km
Calumet703 (2017)4.3km
Laurium1,941 (2017)4.6km
Lake Linden989 (2017)9.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Copper Country Rock and Mineral ClubDollar Bay, Michigan19km
Mindat Locality ID:
13767
Long-form identifier:
mindat:1:2:13767:1
GUID (UUID V4):
0


An underground copper mine consisting of six shafts. Organized as the Kearsarge Mining Company in 1886, it worked the Kearsarge Lode on opposite sides of the Wolverine Mine and between 1887 and 1897 produced approximately 14.5 million pounds of refined copper. In 1897, the company was bought by the Osceola Consolidated Mining Company and was split into the North Kearsarge (four shafts) and the South Kearsarge (two shafts). South Kearsarge was closed in 1930 and never reopened. North Kearsarge closed in 1931, but then reopened in 1942 to supply the war effort and continued until 1956 when it was closed for good. The Kearsarge Mines are one of the best silver producers for specimens in the Keweenaw.

More information on each mine can be found on their respective locality pages.

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


13 valid minerals.

Detailed Mineral List:

Brucite
Formula: Mg(OH)2
Calcite
Formula: CaCO3
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Copper
Formula: Cu
Cuprite
Formula: Cu2O
Datolite
Formula: CaB(SiO4)(OH)
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Kinoite
Formula: Ca2Cu2(H2O)2[Si3O10]
Malachite
Formula: Cu2(CO3)(OH)2
Microcline
Formula: K(AlSi3O8)
Quartz
Formula: SiO2
Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Silver
Formula: Ag

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Silver1.AA.05Ag
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Quartz4.DA.05SiO2
Brucite4.FE.05Mg(OH)2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Datolite9.AJ.20CaB(SiO4)(OH)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Kinoite9.BH.10Ca2Cu2(H2O)2[Si3O10]
Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Microcline9.FA.30K(AlSi3O8)

List of minerals for each chemical element

HHydrogen
H BruciteMg(OH)2
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H DatoliteCaB(SiO4)(OH)
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H KinoiteCa2Cu2(H2O)2[Si3O10]
H MalachiteCu2(CO3)(OH)2
H SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O BruciteMg(OH)2
O CalciteCaCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O CupriteCu2O
O DatoliteCaB(SiO4)(OH)
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O KinoiteCa2Cu2(H2O)2[Si3O10]
O MalachiteCu2(CO3)(OH)2
O MicroclineK(AlSi3O8)
O QuartzSiO2
O SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg BruciteMg(OH)2
Mg SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al MicroclineK(AlSi3O8)
Al SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si DatoliteCaB(SiO4)(OH)
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si KinoiteCa2Cu2(H2O)2[Si3O10]
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
KPotassium
K MicroclineK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
Ca DatoliteCaB(SiO4)(OH)
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca KinoiteCa2Cu2(H2O)2[Si3O10]
Ca SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
FeIron
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu CupriteCu2O
Cu CopperCu
Cu KinoiteCa2Cu2(H2O)2[Si3O10]
Cu MalachiteCu2(CO3)(OH)2
AgSilver
Ag SilverAg

Other Regions, Features and Areas containing this locality

North AmericaContinent
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

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 08:02:21 Page updated: August 4, 2025 21:03:13
Go to top of page