Log InRegister
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 Articles
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 CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Chippewa Mine, Douglas Co., Wisconsin, USAi
Regional Level Types
Chippewa MineMine (Abandoned)
Douglas Co.County
WisconsinState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 46° 35' 22'' North , 91° 50' 4'' West
Latitude & Longitude (decimal): 46.58944,-91.83444
GeoHash:G#: cbq9n325n
Locality type:Mine (Abandoned) - last checked 2018
Deposit first discovered:1897
Köppen climate type:Dfb : Warm-summer humid continental climate


Several shafts and tunnels were sunk in metabasalts near Middle River (SW SW Sec 3 T47N R12W). The earliest work was done in 1897-1899, with follow up work in 1901. The U.S. Bureau of Mines did follow-up work in 1953 on the basis of earlier reports of nickel mineralization with the copper. The early reports also noted silver and gold values, which were not substantiated by the Bureau of Mines work. The Bureau of Mines work indicate that copper values were sub-economic and no nickel analysis topped 0.0041%. The rocks dip steeply to the south. The main copper mineral observed was native copper. The mineral was seen as not "persistent" and "spotty" in veins, vugs and amygdules, associated with quartz, calcite, prehnite and epidote.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


6 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

'Basalt'
Reference: Holliday, R. (1955) Investigation of the Chippewa copper-nickel prospect near Rockmont, Douglas County, Wisconsin: U.S. Bureau of Mines Report of Investigations 5114. 11 p.
Calcite
Formula: CaCO3
Reference: Holliday, R. (1955) Investigation of the Chippewa copper-nickel prospect near Rockmont, Douglas County, Wisconsin: U.S. Bureau of Mines Report of Investigations 5114. 11 p.
'Chlorite Group'
Reference: Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Copper
Formula: Cu
Reference: Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
'commodity:Copper'
Formula: Cu
Reference:  
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Quartz
Formula: SiO2
Reference: Holliday, R. (1955) Investigation of the Chippewa copper-nickel prospect near Rockmont, Douglas County, Wisconsin: U.S. Bureau of Mines Report of Investigations 5114. 11 p.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 9 - Silicates
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Laumontite'9.GB.10CaAl2Si4O12 · 4H2O
'Prehnite'9.DP.20Ca2Al2Si3O10(OH)2
Unclassified Minerals, Rocks, etc.
'Basalt'-
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Rocks, etc.
'Basalt'-
'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H PrehniteCa2Al2Si3O10(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O PrehniteCa2Al2Si3O10(OH)2
O QuartzSiO2
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
CaCalcium
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca PrehniteCa2Al2Si3O10(OH)2
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CuCopper
Cu CopperCu

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Stenian
1000 - 1200 Ma



ID: 2801625
Granophyre

Age: Stenian (1000 - 1200 Ma)

Description: Associated with Amnicon pluton and the Mellen complex

Comments: Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{granitic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Mesoproterozoic
1000 - 1600 Ma



ID: 3190266
Mesoproterozoic volcanic rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Comments: Mid-Continent Rift

Lithology: Bimodal volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Holliday, R. (1955) Investigation of the Chippewa copper-nickel prospect near Rockmont, Douglas County, Wisconsin: U.S. Bureau of Mines Report of Investigations 5114. 11 p.
Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.


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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 16, 2019 07:42:06 Page generated: December 10, 2018 16:06:00
Go to top of page