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Starkweather copper prospects (Edwards Mine; Wisconsin Mine), Douglas County, Wisconsin, USAi
Regional Level Types
Starkweather copper prospects (Edwards Mine; Wisconsin Mine)Group of Prospects (Abandoned)
Douglas CountyCounty
WisconsinState
USACountry

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Latitude & Longitude (WGS84):
46° 34' 59'' North , 91° 57' 59'' West
Latitude & Longitude (decimal):
46.58306,-91.96639
GeoHash:
G#: cbq9520jg
GRN:
N32W46
Type:
Group of Prospects (Abandoned) - last checked 2018
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Poplar600 (2017)12.8km
Superior Village558 (2017)13.4km
Superior26,579 (2017)18.6km
Oliver398 (2017)19.3km
Lake Nebagamon1,058 (2017)21.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Carlton County Gem and Mineral ClubCloquet, Minnesota41km
Mindat Locality ID:
51673
Long-form identifier:
mindat:1:2:51673:5
GUID (UUID V4):
0


Several shafts were dug in brecciated diabasic amygdaloidal metabasalts in the NW Sec 2 T47N R13W, near South Range.

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


4 valid minerals.

Detailed Mineral List:

ⓘ 'Chlorite Group'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Native Copper
Formula: Cu

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 5 - Nitrates and Carbonates
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MalachiteCu2(CO3)(OH)2
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
SiSilicon
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
CaCalcium
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
FeIron
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CuCopper
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2

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

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.
Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.
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