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Epidote Mine, Isle Royale National Park, Keweenaw County, Michigan, USAi
Regional Level Types
Epidote MineMine
Isle Royale National ParkNational Park
Keweenaw CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
48° 2' 34'' North , 88° 36' 33'' West
Latitude & Longitude (decimal):
48.04278,-88.60917
GeoHash:
G#: f08cr9uv2
GRN:
N33W43
Type:
Mine
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
33652
Long-form identifier:
mindat:1:2:33652:8
GUID (UUID V4):
9afe1526-70d0-459a-801f-2f157389fe2d


Between 1846 and 1849, the Ohio & Isle Royale Company mined this property. The mine was named after the epidote found at the site contained copper. The mine is accessible only by boat as no trials lead to the site. It is said that copper and epidote can be found, but no collecting is allowed.

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


3 valid minerals.

Rock Types Recorded

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

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
Group 9 - Silicates
β“˜Datolite9.AJ.20CaB(SiO4)(OH)
β“˜Pumpellyite-(Mg)9.BG.20Ca2MgAl2(Si2O7)(SiO4)(OH)2 Β· H2O
β“˜var. Chlorastrolite9.BG.20Ca2MgAl2(Si2O7)(SiO4)(OH)2 Β· H2O
Unclassified
β“˜'Thomsonite Subgroup'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ DatoliteCaB(SiO4)(OH)
Hβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Hβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
BBoron
Bβ“˜ DatoliteCaB(SiO4)(OH)
OOxygen
Oβ“˜ DatoliteCaB(SiO4)(OH)
Oβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Oβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
MgMagnesium
Mgβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Mgβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
AlAluminium
Alβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Alβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
SiSilicon
Siβ“˜ DatoliteCaB(SiO4)(OH)
Siβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Siβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
CaCalcium
Caβ“˜ DatoliteCaB(SiO4)(OH)
Caβ“˜ Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Caβ“˜ Pumpellyite-(Mg) var. ChlorastroliteCa2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
CuCopper
Cuβ“˜ CopperCu

Other Databases

Link to USGS MRDS:10082645

Other Regions, Features and Areas containing this locality

North America
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

Lane, A.C. (1898) Upper Peninsula 1893-1897, Geologic Report on Isle Royale, Michigan. Geological Survey of Michigan: 6(1), 281 pages.
Huber, N.K. (1973) Geologic Map of Isle Royale National Park, Keweenaw County, Michigan: United States Geological Survey, Miscellaneous Geologic Investigations Map I-796, scale 1:62,500.
Kaminski-Hamka, T. (2011) The Copper Mines of Keweenaw County, Michigan. Copperlady Press. 150 pages.
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