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North Cliff Mine, Allouez Township, Keweenaw County, Michigan, USAi
Regional Level Types
North Cliff MineMine
Allouez TownshipTownship
Keweenaw CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
47° 23' 9'' North , 88° 19' 35'' West
Latitude & Longitude (decimal):
47.38611,-88.32639
GeoHash:
G#: f03jw46sj
GRN:
N32W44
Type:
Mine
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Ahmeek146 (2017)11.0km
Copper City187 (2017)12.3km
Calumet703 (2017)18.2km
Laurium1,941 (2017)18.7km
Lake Linden989 (2017)22.2km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Copper Country Rock and Mineral ClubDollar Bay, Michigan33km
Mindat Locality ID:
17078
Long-form identifier:
mindat:1:2:17078:2
GUID (UUID V4):
bff065f8-b72b-4e62-b5b1-f97cc9e57a6c


Commodities (Major) - Copper
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Portage Lake Volcanics
Host Rock: Basalt

The North Cliff Mining Company was organized in 1858 to work the northern extension of the Cliff Fissure. After one year of work, the shareholders decided to dissolve the company and reincorporate as the Swamscott Mining Company; however, that same year (1859), a special act of legislature changed the name back to North Cliff. Work continued through 1861 when company funds were spent. The mine reopened in 1863 and sunk four shafts. Mining was sporadic, conducted between the company and on tribute, through 1899. The company attempted to reorganize in 1899, but failed to raise enough capital to proceed and shut down operations. If the location can be found, most minerals associated with the Cliff Fissure should be available to collect.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

11 valid minerals.

Rock Types Recorded

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

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Analcime
Formula: Na(AlSi2O6) · H2O
β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
β“˜ Copper
Formula: Cu
β“˜ Cuprite
Formula: Cu2O
β“˜ Datolite
Formula: CaB(SiO4)(OH)
β“˜ Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
β“˜ Laumontite
Formula: CaAl2Si4O12 · 4H2O
β“˜ Likasite
Formula: Cu3(NO3)(OH)5 · 2H2O
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Prehnite
Formula: Ca2Al2Si3O10(OH)2
β“˜ Silver
Formula: Ag

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Silver1.AA.05Ag
β“˜Copper1.AA.05Cu
Group 4 - Oxides and Hydroxides
β“˜Cuprite4.AA.10Cu2O
Group 5 - Nitrates and Carbonates
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Likasite5.ND.05Cu3(NO3)(OH)5 Β· 2H2O
Group 9 - Silicates
β“˜Datolite9.AJ.20CaB(SiO4)(OH)
β“˜Prehnite9.DP.20Ca2Al2Si3O10(OH)2
β“˜Fluorapophyllite-(K)9.EA.15KCa4(Si8O20)(F,OH) Β· 8H2O
β“˜Analcime9.GB.05Na(AlSi2O6) Β· H2O
β“˜Laumontite9.GB.10CaAl2Si4O12 Β· 4H2O

List of minerals for each chemical element

HHydrogen
Hβ“˜ AnalcimeNa(AlSi2O6) · H2O
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ DatoliteCaB(SiO4)(OH)
Hβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Hβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Hβ“˜ LikasiteCu3(NO3)(OH)5 · 2H2O
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ PrehniteCa2Al2Si3O10(OH)2
BBoron
Bβ“˜ DatoliteCaB(SiO4)(OH)
CCarbon
Cβ“˜ AzuriteCu3(CO3)2(OH)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
NNitrogen
Nβ“˜ LikasiteCu3(NO3)(OH)5 · 2H2O
OOxygen
Oβ“˜ AnalcimeNa(AlSi2O6) · H2O
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ CupriteCu2O
Oβ“˜ DatoliteCaB(SiO4)(OH)
Oβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Oβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Oβ“˜ LikasiteCu3(NO3)(OH)5 · 2H2O
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ PrehniteCa2Al2Si3O10(OH)2
FFluorine
Fβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
NaSodium
Naβ“˜ AnalcimeNa(AlSi2O6) · H2O
AlAluminium
Alβ“˜ AnalcimeNa(AlSi2O6) · H2O
Alβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Alβ“˜ PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Siβ“˜ AnalcimeNa(AlSi2O6) · H2O
Siβ“˜ DatoliteCaB(SiO4)(OH)
Siβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Siβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Siβ“˜ PrehniteCa2Al2Si3O10(OH)2
KPotassium
Kβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
CaCalcium
Caβ“˜ DatoliteCaB(SiO4)(OH)
Caβ“˜ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Caβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Caβ“˜ PrehniteCa2Al2Si3O10(OH)2
CuCopper
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ CupriteCu2O
Cuβ“˜ CopperCu
Cuβ“˜ LikasiteCu3(NO3)(OH)5 · 2H2O
Cuβ“˜ MalachiteCu2(CO3)(OH)2
AgSilver
Agβ“˜ SilverAg

Localities in this Region

USA
  • Michigan
    • Keweenaw County

Other Regions, Features and Areas containing this locality

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

Stevens, H.J. (1902) The Copper Handbook, Vol 2. Mining Gazette Press, Houghton, Michigan. 494 pages.
Butler, B.S., Burbank, W.S. (1929) The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pages.
Cornwall, H.R. (1954) Bedrock Geology of the Phoenix Quadrangle, Michigan, United States Geological Survey Map GQ-34, scale 1:24,000.
Morris Jr., T. (1983) Michigan Mineralogy: A Locality Index. Rocks & Minerals: 58(3): 108.
The Copper Country Rock & Mineral Club (2001) Red Gold and Tarnished Silver, 2nd edition. Self-Published. 44 pages.
Kaminski-Hamka, T. (2011) The Copper Mines of Keweenaw County, Michigan. Copperlady Press. 150 pages.
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