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Seven Mile Point, Allouez Township, Keweenaw County, Michigan, USAi
Regional Level Types
Seven Mile PointPoint
Allouez TownshipTownship
Keweenaw CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
47° 22' 17'' North , 88° 25' 12'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Ahmeek146 (2017)8.3km
Copper City187 (2017)10.1km
Calumet703 (2017)14.1km
Laurium1,941 (2017)15.0km
Lake Linden989 (2017)19.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Copper Country Rock and Mineral ClubDollar Bay, Michigan29km
Mindat Locality ID:
125440
Long-form identifier:
mindat:1:2:125440:5
GUID (UUID V4):
0


A point of land (cape) into Lake Superior with a surrounding public park.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

7 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

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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Peristerite
Formula: Na(AlSi3O8)
ⓘ Calcite
Formula: CaCO3
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Description: Pseudo-hexagonal microcrystals associated with calcite and feldspar group minerals in vugs within a cobble of porphyritic basalt.
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Native Copper
Formula: Cu
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Agate
Formula: SiO2
ⓘ Quartz var. Amethyst
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Quartz var. Lake Superior Agate
Formula: SiO2
References:
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
Habit: tiny smoky quartz crystals with laumontite and agate
Colour: grey
Fluorescence: none
Description: A specimen was found at seven mile point 2013.
ⓘ 'Thomsonite Subgroup'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Agate
4.DA.05SiO2
ⓘvar. Amethyst4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘvar. Lake Superior Agate4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Peristerite9.FA.35Na(AlSi3O8)
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Thomsonite Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ PrehniteCa2Al2Si3O10(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Quartz var. AgateSiO2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Quartz var. AmethystSiO2
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ Albite var. PeristeriteNa(AlSi3O8)
Oⓘ Quartz var. Lake Superior AgateSiO2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Albite var. PeristeriteNa(AlSi3O8)
MgMagnesium
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Albite var. PeristeriteNa(AlSi3O8)
SiSilicon
Siⓘ Quartz var. AgateSiO2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Quartz var. AmethystSiO2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ Albite var. PeristeriteNa(AlSi3O8)
Siⓘ Quartz var. Lake Superior AgateSiO2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
CuCopper
Cuⓘ Native CopperCu

Localities in this Region

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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