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Grand Marais, Cook County, Minnesota, USAi
Regional Level Types
Grand MaraisCity
Cook CountyCounty
MinnesotaState
USACountry

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Type:
Largest Settlements:
PlacePopulation
Grand Marais1,327 (2017)
Mindat Locality ID:
250428
Long-form identifier:
mindat:1:2:250428:8
GUID (UUID V4):
0


Grand Marais is a city and the county seat of Cook County. It is located on the North Shore of Lake Superior.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

6 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
References:
Samuel Anderson CollectionIdentified by Samuel Anderson: Visual Identification
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
References:
Samuel Anderson CollectionIdentified by Samuel Anderson: Visual Identification
ⓘ Pumpellyite-(Fe2+) ?
Formula: Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
References:
Samuel Anderson CollectionIdentified by Samuel Anderson: Visual Identification
ⓘ Quartz
Formula: SiO2
Colour: multi-colored
Description: Agates can be found along the beaches near Grand Marais.
ⓘ Quartz var. Chalcedony
Formula: SiO2
Colour: multi-colored
Description: Agates can be found along the beaches near Grand Marais.
ⓘ Quartz var. Lake Superior Agate
Formula: SiO2
Colour: multi-colored
Description: Agates can be found along the beaches near Grand Marais.
ⓘ Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
References:
Samuel Anderson CollectionIdentified by Samuel Anderson: Visual Identification
ⓘ Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Chalcedony
4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Lake Superior Agate4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘPumpellyite-(Fe2+) ?9.BG.20Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
ⓘSaponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
ⓘThomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O

List of minerals for each chemical element

HHydrogen
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Hⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Hⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Oⓘ QuartzSiO2
Oⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Oⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Oⓘ Quartz var. Lake Superior AgateSiO2
NaSodium
Naⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
MgMagnesium
Mgⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Alⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Alⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Siⓘ QuartzSiO2
Siⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Siⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Siⓘ Quartz var. Lake Superior AgateSiO2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Caⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Caⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
FeIron
Feⓘ Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)
Feⓘ SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Grand_Marais,_Minnesota
Wikidata ID:Q1916460
GeoNames ID:5028500

Localities in this Region

Other Regions, Features and Areas that Intersect

North AmericaContinent
North America PlateTectonic Plate
USA

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