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Detroit Graphite Company Graphite Quarry, Alberta, Baraga County, Michigan, USAi
Regional Level Types
Detroit Graphite Company Graphite QuarryQuarry
AlbertaUnincorporated Community
Baraga CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 39' 2'' North , 88° 26' 2'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
L'Anse1,934 (2017)11.9km
Baraga1,996 (2017)14.8km
Zeba480 (2017)16.9km
Michigamme271 (2017)27.9km
Republic570 (2017)44.3km
Mindat Locality ID:
123752
Long-form identifier:
mindat:1:2:123752:1
GUID (UUID V4):
0


A graphitic slate quarry operated by the Detroit Graphite Company during 1912 and prior years. Graphite was extracted from the quarried slate at a facility in L'Anse and used as paint pigment.

The quarry consists of a shallow open pit accessed through a narrow cut through a hillside. It lies in the Michigamme Lower Slate formation near the contact with a gneiss complex to the south. The slates near this contact have been reported to contain between 17% and 30% graphite, and samples from the Detroit Graphite Quarry have been found to contain 35% graphite.

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.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMetatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
CCarbon
Cⓘ GraphiteC
OOxygen
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
AlAluminium
Alⓘ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siⓘ KaoliniteAl2(Si2O5)(OH)4
PPhosphorus
Pⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
SSulfur
Sⓘ PyriteFeS2
FeIron
Feⓘ PyriteFeS2
CuCopper
Cuⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
UUranium
Uⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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