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⇱ Ogima Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA

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Ogima Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USAi
Regional Level Types
Ogima MineMine
Mass Consolidated MineMine
Mass CityUnincorporated Community
Ontonagon CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 45' 31'' North , 89° 6' 18'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Ontonagon1,324 (2017)20.2km
White Pine474 (2017)36.5km
South Range746 (2017)49.3km
Watersmeet428 (2017)54.8km
Mindat Locality ID:
33326
Long-form identifier:
mindat:1:2:33326:6
GUID (UUID V4):
0


The Ogima Mining Company was organized in 1860 after approximately 115,000 pounds of copper was removed from ancient mining pits located on the property. Mining work began in 1860 and by 1868, three shafts had been sunk, as well as several surface improvements completed. The mine closed in 1868. Through 1887, the mine was leased to tributors who recovered additional copper, bringing the total in 25 years of mining on the site to 491 tons. The mine was absorbed by the Mass Consolidated Mining Company in 1899. The mine has produced some very nice copper, silver, and a few datolites over the years.

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.

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
ⓘ Datolite
Formula: CaB(SiO4)(OH)
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Native Copper
Formula: Cu

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
ⓘDatolite9.AJ.20CaB(SiO4)(OH)

List of minerals for each chemical element

HHydrogen
Hⓘ DatoliteCaB(SiO4)(OH)
Hⓘ MalachiteCu2(CO3)(OH)2
BBoron
Bⓘ DatoliteCaB(SiO4)(OH)
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ CalciteCaCO3
Oⓘ DatoliteCaB(SiO4)(OH)
Oⓘ MalachiteCu2(CO3)(OH)2
SiSilicon
Siⓘ DatoliteCaB(SiO4)(OH)
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DatoliteCaB(SiO4)(OH)
CuCopper
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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References

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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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