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National Mine, Rockland, Ontonagon Co., Michigan, USAi
Regional Level Types
National MineMine
Rockland- not defined -
Ontonagon Co.County
MichiganState
USACountry

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Key
Latitude & Longitude (WGS84):
46° 43' 42'' North , 89° 10' 45'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Ontonagon1,324 (2017)18.9km
White Pine474 (2017)30.9km


An underground copper mine consisting of seven shafts located just south of Rockland, MI. The National Mine was chartered in 1848 and worked until 1871. The mine was worked on tribute until 1893, when the mine was closed for good. The National Mine produced approx. 11.6 million lbs. of refined copper. The mine piles today produce quality copper and silver crystals, copper chisel chips, and occasionally supergene minerals azurite and malachite. An unusual chalcedony specimen from here is on display at the Seaman Mineral Museum.

Regions containing this locality

North America PlateTectonic Plate
Keweenaw Peninsula, Michigan, USAPeninsula

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals.

Detailed Mineral List:

Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Baryte
Formula: BaSO4
Reference: Rocks & Min.: 58:112.
Calcite
Formula: CaCO3
Reference: Rocks & Min.: 58:112.
'Chlorite Group'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Copper
Formula: Cu
Reference: Rocks & Min.: 58:112.
Cuprite
Formula: Cu2O
Reference: Rocks & Min.: 58:112.
Dolomite
Formula: CaMg(CO3)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'K Feldspar'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Pumpellyite-(Mg)
Formula: Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz var: Chalcedony
Formula: SiO2
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Silver
Formula: Ag
Reference: Rocks & Min.: 58:112.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Silver1.AA.05Ag
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Pumpellyite-(Mg)9.BG.20Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'K Feldspar'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Silver1.1.1.2Ag
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Pumpellyite-(Mg)58.2.2.7Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
'K Feldspar'-
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H AzuriteCu3(CO3)2(OH)2
H MalachiteCu2(CO3)(OH)2
H NatroliteNa2Al2Si3O10 · 2H2O
CCarbon
C CalciteCaCO3
C AzuriteCu3(CO3)2(OH)2
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O BaryteBaSO4
O CalciteCaCO3
O CupriteCu2O
O QuartzSiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O AzuriteCu3(CO3)2(OH)2
O DolomiteCaMg(CO3)2
O MalachiteCu2(CO3)(OH)2
O NatroliteNa2Al2Si3O10 · 2H2O
O Quartz (var: Chalcedony)SiO2
NaSodium
Na NatroliteNa2Al2Si3O10 · 2H2O
MgMagnesium
Mg Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Mg DolomiteCaMg(CO3)2
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al NatroliteNa2Al2Si3O10 · 2H2O
SiSilicon
Si QuartzSiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Quartz (var: Chalcedony)SiO2
SSulfur
S BaryteBaSO4
CaCalcium
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Pumpellyite-(Mg)Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Ca DolomiteCaMg(CO3)2
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CuCopper
Cu CopperCu
Cu CupriteCu2O
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu AzuriteCu3(CO3)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
AgSilver
Ag SilverAg
BaBarium
Ba BaryteBaSO4

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Rocks & Minerals: 58: 112
Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.
The Copper Country Rock & Mineral Club, 2001, Red Gold and Tarnished Silver, 2nd Ed., 44 pp.
Clarke, D.H., 1978, Copper Mines of keweenaw: Minesota Mining Company, No. 11, 28 pp.


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