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Moffet-Johnston Mine, Tidal Wave Mining District, Madison County, Montana, USAi
Regional Level Types
Moffet-Johnston Mine- not defined -
Tidal Wave Mining DistrictMining District
Madison CountyCounty
MontanaState
USACountry

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Latitude & Longitude (WGS84):
45° 36' 11'' North , 112° 11' 15'' West
Latitude & Longitude (decimal):
45.60306,-112.18750
GRN:
N31W57
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Twin Bridges394 (2017)12.9km
Sheridan677 (2017)16.4km
Pony118 (2011)23.6km
Whitehall1,094 (2017)30.6km
Alder103 (2011)31.7km
Mindat Locality ID:
162469
Long-form identifier:
mindat:1:2:162469:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Mountain View Mine; Johnston - Moffet Copper Mine


Commodities (Major) - Copper; (Minor) - Gold, Silver
Deposit Type: Contact Metasomatic
Development Status: Past Producer
Host Rock Unit: Pre Belt
Structure: North - Striking Fault May Have Exerted Structural Control On Emplacement Of Qtz Monzonite Stock., North - Striking And Northeast - Striking Faults
Host Rock: Limestone
Tectonic Structure: Fault Block Mountain

REF:Deposit:: ROBY, R.N., 1946, EXPLORATION OF THE MOFFET-JOHNSTON COPPER
Deposit:: PROPERTY, MADISON COUNTY, MONTANA, USBM REPT. OF INVESTIGATI
Deposit:: ON 3939, 12 P.
Deposit:: USBM MINERAL PROPERTY FILE 21.138, WESTERN FIELD OPERATION
Deposit:: CENTE
Commodities (Major) - Copper; (Minor) - Silver, Gold
Development Status: Past Producer

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


14 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Cuprite
Formula: Cu2O
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Native Copper
Formula: Cu
ⓘ Pyrite
Formula: FeS2
ⓘ Tenorite
Formula: CuO
ⓘ Wollastonite
Formula: Ca3(Si3O9)
References:
USGS OFR 1945-34

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
ⓘTenorite4.AB.10CuO
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ CupriteCu2O
Oⓘ DiopsideCaMgSi2O6
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ TenoriteCuO
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
AlAluminium
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ DiopsideCaMgSi2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ PyriteFeS2
CaCalcium
Caⓘ DiopsideCaMgSi2O6
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ WollastoniteCa3(Si3O9)
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CupriteCu2O
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ TenoriteCuO

Other Databases

Link to USGS MRDS:10078289

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

REF:Deposit:: MBMG BULL 24, P. 26-27.
Deposit:: ROBY, R. N., 1946 , EXPLORATION OF THE MOFFET - JOHNSTON COPPER PROPERTY, MADISON COUNTY, MONTANA: U S BUREAU OF MINES REPORT OF INVESTIGATIONS 3939 , 12 P.
Deposit:: 1943 DIREXPL ROBY, USBM PUBLISHED REPORT
Winchell, Alexander Newton (1914) Mining districts of the Dillon quadrangle, Montana, and adjacent areas. Bulletin 574. US Geological Survey doi:10.3133/b574
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