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Little Chief Mine, Nespelem Mining District, Okanogan County, Washington, USAi
Regional Level Types
Little Chief MineMine
Nespelem Mining DistrictMining District
Okanogan CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
48° 8' 55'' North , 119° 0' 31'' West
Latitude & Longitude (decimal):
48.14861,-119.00861
GeoHash:
G#: c2e3gvhtf
GRN:
N33W57
Type:
Mine
Köppen climate type:
Dsb : Warm, dry-summer continental climate
Nearest Settlements:
PlacePopulationDistance
Nespelem Community253 (2011)2.7km
Nespelem256 (2017)3.2km
Elmer City240 (2017)17.2km
Coulee Dam1,093 (2017)20.5km
Grand Coulee1,043 (2017)23.0km
Mindat Locality ID:
22201
Long-form identifier:
mindat:1:2:22201:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Double Header Mine; Grand Coulee Mine; Ruby Silver Mine


A silver mine above Nespelem. It is located on the Southeast slope of the southeastern spur of Mineral Hill, on the opposite side of the spur from the Apache Mine, 3/4 of a mile away. It worked ore shoots along a fracture zone in granite 2'-10' wide, largely replaced by quartz. Development includes 3,000' of workings on 3 levels including a shaft, 7 stopes, and 3 adits. It produced 33 tons of ore in 1911-1912, and small amounts from 1937-1954.

Ore from this mine was shipped to the Tacoma Smelter (http://www.mindat.org/loc.php?loc=52739)

NOTE: Pardee (1918) list an "oxide of antimony" from one of the levels but does not specify further
Structure: To A Moderate Degree The Lode Is The Lode Is Sheared And Fractured By Post-Mineral Movement.

Alteration: Granite Is Sericitized

Commodity: Production more than $10,000 by 1921 additional 1937, 1954

Deposit: 18 unpatented claims

Development: Shaft, adits, and stopes. Development in 1956, 1967, 1969, and 1970.

Rock formation(s): Colville


Ore(s): Fracture In Granite

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


9 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Silver
Formula: Ag
ⓘ Stephanite
Formula: Ag5SbS4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘSilver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘStephanite2.GB.10Ag5SbS4
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
AlAluminium
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ChalcopyriteCuFeS2
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyriteFeS2
Sⓘ StephaniteAg5SbS4
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ PyrargyriteAg3SbS3
Agⓘ SilverAg
Agⓘ StephaniteAg5SbS4
SbAntimony
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ StephaniteAg5SbS4

Other Databases

Link to USGS MRDS:10109638

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

Pardee, J. T. (1918) Geology and mineral deposits of the Colville Indian Reservation, Washington. Bulletin 677. US Geological Survey doi:10.3133/b677
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA.
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
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