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

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Latitude & Longitude (WGS84):
48° 12' 24'' North , 119° 3' 55'' West
Latitude & Longitude (decimal):
48.20678,-119.06529
GeoHash:
G#:c2e64xg2c
GRN:
N33W57
Type:
Mine
Köppen climate type:
Dsb : Warm, dry-summer continental climate
Nearest Settlements:
PlacePopulationDistance
Nespelem Community253(2011)5.0km
Nespelem256(2017)8.0km
Elmer City240(2017)24.6km
Coulee Dam1,093(2017)27.6km
Grand Coulee1,043(2017)29.8km
Mindat Locality ID:
22796
Long-form identifier:
mindat:1:2:22796:5
GUID (UUID V4):
0


A polymetallic mine NW of Nespelem. It is a typical skarn deposit with abundant magnetite. Development consisted of a 350' adit. Some ore was produced.
Structure:Late Paleozoic Sediments Were Deposited Along An Active Continental Margin.

Geology: Argillite and greenstone of probable late paleozoic age are intruded by dikes of the porphyritic granodiorite of manilia creek (pardee, 1918; gulick and korosec, 1990, geol. Map).

Rock formation(s):Mainila Creek


Ore(s):Sedimentary Rocks In A Roof Pendant Are Mineralized. Huntting (1956, P. 366) Suggests That The Prospect Is A Promising Zinc Deposit.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


15 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 ListTree Diagram

Detailed Mineral List:

ⓘActinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘAzurite
Formula:Cu3(CO3)2(OH)2
ⓘBornite
Formula:Cu5FeS4
ⓘCalcite
Formula:CaCO3
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
ⓘEpidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘFluorite
Formula:CaF2
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘHematite
Formula:Fe2O3
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘMalachite
Formula:Cu2(CO3)(OH)2
ⓘMolybdenite ?
Formula:MoS2
ⓘQuartz
Formula:SiO2
ⓘScheelite
Formula:Ca(WO4)
ⓘSphalerite
Formula:ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘMolybdenite ?2.EA.30MoS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
HⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
HⓘAzuriteCu3(CO3)2(OH)2
HⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
HⓘMalachiteCu2(CO3)(OH)2
CCarbon
CⓘAzuriteCu3(CO3)2(OH)2
CⓘCalciteCaCO3
CⓘMalachiteCu2(CO3)(OH)2
OOxygen
OⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
OⓘAzuriteCu3(CO3)2(OH)2
OⓘCalciteCaCO3
OⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OⓘHematiteFe2O3
OⓘMagnetiteFe2+Fe23+O4
OⓘMalachiteCu2(CO3)(OH)2
OⓘQuartzSiO2
OⓘScheeliteCa(WO4)
OⓘGarnet GroupX3Z2(SiO4)3
FFluorine
FⓘFluoriteCaF2
MgMagnesium
MgⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
AlAluminium
AlⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
SiⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
SiⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiⓘQuartzSiO2
SiⓘGarnet GroupX3Z2(SiO4)3
SSulfur
SⓘBorniteCu5FeS4
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘMolybdeniteMoS2
SⓘSphaleriteZnS
CaCalcium
CaⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
CaⓘCalciteCaCO3
CaⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CaⓘFluoriteCaF2
CaⓘScheeliteCa(WO4)
FeIron
FeⓘActinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeⓘHematiteFe2O3
FeⓘMagnetiteFe2+Fe23+O4
CuCopper
CuⓘAzuriteCu3(CO3)2(OH)2
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘMalachiteCu2(CO3)(OH)2
ZnZinc
ZnⓘSphaleriteZnS
MoMolybdenum
MoⓘMolybdeniteMoS2
WTungsten
WⓘScheeliteCa(WO4)

Other Databases

Link to USGS MRDS:10056043

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, inInventory of Washington Minerals. Vol II.Bulletin 37, Washington Geological Survey.
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