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Copper World Extension Mine, Palmer Mountain Mining District, Okanogan County, Washington, USAi
Regional Level Types
Copper World Extension MineMine
Palmer Mountain Mining DistrictMining District
Okanogan CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
48° 51' 25'' North , 119° 35' 34'' West
Latitude & Longitude (decimal):
48.85695,-119.59278
GRN:
N33W58
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Loomis159 (2011)5.0km
Oroville1,677 (2017)14.7km
Tonasket1,016 (2017)20.3km
Osoyoos4,314 (2008)22.1km
Conconully213 (2017)35.2km
Mindat Locality ID:
22116
Long-form identifier:
mindat:1:2:22116:5
GUID (UUID V4):
0
Other/historical names associated with this locality:
Iron Mask Mine; Iron Master Mine


A copper mine located just west of the summit of the central part of Palmer Mountain. It worked a series of overlapping tabular lenses along the contact between siliceous limestone and greenstone. Development includes a 300' shaft with drifting a 100' levels totaling about 1,900'. It produced ore prior to 1911 and in 1918-1919.

Note: This is a separate mine from the Copper World.
Structure: Hanging Wall Part Of Fault

Alteration: See Comments

Commodity: Production of an unknown quanity prior to 1911; production in 1918-1919. There could be considerable resources between the 200 and 300 ft levels and even belo W 300 ft if the ore could be traced. Total size of claims about 160 acres.

Deposit: A fine-grained mass of an intergrown natural sulphide matte, which is found in a series of o erlapping tabular masses; the larger lenses measure several hundred tons of ore each. 11 patented claims: homestake, caylor, iron mask, three links, rainy day, 20th century, columbus, anaconda, and lottie. Mine maps at wash. Dmg.

Development: Shaft and drifts; 5000 ft riblet aerial tramway, capacity of 400 tons/day, completed in 1919; exploration in 1967-1968.

Geology: Near the ore the wall rock is badly metamorphosed by intense shearing action that has developed serpentine and talc and in places converted the rock directly into a schist. This altered andesite often occurs As a horse two to five ft thick separating two overlapping parallel lenses of ore. ; geol.desc: series of overlapping tabular lenses of solid pyrite and chalcopyrite

Rock formation(s): Palmer Mtn Greenstone


Ore(s): Ore In Schistose Andesite Near Contact With Highly Silicified Andesite; Also Some Relation To Shear Zones

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


16 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:

ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Marcasite
Formula: FeS2
ⓘ Native Gold
Formula: Au
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sphalerite
Formula: ZnS
ⓘ Talc
Formula: Mg3Si4O10(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘ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 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘTalc9.EC.05Mg3Si4O10(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ TalcMg3Si4O10(OH)2
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
AuGold
Auⓘ Native GoldAu

Other Databases

Link to USGS MRDS:10041482

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

Umpelby, J.B. (1911) Geology and Ore Deposits of the Oroville-Nighthawk Mining District. Washington Geological Survey Bulletin no. 5: Part II.
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
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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