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Keefer Brothers Prospect, Phelps Ridge (Red Mountain), Chiwawa Mining District, Chelan County, Washington, USAi
Regional Level Types
Keefer Brothers ProspectProspect
Phelps Ridge (Red Mountain)Ridge
Chiwawa Mining DistrictMining District
Chelan CountyCounty
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
48° 9' 15'' North , 120° 53' 20'' West
Latitude & Longitude (decimal):
48.15444,-120.88889
GRN:
N33W58
Type:
Prospect
Köppen climate type:
Dsc : Dry-summer subarctic climate
Nearest Settlements:
PlacePopulationDistance
Skykomish207 (2017)60.7km
Mindat Locality ID:
18105
Long-form identifier:
mindat:1:2:18105:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Keefer Molybdenum Prospect; Keefer Prospect


A molybdenum-tungsten-uranium prospect located on the west slope of Phelps Ridge near the headwaters of the Chiwawa River, 1 mile south of Lyman Glacier.

Alteration: Hydrothermal Alteration Of Granodiorite

Tectonics: Cascade Volcanic Arc

Deposit: Lat. & long. Are general ; info.src : 1 pub lit mrds records d000650, w017897 have been merged with this record and deleted veins are in narrow fissures with some hydrothermal alteration of host rocks. The type of deposit is unknown

Geology: Granodiorite intrudes schist and gneiss and is probably an outlier of the cloudy pass pluton

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


7 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
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ 'Gummite'
ⓘ Molybdenite
Formula: MoS2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
ⓘ Uraninite
Formula: UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘUraninite4.DL.05UO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Gummite'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

BBoron
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
OOxygen
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ UraniniteUO2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ ChalcopyriteCuFeS2
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
CaCalcium
Caⓘ ScheeliteCa(WO4)
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
AsArsenic
Asⓘ ArsenopyriteFeAsS
MoMolybdenum
Moⓘ MolybdeniteMoS2
WTungsten
Wⓘ ScheeliteCa(WO4)
UUranium
Uⓘ UraniniteUO2

Other Databases

Link to USGS MRDS:10107740

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

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