Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Devils Canyon Prospect, Buena Vista Mining District, King County, Washington, USAi
Regional Level Types
Devils Canyon ProspectProspect
Buena Vista Mining DistrictMining District
King CountyCounty (Historical)
WashingtonState
USACountry

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Latitude & Longitude (WGS84):
47° 36' 56'' North , 121° 30' 19'' West
Latitude & Longitude (decimal):
47.61583,-121.50550
GeoHash:
G#: c23wgh4qk
GRN:
N32W60
Type:
Prospect
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Skykomish207 (2017)15.0km
Baring220 (2011)17.6km
Index194 (2017)23.1km
Tanner1,018 (2011)23.9km
Riverbend2,132 (2011)24.8km
Mindat Locality ID:
18514
Long-form identifier:
mindat:1:2:18514:6
GUID (UUID V4):
0


The Devils Canyon prospect was a failed venture to find copper ore near the head of the North Fork of the Snoqualmie River. It explored a zone of abundant quartz and sulfide stringers in granite along a 20' wide shear zone. In places up to 20% of the shear zone is stringers. A 200' adit was driven but there is no recorded production.
Structure: Shear Zones

Tectonics: Cascade Volcanic Arc

Deposit: Quartz veins in en echelon mineralized shear zones. A few of the quartz stringers are 8 in thick

Deposit type: Polymetallic veins

Rock formation(s): Snoqualmie Batholith


Ore(s): Structures

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


8 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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘSiderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘPowellite7.GA.05Ca(MoO4)
ⓘScheelite7.GA.05Ca(WO4)

List of minerals for each chemical element

CCarbon
Cⓘ SideriteFeCO3
OOxygen
Oⓘ PowelliteCa(MoO4)
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ SideriteFeCO3
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
CaCalcium
Caⓘ PowelliteCa(MoO4)
Caⓘ ScheeliteCa(WO4)
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ ChalcopyriteCuFeS2
MoMolybdenum
Moⓘ MolybdeniteMoS2
Moⓘ PowelliteCa(MoO4)
WTungsten
Wⓘ ScheeliteCa(WO4)

Other Databases

Link to USGS MRDS:10008477

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

Phillips Purdy, C. (1954) Molybdenum Occurrences of Washington. Report of Investigations No.18, Division of Mines and Geology, Department of Conservations and Development, Washington, 125 pages.
Culver, H.E. and Broughton, W.A. (1945),Tungsten Resources of Washington. Washington Division of Mines and Geology Bulletin #34, 113 p.
Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA.
Thurber, H.K., Miller, M.S., McMahan, A.B., Federspiel, F.E. (1989) Economic Appraisal of the Alpine Lakes Study Area and Additions, Washington. US Geological Survey Bulletin 1542-E, 317 pages.
Jacobson, D., Pisoni, V., Cady, G., Woodhouse, P. (2008) Discovering Washington's Historic Mines, Volume 1: The West Central Cascade Mountains. Northwest Mining Publishers, 230 pages.
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