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!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Ala-Dickson Claim, Williamson Creek, Sultan Mining District, Snohomish County, Washington, USAi
Regional Level Types
Ala-Dickson ClaimClaim
Williamson CreekCreek
Sultan Mining DistrictMining District
Snohomish CountyCounty
WashingtonState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
48° 1' 15'' North , 121° 33' 37'' West
Latitude & Longitude (decimal):
48.02110,-121.56030
GRN:
N33W59
Type:
Claim
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Verlot285 (2015)17.9km
May Creek818 (2011)20.2km
Gold Bar2,112 (2017)20.9km
Startup676 (2011)21.7km
Index194 (2017)22.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Darrington Rock & Gem ClubDarrington, Washington26km
Marysville Rock & Gem Club, Inc.Marysville, Washington46km
Everett Rock & Gem ClubEverett, Washington48km
Mindat Locality ID:
71995
Long-form identifier:
mindat:1:2:71995:2
GUID (UUID V4):
0


The Ala Dickson prospect was located on the ridge dividing Williamson and Stony creeks. It worked mineralized veins 2"-12" wide in 4 parallel zones in a 90' area.
Tectonics: Cascade Volcanic Arc

Deposit: Ore consists of 4 parallel zones 2-3 ft wide over a 90 ft width of mineralized quartz carbonate veins

Deposit type: Polymetallic veins

Geology: Dike is probably related to batholithic rocks

Rock formation(s): Eastern Melange Belt


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
ⓘ Galena
Formula: PbS
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ Talc
Formula: Mg3Si4O10(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘTalc9.EC.05Mg3Si4O10(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ TalcMg3Si4O10(OH)2
OOxygen
Oⓘ QuartzSiO2
Oⓘ TalcMg3Si4O10(OH)2
MgMagnesium
Mgⓘ TalcMg3Si4O10(OH)2
SiSilicon
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
PbLead
Pbⓘ GalenaPbS

Other Databases

Link to USGS MRDS:10036809

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

Carithers, W., Guard, A. (1945) Geology and Ore Deposits of the Sultan Basin, Snohomish County, Washington. State of Washington Department of Conservation and Development Division of Mines and Geology Bulletin 36, 92 pages.
Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.
Quick NavTopCommoditiesMineral ListRock TypesOther DatabasesOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 07:39:03 Page updated: August 31, 2025 10:58:40
Go to top of page