Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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

Rainy Creek Ridge No. 2 Occurrence, Kantishna Mining District, Denali Borough, Alaska, USAi
Regional Level Types
Rainy Creek Ridge No. 2 OccurrenceOccurrence
Kantishna Mining DistrictMining District
Denali BoroughBorough
AlaskaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
63° 34' 16'' North , 150° 42' 54'' West
Latitude & Longitude (decimal):
63.57111,-150.71500
GeoHash:
G#: bekcdku8t
GRN:
N43W50
Type:
Occurrence
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
199588
Long-form identifier:
mindat:1:2:199588:9
GUID (UUID V4):
0


The occurrence is in Denali National Park and Preserve.
Location: The Rainy Creek Ridge No. 2 prospect is at an elevation of about 3750 feet on the ridge between the East Fork of Glen Creek and Spruce Creek It is in the NE1/4 SE1/4 of section 31, T. !5 S., R. 16 W., Fairbanks Meridian. The location corresponds to number 83 of Thornsberry, McKee, and Salisbury (1984), which includes the Rainy Creek Ridge Nos. 1 and 2 claims, to number 55 of Bundtzen, Smith, and Tosdal (1976), and to number 250 of Hawley and Associates (1978). The location is accurate within 500 feet. It is not certain whether it actually marks the Rainy Ridge Creek No. 2 claim, but it appears likely to.
Geology: The country rocks at this occurrence are steeply-dipping metafelsite and chloritic phyllite of the Spruce Creek sequence; the rocks strike ENE (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The occurrence is a 15-foot-wide, nearly vertical, silicified shear zone that strikes N60-75E; it contains massive arsenopyrite along with less-abundant pyrite. Quartz is the main gangue mineral, accompanied by some kaolinite. Samples of the mineralized shear zone assayed as much as 0.01 ounce of gold per ton, 0.23 ounce of silver per ton, 11.0 percent arsenic, 0.31 percent lead, 0.25 percent antimony, 0.011 percent copper, and 0.04 percent zinc (Bundtzen, 1981, location 59b) . Some of the arsenopyrite is oxidized to scorodite.
Workings: The claim is unpatented and there are no workings.
Age: The deposit is assumed to be Eocene (see record MM091).
Alteration: Silicification, argillization. Oxidation of arsenic mineral.

Commodities (Major) - Ag, Au; (Minor) - As
Development Status: None
Deposit Model: Arsenopyrite-quartz lode containing minor gold, silver, and base metals.

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


5 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘScorodite8.CD.10Fe3+AsO4 · 2H2O
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ ScoroditeFe3+AsO4 · 2H2O
OOxygen
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ QuartzSiO2
Oⓘ ScoroditeFe3+AsO4 · 2H2O
AlAluminium
Alⓘ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ QuartzSiO2
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ PyriteFeS2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ PyriteFeS2
Feⓘ ScoroditeFe3+AsO4 · 2H2O
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ ScoroditeFe3+AsO4 · 2H2O

Other Databases

Link to USGS - Alaska:MM067

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

Bundtzen, T. K., 1981, Geology and mineral deposits of the Kantishna Hills, Mt. McKinley quadrangle, Alaska: M. S. Thesis, University of Alaska, College, Alaska, 238 p. Bundtzen, T.K., Smith, T.E., and Tosdal, R.M., 1976, Progress report--Geology and mineral deposits of the Kantishna Hills: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF-98, 80 p., 2 sheets, scale 1:63,360. Hawley, C. C. and Associates, Inc, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U. S. Bureau of Mines Open-File Report 24-78, 275 p. (paged by sections). Thornsberry, V. V., McKee, C. J., and Salisbury, W. G., eds, 1984, 1983 Mineral Resource Studies: Kantishna Hills and Dunkle Mine Areas, Denali National Park and Preserve, Alaska: U. S. Bureau of Mines Open-File Report 129-84. 3 Volumes: v. 1, Text; v. 2, Appendices; v. 3, Maps. Prepared by Salisbury & Dietz, Inc., Spokane, WA.
Quick NavTopCommoditiesMineral ListOther 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 6, 2026 03:30:57 Page updated: August 5, 2025 07:12:15
Go to top of page