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.
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Taku Chief; Steeple Prospect, Juneau Mining District, Juneau, Alaska, USAi
Regional Level Types
Taku Chief; Steeple ProspectProspect
Juneau Mining DistrictMining District
JuneauCity Borough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
58° 5' 2'' North , 133° 58' 51'' West
Latitude & Longitude (decimal):
58.08389,-133.98083
GRN:
N39W53
Type:
Prospect
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Juneau32,756 (2017)35.3km
Mindat Locality ID:
200277
Long-form identifier:
mindat:1:2:200277:7
GUID (UUID V4):
0


Location: This prospect is about 0.5 mile east of Steeple Peak at an elevation of about 2,100 feet. It is in the SW1/4NW 1/4 section 4, T. 44 S., R. 70 E. of the Copper River Meridian. This is location T009 of Wells and others (1986). The location is accurate within 1/4 mile.
Geology: The Taku Chief prospect is in black phyllite, felsic phyllite, and chlorite phyllite that have been intruded by Cretaceous diorite and metagabbro (Redman and others, 1989). The phyllite locally contains both disseminated and stratiform pyrrhotite and pyrite. Zinc and gold values have been reported (Redman and others, 1985). A few open cuts, trenches, and an adit have been excavated (Redman and others, 1989). The Taku Chief claims were originally staked in 1954 by Henry (Tiger) Olson (Redman and others, 1985).
Workings: The Taku Chief claims were originally staked in 1954 by Henry (Tiger) Olson (Redman and others, 1985). Open cuts, trenches and an adit have been excavated (Redman and others, 1989).

Commodities (Major) - Au, Zn
Development Status: None
Deposit Model: Possibly low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)

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


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2

List of minerals for each chemical element

SSulfur
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
FeIron
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS

Other Databases

Link to USGS - Alaska:TR014

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

Redman, E.C., Maas, K.M., Kurtak, J.M., and Miller, L.D., 1989, Bureau of Mines Mineral Investigations in the Juneau Mining District, Alaska, 1984-1988, Volume 2--Detailed mine, prospect, and mineral occurrence descriptions, Section D, Juneau Gold Belt Subarea: U.S. Bureau of Mines Special Publication, 424 p. Redman, E.C., Roberts, W. S., Clough, A., and Kurtak, J., 1985, Preliminary mine, prospect, sample location maps and descriptions, Juneau Gold Belt area: U.S. Bureau of Mines Open-File Report 85-86, 68 p. 4 sheets. Wells, D.E., Pittman, T.L., Brew, D.A. and Douglass, S.L., 1986, Map and description of the mineral deposits in the Juneau, Taku River, Atlin, and part of the Skagway quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-717, 332 p., 1 sheet, scale 1:250,000.
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