Location: Cobb (1972, MF-413), loc. 40; SW1/4 sec. 19, T. 3 N., R. 2 E., of the Fairbanks Meridian. This prospect is on the divide between Bedrock and Chatham Creeks, at an elevation of about 1,300 feet; it is east, north-east of the Cleary Hill mine (ARDF no. LG119). Accuracy is within 1,500 feet.
Geology: By 1912, a short adit had been driven on a north-south trending shear zone which contained arsenopyrite and stibnite (Smith, 1913; B 525). A shallow winze was sunk from the tunnel but the prospect was partially filled with water in 1912. The shear reportedly contained abundant gold; however, no production was known from the prospect.
Workings: By 1912, a short adit had been driven on a north-south trending shear zone which contained arsenopyrite and stibnite (Smith, 1913; B 525). A shallow winze was sunk from the tunnel but the prospect was partially filled with water in 1912.
Production: No production has been reported.

Commodities (Major) - Au; (Minor) - Sb
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).

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.

ⓘ Antimony

Mineral List

ⓘ Arsenopyrite

ⓘ Native Gold

ⓘ Stibnite

3 valid minerals.

Detailed Mineral List:

ⓘ Arsenopyrite

Formula: FeAsS

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

ⓘ Native Gold

Formula: Au

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

ⓘ Stibnite

Formula: Sb₂S₃

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold	1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Stibnite	2.DB.05	Sb₂S₃
ⓘ	Arsenopyrite	2.EB.20	FeAsS

List of minerals for each chemical element

S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Stibnite	Sb₂S₃
Fe	Iron
Fe	ⓘ Arsenopyrite	FeAsS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Sb	Antimony
Sb	ⓘ Stibnite	Sb₂S₃
Au	Gold
Au	ⓘ Native Gold	Au

Other Databases

Link to USGS - Alaska:	LG122

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

North America PlatformPassive Margin
Yukon-Tanana lower DomainDomain

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

Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate. Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p. Freeman, C.J., 1992, 1991 Golden Summit project final report, volume 2: Historical summary of lode mines and prospects in the Golden Summit project area, Alaska: Avalon Development Corp., 159 p. (Report held by Freegold Recovery Inc. USA, Vancouver, British Columbia.) Smith, P.S., 1913, Lode mining near Fairbanks, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 153-216. Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.

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