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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Chenega; Latouche Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types
Chenega; Latouche ProspectProspect
Prince William Sound Mining DistrictMining District
Valdez-Cordova Census AreaCensus Area
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
60° 3' 2'' North , 147° 53' 42'' West
Latitude & Longitude (decimal):
60.05056,-147.89500
GeoHash:
G#: bdwvdef5u
GRN:
N41W54
Type:
Prospect
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
196883
Long-form identifier:
mindat:1:2:196883:8
GUID (UUID V4):
0


Location: The prospect is located 0.25 mile north of the Beatson mine (SR306) at an elevation of 257 feet. It is in the NW1/4 section 34, T. 1 S., R. 9 E., of the Seward Meridian. This is location 255 of Tysdal (1978 [MF-880-A]) and location S-18 of Jansons and others (1984). This location is accurate to within 300 feet.
Geology: The prospect consists of a 95-foot adit that strikes S80E and follows a highly fractured black shale and silicified mudstone that contains blebs and stingers of pyrite and chalcopyrite (Kurtak and Jeske, 1986). Nelson and others (1985) mapped this area as Orca Group of early Teriary age. Within the adit, the first 65 feet contains as much as 1 percent malachite and chalcopyrite, whereas the last 30 feet contains less than 1 percent chalcopyrite (Kurtak and Jeske, 1986). Two grab samples from the adit contained 290 ppm and 1.2 percent copper and 0.4 and 6.4 ppm silver (Kurtak and Jeske, 1986). Moffit and Fellows (1951) reported that the Chenega working was connected to the Beatson mine (SR306) at one time.
Workings: Workings on the Chenega prospect consist of a 95-foot-long adit. Within the adit the first 65 feet adit contains 1 percent malachite and chalcopyrite, whereas the last 30 feet contains less than 1 percent chalcopyrite (Kurtak and Jeske, 1986). Two grab samples from the adit contained 290 ppm and 1.2 percent copper and 0.4 and 6.4 ppm silver (Kurtak and Jeske, 1986). Moffit and Fellows (1950) report that the Chenega working was connected to the Beatson mine (SR306) at one time.
Age: Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.

Commodities (Major) - Cu
Development Status: Undetermined.
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)

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


3 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 5 - Nitrates and Carbonates
ⓘMalachite5.BA.10Cu2(CO3)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ MalachiteCu2(CO3)(OH)2
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ PyriteFeS2
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2

Other Databases

Link to USGS - Alaska:SR307

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
Pacific OceanOcean

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

Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Mineral Land Assessment 5-84, 218 p., 2 sheets, scale 1:250,000. Kurtak, J.M., and Jeske, R.E., 1986, Mineral investigations in the Chugach National Forest, Alaska (Islands area): U.S. Bureau of Mines Open-File Report 54-86, 302 p., 1 sheet. Moffit, F.H., and Fellows, R.E., 1950, Coper deposits of the Prince William Sound district, Alaska: U.S. Geological Survey Bulletin 963-B, p. 47-80. Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000. Tysdal, R.G., 1978, Mines, prospects, and occurrences map of the Seward and Blying Sound quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-880-A, 2 sheets, scale 1:250,000.
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