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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Unnamed Occurrence (ARDF - IB001; beach between Yahtse River and Yana Stream), Yakataga Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - IB001; beach between Yahtse River and Yana Stream)- not defined -
Yakataga Mining DistrictMining District
Valdez-Cordova Census AreaCensus Area
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
59° 49' 24'' North , 141° 11' 6'' West
Latitude & Longitude (decimal):
59.82333,-141.18500
GeoHash:
G#: bfes7680p
GRN:
N40W54
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
200811
Long-form identifier:
mindat:1:2:200811:3
GUID (UUID V4):
0


Location: This occurrence is on the present Gulf of Alaska shoreline between the mouth of the Yana Stream and Yahtse River. It is 1.5 miles southeast of USGS benchmark Grit and eight-tenths of a mile northwest of USGS benchmark Yahtse. The occurrence, in the SE1/4 section 19, T. 24 S., R. 25 E., of the Copper River Meridian, is locality 8 of Cobb (1972 [MF 411]; 1979 [OF 79-1246]).
Geology: Thomas and Berryhill (1962) collected an auger sample of beach sand at this location that contained 0.1 pound of titanium oxide per cubic yard in the magnetic fraction (which also contained 0.6 pound of iron per cubic yard) and 1.2 pounds of titanium oxide per cubic yard in the non-magnetic fraction. It also contained a trace of gold. Beach sands along this segment of the Gulf of Alaska shoreline contain trace amounts of ilmenite, magnetite, rutile, pyrite, garnet, sphene, and zircon (Thomas and Berryhill, 1962).
Workings: Reconnaissance characterization of beach samples has been completed in this area (Thomas and Berryhill, 1962).
Age: Holocene.

Commodities (Major) - Au, Ti
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a - beach)

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.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘRutile4.DB.05TiO2
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

OOxygen
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ RutileTiO2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ ZirconZr(SiO4)
Oⓘ Garnet GroupX3Z2(SiO4)3
SiSilicon
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ ZirconZr(SiO4)
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ PyriteFeS2
CaCalcium
Caⓘ TitaniteCaTi(SiO4)O
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
FeIron
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
ZrZirconium
Zrⓘ ZirconZr(SiO4)
AuGold
Auⓘ Native GoldAu

Other Databases

Link to USGS - Alaska:IB001

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America Plate
Pacific OceanOcean
Pacific 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

Cobb, E.H., 1972, Metallic mineral resources map of the Icy Bay quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-411, 1 sheet, scale 1:250,000. Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bering Glacier, Icy Bay, Middleton Island, and Yakutat quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-1246, 41 p. Thomas, B.I., and Berryhill, R. V., 1962, Reconnaissance studies of Alaskan beach sands, eastern Gulf of Alaska: U.S. Bureau of Mines Report of Investigations 5986, 40 p.
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