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 - CG009; on coast near Ilnik), Aleutians East Borough, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - CG009; on coast near Ilnik)- not defined -
Aleutians East BoroughBorough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
56° 36' North , 159° 36' West
Latitude & Longitude (decimal):
56.60000,-159.60000
GeoHash:
G#: b6n9bpwyf
GRN:
N38W66
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
200597
Long-form identifier:
mindat:1:2:200597:6
GUID (UUID V4):
0


This deposit is located on state land.
Location: This site represents beach placer deposits on the shore of Bristol Bay extending 3 miles to the southwest and 12 miles to the northeast of Ilnik Lake.
Geology: The Ilnik beach deposit is a long spit bordering low-lying shallow swamps and mudflats. The mile-wide spit is capped by extensive dunes. The sediment is generally sand or loose gravel. Thin surface veneers of magnetite and ilmenite occur along the strand line as surf and wind concentrates. Berryhill (1963) collected samples from 25 auger holes along approximately 15 miles of beach. Concentrates of this material contained 2.5 to 57.4 pounds of iron and 0.6 to 11.5 pounds of titanium per cubic yard in the magnetic fraction. In the non-magnetic fraction the concentrates contained 0 to 2.1 pounds of titanium per cubic yard.
Workings: Twenty-five auger holes were drilled and the resulting samples were concentrated and analysed for iron and titanium. The magnetic fraction contained 2.5 to 57.4 pounds of iron and 0.6 to 11.5 pounds of titanium per cubic yard. The non-magmetic fraction contained 0 to 2.1 pounds titanium per cubic yard.
Age: Quaternary.

Commodities (Major) - Fe, Ti
Development Status: None
Deposit Model: Shoreline placer titanium (Cox and Singer, 1986; model 39c)

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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 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3

List of minerals for each chemical element

OOxygen
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4

Other Databases

Link to USGS - Alaska:CG009

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Berryhill, R.V., 1963, Reconnaissance of beach sands, Bristol Bay, Alaska: U.S. Bureau of Mines Report of Investigations 6214, 48 p.
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