Latitude & Longitude (WGS84):
58° 56' 49'' North , 161° 45' 46'' West
Latitude & Longitude (decimal):
Mindat Locality ID:
199632
Long-form identifier:
mindat:1:2:199632:9
Location: This occurrence is on the west flank of Red Mountain, at an elevation of about 650 feet. It is sample locality 44 of Berryhill (1963) and is approximately located, probably within about 1/4 mile. It is locality 6 of Cobb (1972 [MF 362]; 1980 [OF 80-909]).
Geology: Berryhill (1963, sample locality 44) collected a shovel sample of surface materials at this location and determined that the heavy mineral concentrates contained small amounts of chromite (1 to 10 percent) and traces of Pt and Au. Augite, hornblende, and olivine were reported to be present in amounts exceeding 10 percent. This occurrence is on the steeper part of the west flank of Red Mountain, a composite ultramafic pluton containing abundant dunite. The surface materials at this site are expected to be mostly colluvial and to have been derived directly from erosion of the Red Mountain pluton.
Workings: No workings are present.
Age: Holocene.
Commodities (Major) - Cr; (Minor) - Au, Pt
Development Status: None
Deposit Model: Placer PGE-Au (Cox and Singer, 1986; model 39b)
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
List of minerals for each chemical element
|
H | Hydrogen |
|---|
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
O | Oxygen |
|---|
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
|---|
| O | ⓘ Fayalite-Forsterite Series |
|---|
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
F | Fluorine |
|---|
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
Mg | Magnesium |
|---|
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
|---|
| Mg | ⓘ Fayalite-Forsterite Series |
|---|
|
Al | Aluminium |
|---|
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
Si | Silicon |
|---|
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
|---|
| Si | ⓘ Fayalite-Forsterite Series |
|---|
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
Cl | Chlorine |
|---|
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
Ca | Calcium |
|---|
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
|---|
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
|---|
|
Cr | Chromium |
|---|
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
|---|
|
Fe | Iron |
|---|
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
|---|
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
|---|
| Fe | ⓘ Fayalite-Forsterite Series |
|---|
Other Databases
| Link to USGS - Alaska: | HG003 |
|---|
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References
Berryhill, R.V., 1963, Reconnaissance of beach sands, Bristol Bay, Alaska: U.S. Bureau of Mines Report of Investigations 6214, 48 p. Cobb, E.H., 1972, Metallic mineral resources map of the Hagemeister Island quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-362, 1 sheet, scale 1:250,000. Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.
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