Latitude & Longitude (WGS84):
62° 31' 9'' North , 141° 9' 39'' West
Latitude & Longitude (decimal):
Mindat Locality ID:
201381
Long-form identifier:
mindat:1:2:201381:0
Location: This occurrence is in the high part of the uplands south of Mirror Creek. It is at an elevation of about 2,700 feet, about 500 feet north of elevation 2835. The occurrence is in the NE1/4 of section 31, T. 9 N., R. 23 E. of the Copper River Meridian. This is locality 57 of Richter and others (1975). It is located to within several hundred feet.
Geology: Cobble-sized float of massive chromite occurs at this locality (Richter and others, 1975). The chromite was eroded from a band of alpine-type ultramafic rocks that trends east-west for about 1 mile in this area (Richter, 1976).
Age: Cretaceous? This is the inferred age of the alpine-type ultramafic body (Richter, 1976).
Commodities (Major) - Cr
Development Status: None
Deposit Model: Podiform chromite (Cox and Singer, 1986; model 8b)
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
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides |
|---|
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | NB019 |
|---|
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References
Richter, D.H., 1976, Geologic map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-932, 1 sheet, scale 1:250,000. Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, 1 sheet, scale 1:250,000.
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.
doi:10.2138/am-2024-9486.
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