Commodities
PrimarySapphire
Commodity typeN
Materials
Ore mineralsCorundum
GangueMuscovite, Orthoclase, Microperthite
Geology
Host rockPegmatite
Associated rockGneiss
Economic & production
Development statusProspect
Identification
Deposit ID10000743
MRDS IDA011383
Alternate namesRock Creek Corundum
RegionNA
Data scoreC
Coordinates62.59663, -143.35065
References
Richter, D.H., 1970, A corundum occurrence in the eastern Alaska Range, Alaska: U.S. Geological Survey Professional Paper 700-C, p. C98-C102.Richter, D.H., and Schmoll, 1973, Geologic Map of the Nabesna C-5 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1062, scale 1:63,360.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, scale 1:250,000.Matson, N.A., and Richter, D.H., 1971, Geochemical data from the Nabesna C-5 quadrangle, Alaska: U.S. Geological Survey Open-File Report 71-0204, 10 p.