The Harrais is a copper mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Harrais MRDS details
Site Name
Primary: Harrais
Commodity
Primary: Copper
Secondary: Zinc
Secondary: Silver
Secondary: Lead
Location
State: Alaska
District: Nizina
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Marble
Role: Host
Age Type: Host Rock
Age Young: Late Permian
Name: Marble
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Azurite
Ore: Bornite
Ore: Chalcopyrite
Ore: Galena
Ore: Malachite
Ore: Sphalerite
Comments
Comment (Reference): Primary Reference = Seitz, 1963
Comment (Workings): Workings / Exploration = Several short drifts and surface workings. Assay of massive sulfide pod showed: 4.78 percent Cu, 6.53 percent Pb, 13.15 percent Zn (Seitz, 1963).
Comment (Deposit): Model Name = Lode: massive, disseminated.
Comment (Geology): Geologic Description = Small, sporadically distributed pods and disseminations of chalcopyrite, galena, sphalerite, bornite, pyrite, silver, malachite and azurite. Localized in shear zones mainly in Permian marble.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.
Reference (Deposit): Seitz, J.F., 1963, Copper prospect in the upper Chitina Valley, Alaska, in Contributions to Economic Geology of Alaska: U.S. Geological Survey Bulletin 1155, p. 66-72.
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