Commodities
PrimaryCopper, Nickel
SecondaryCobalt
TertiaryGold, Silver, Vanadium, Uranium, Arsenic
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENSES, DISSEMINATED
Materials
Ore mineralsChalcocite, Chalcopyrite, Chloanthite, Chrysocolla, Cubanite, Erythrite, Garnierite, Gold, Magnetite, Malachite, Niccolite, Pentlandite, Sphalerite
GangueCalcite, Quartz, Serpentine
Geology
Host rockArkose · Eastern Melange Belt;Swauk Formation
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusPast Producer
Discovery year1900
Identification
Deposit ID10068218
MRDS IDW001168
Alternate namesWeden Creek
RegionNA
Data scoreB
Coordinates47.9812, -121.44315
References
COLE, J.W., 1944, MACKINAW METALS MINE, SNOHOMICH COUNTY, WASHINGTON: U.S. BUREAU OF MINES WAR MINERALS REPORT 156, 11 P.MILTON, CHARLES, AND MILTON, D.J., 1958, NICKEL-GOLD ORE OF THE MACKINAW MINE, SNOHOMISH COUNTY, WASHINGTON: ECONOMIC GEOLOGY, V. 53, NO. 4, P. 426-447.CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1223, P. 56-57.HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 87.TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE1:100,000.UNPUB. COBALT REPORT