Commodities
PrimaryNickel, Gold
TertiaryChromium
Commodity typeM
Deposit
Deposit typeUnknown
Deposit sizeN
WorkingsSurface/Underground
Orebody formTABULAR
Ore controlFault Zone Between Serpentine And Eocene Sandstone.
Materials
Ore mineralsBravoite, Chromite, Marcasite, Pyrite
GangueAnkerite, Calcite, Chalcedony, Chlorite, Dolomite, Opal, Quartz, Serpentine
Geology
Host rockGreenstone · Haystack Terrane;Haystack Terrane
StructureDevils Mountain Fault Zone Near Crest Of Devils Mountain Anticline, Shear Zone; Ore Body Lies On South Limb Of Large Anticlinal Fold
Tectonic settingActive Margin (Leading Edge Of North American Plate)
AlterationOxidation Of Sulfides Producing Much Limonite
Economic & production
Development statusOccurrence
Discovery year1915
Identification
Deposit ID10047917
MRDS IDM700267
Alternate namesDevils Mountain, Pacific
RegionNA
Data scoreC
Coordinates48.3687, -122.29291
References
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 278.HUNTTING, M.T., 1955, GOLD IN WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 42, P. 87.HOBBS, S.W., AND PECORA, W.T., 1941, NICKEL-GOLD DEPOSIT NEAR MOUNT VERNON, SKAGIT COUNTY, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 931-D, P. 57-78.DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 332.HOBBS AND PECORA, 1941