Commodities
PrimaryCopper
SecondaryGold, Silver
TertiaryTungsten, Molybdenum, Nickel
Commodity typeM
Deposit
Model79: Porphyry Cu-Mo
Deposit sizeY
WorkingsSurface/Underground
Orebody formSTOCKWORK, DISSEMINATED
Materials
Ore mineralsBornite, Chalcopyrite, Copper, Molybdenite, Pyrite, Pyrrhotite
GangueBiotite, Orthoclase, Plagioclase, Quartz, Sericite, Talc
Geology
Host rockDiorite · Ingalls Tectonic Complex;Spirit Lake Stock
StructureSeveral Shear Zones
Tectonic settingCascade Volcanic Arc
AlterationPotassic, Phyllic, Propylitic
Economic & production
Development statusPast Producer
First production1917
Discovery year1885
Identification
Deposit ID10042397
MRDS IDM060165
Alternate namesVan Epps, Phantom Creek, Fortune Creek, Nelson, Copper King
RegionNA
Data scoreB
Coordinates47.50121, -120.97507
References
HUNTTING, M.T. 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 49-50.HUNTTING, M.T. 1943, INVENTORY OF MINERAL PROPERTIES IN CHELAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 9, P. 29.HODGES, L.K. 1897, MINING IN THE PACIFIC NORTHWEST: SEATTE POST-INTELLIGENCER 116 P.SMITH, G.O., 1904, GEOLOGIC ATLAS OF THE UNITED STATES, MOUNT STUART FOLIO, WASHINGTON: U.S. GEOLOGICAL SURVEY FOLIO 106, SCALE 1:125,000.HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 29.GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724, P. 45.GUALTIERI, J.L., SIMMONS, G.C., THURBER, H.K., AND MILLER, M.S., 1973, MINERAL RESOURCES OF THE ALPINE LAKES STUDY AREA, CHELAN, KING, AND KITTITAS COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 1918, P. 89-98.HUNTTING, 1956, P. 49-50