Commodities
PrimaryCopper
SecondaryGold, Silver
TertiaryIron
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formDISSEMINATED IN FRACTURE
Ore controlFault Intersections
Materials
Ore mineralsChalcocite, Chalcopyrite, Gold, Hematite, Pyrite, Tetrahedrite
GangueBarite, Calcite, Quartz
Geology
Host rockAndesite · Andesite Of Isabella Ridge
Associated rockMafic Intrusive Rock
StructureEightmile Creek Fault Trends N30w. It Starts About 30 Mi To The South And Extends Into British Columbia, Where It Becomes Part Of The Frazer River Fault System. Near Mine Fault Dips Steeply West. Adjacent Rocks Are Commonly Sheared And Brecciated; On East Side Rocks Are Foliated Up To 3 Mi From Fault. Throw On Fault Is Unknown But Must Be Large Based On Opposing Rock Types.
Tectonic settingCascade Volcanic Arc
Economic & production
Development statusPast Producer
First production1914
Identification
Deposit ID10042395
MRDS IDM060163
Alternate namesCraggy Peak
RegionNA
Data scoreB
Coordinates48.75205, -120.30341
References
HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 63.STAATZ M.H., AND OTHERS, 1971, MINERAL RESOURCES OF THE PASAYTEN WILDERNESS AREA, WASHINGTON: U.S. GEOLOGICAL SURVEY BULLETIN 1325, P. 22, 43, 44, 106, PL. 1-2.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. 188.DERKEY, R.E., GULICK, C.W., LINGLEY, W.S., JR., 1993, WASHINGTON'S MINERAL INDUSTRY - 1992: WASHINGTON GEOLOGY, V. 21, NO. 1, P. 3-25.