Commodities
PrimaryManganese
SecondaryIron
Commodity typeM
Deposit
Model100: Volcanogenic Mn, Olympic Peninsula
Deposit sizeS
Orebody formLENS
Materials
Ore mineralsBementite, Goethite, Hematite, Limonite, Pyrolusite, Rhodonite
GangueChlorite, Pyrite, Quartz
Geology
Host rockArgillite · Crescent Formation;Crescent Formation
Tectonic settingActive Margin (Leading Edge Of North American Plate)
Economic & production
Development statusPast Producer
Identification
Deposit ID10047945
MRDS IDM700309
RegionNA
Data scoreB
Coordinates47.37257, -123.87766
References
MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OLYMPIC PENINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5530, P. 71-73, 77.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. 103.MAGILL, 1960