Oregon · Josephine County
Producer
Oregon Chrome Mine
Josephine County, Oregon, United States
Chromium Platinum Palladium Ruthenium Rhodium Iridium
Land & claims · BLM · live
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Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.
Commodities
PrimaryChromium
TertiaryPlatinum, Palladium, Ruthenium, Rhodium, Iridium
Commodity typeMetallic
Deposit
Model15: Podiform chromite (minor)
Deposit sizeSmall
Orebody formTABULAR
Ore controlMagmatic Segregation
Materials
Ore mineralsChromite
GangueOlivine, Serpentine
Geology
Host rockDunite · Pearsoll Peak Ophiolite
StructureNear Axis Of A Southwest-Plunging Syncline, Shearing And Stretching Of Original Layer
Tectonic settingKlamath Mountains Accreted Terrane
AlterationSerpentinization
Economic & production
Development statusProducer
Discovery year1917
Community notes
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References
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 50-53.THAYER, T.P., 1974, U.S. GEOLOGICAL SURVEY, UNPUB. DATA.PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLE, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.RAMP, LEN, AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 100, TABLE 7.OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES, 1952, OREGON METAL MINES HANDBOOK, SOUTHWESTERN OREGON--JOSEPHINE COUNTY (2D ED.): OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 14-C, V. 2, SEC. 1, P. 139-140.CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.STATISTICS PREPARED BY MRS. WM. ROBERTSON; THAYER RECORDS AGREE
Identification
Deposit ID10042661
MRDS IDM060541
Alternate namesRobertson
RegionNA
Data scoreB
Coordinates42.34454, -123.7756
Base: USGS MRDS (public domain, frozen 2011). Community notes © their authors, CC-BY. Land data live from BLM.