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Griffin Chromite

Occurrence in Josephine county in Oregon, United States with commodities Chromium, Platinum, Palladium, Iridium, Ruthenium, Rhodium
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Geologic information

Identification information

Deposit ID 10042674
MRDS ID M060563
Record type Site
Current site name Griffin Chromite
Alternate or previous names Nickel Plate
Related records 10225379

Geographic coordinates

Geographic coordinates: -123.69116, 42.26815 (WGS84)
Elevation 472
Relative position 4 MI WEST OF SELMA; 6.5 MI WEST OF REDWOOD HIGHWAY
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Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 038S 008W 18 NW4 Oregon

Comments on the location information

  • IN ILLINOIS NATIONAL WILD AND SCENIC RIVER. 350 FT ABOVE AND 1,500 FT WEST OF ILLINOIS RIVER. UTM GIVEN IS FOR PGE SAMPLE SITE LOCATION. LAT/LONG GIVEN IS FOR MINE SYMBOL SHOWN WEST OF ILLINOIS RIVER; UTM FOR THIS IS 4679570N, 443150E. THIS MAY, HOWEVER, BE PART OF THE PLACER OPERATIONS ALONG THE RIVER.

Commodities

Commodity Importance
Chromium Primary
Platinum Tertiary
Palladium Tertiary
Iridium Tertiary
Ruthenium Tertiary
Rhodium Tertiary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result COBBED ORE ASSAYED 44.52% CR2O3, ANOTHER SAMPLE 53.47% CR2O3
Result MOSTLY 20-29% CR2O3
Result 1 PGE ANALYSIS: PT=<10
Result PD=<4 PPB
Result IR=60 PPB
Result RU=300 PPB
Result RH=82 PPB.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Josephine Ophiolite
    Rock description Josephine Ophiolite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -123.69116, 42.26815
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Geologic structures

Type of structure Local
Structure description Possible Landslide Block

Ore body information

  • General form NARROW IRREGULAR BANDS
    Strike N50-55E
    Dip 40-65N
    Width 1.22M

Comments on the geologic information

  • SERPENTINE CONTAINS TERMOLITE/CHRYSOTILE STRINGERS

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Illinois River Area

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Ownership information

  • Type Operator
    Owner Knippel, Ed
    First year 1953
  • Type Owner
    Owner Boyd, Ed And Doris
    First year 1958

Production statistics

  • Year 1942
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^44% Cr2o3 (Conc.)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 44wt-pct

Comments on the production information

  • PRODUCTION RECORD NOT COMPLETE - WORKED WW1-1953; NOT MORE THAN 100 TONS COULD BE DEVELOPED; PROPERTY IS NOT ADEQUATELY OPENED

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 7.62M

Comments on the workings information

  • 25 FT SHAFT, 45 FT TRENCH, 15 FT TRENCH, ALSO A GLORY HOLE AND TUNNEL.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M060563
U.S. Bureau of Mines Minerals Availability System MAS 0410330243

Bibliographic references

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 138-140.

  • Deposit

    THAYER, T.P., 1974, U.S. GEOLOGICAL SURVEY, UNPUB. DATA.

  • Deposit

    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.

  • Deposit

    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 1.

  • Deposit

    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. 132-133.

  • Deposit

    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.

General comments

Subject category Comment text
Deposit 5 FT WIDE LENS OF BANDED ORE WHERE BANDS ARE USUALLY LESS THAN 1 IN. THICK BUT MAY REACH SEVERAL INCHES THICK. OTHER ATTITUDES WERE N30E AND VERTICAL, N60E AND 64NW

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Johnson, Maureen G. U.S. Geological Survey
Updater 01-FEB-1981 Ferns, Mark L. (Brooks, Howard C.) Oregon Department of Geology and Mineral Industries
Updater 01-MAY-1989 Peterson, Jocelyn A. U.S. Geological Survey