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Jack Shade Chromite

Past Producer in Josephine county in Oregon, United States with commodity Chromium
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Geologic information

Identification information

Deposit ID 10098503
MRDS ID M060538
Record type Site
Current site name Jack Shade Chromite
Alternate or previous names Black Prince, Hot Dog
Related records 10249696

Geographic coordinates

Geographic coordinates: -123.76033, 42.33204 (WGS84)
Elevation 808
(click for info)

Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 037S 009W 21 Oregon

Commodities

Commodity Importance
Chromium Primary

Materials information

Materials Type of material
Chromite Ore
Calcite Gangue
Talc Gangue

Analytical data

Result ONE ASSAY SAMPLE -47.54% CR2O3
Result 11.05% FE

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -123.76033, 42.33204
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Geologic structures

Type of structure Local
Structure description Small Shears May Have Drawn Out Smaller Ore Bodies

Ore body information

  • General form IRREGULAR PATCHES & BANDS
    Strike E-W
    Dip 20S
    Width 0.61M
    Length 1.22M

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Central Illinois River

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Production statistics

  • Year 1953
    Period 1941-1953
    Material ORE (CR)
    Accuracy Estimate
    Description Cp_Grade: ^43% Cr2o3 To 50% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Ore Chromium Chromium 47wt-pct

Comments on the production information

  • PRODUCTION FIGURES MAY NOT BE TOO ACCURATE

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M060538
U.S. Bureau of Mines Minerals Availability System MAS 0410330264

Bibliographic references

  • Deposit

    RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.

  • Deposit

    THAYER, T. P., 1974, UNPUBL. DATA

  • Deposit

    RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P

General comments

Subject category Comment text
Deposit OFFSET BY SEVERAL STEEPLY DIPPING FAULTS
Deposit RECORD NUMBER (M013639) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1984 Unknown U.S. Geological Survey
Updater 01-APR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries