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Morgan Hill Chromite Prospect

Past Producer in Buncombe county in North Carolina, United States with commodities Chromium, Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10296650
MRDS ID K005129
MAS/MILS ID 0370210002
Record type Site
Current site name Morgan Hill Chromite Prospect
Alternate or previous names Morgan Hill Church Prospect
Related records 10026486

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -82.50706, 35.7718 (WGS84)
Elevation 683
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Buncombe(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mars Hill(quadrangle 1:24,000 scale)

Asheville(quadrangle 1:100,000 scale)

Knoxville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper French Broad(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States North Carolina Buncombe

Commodities

Commodity Importance
Chromium Critical Primary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Clay Unknown
Olivine Unknown
Talc Unknown
Vermiculite Unknown

Nearby scientific data

Ore Body (1) -82.50706, 35.7718
ListMap

Economic information

Ore body information

  • Thickness 1.5M
    Length 305M
    Width 79M
    Area 4HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 PLACER
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1.5
    Total Surface Area (HA) 4
    Date of Last Modification 800416

Comments on the geologic information

  • THE CHROME BEARING SAND HAS ITS ORIGIN IN SERPENTINITE SUBSEQUENT WEATHERING AND EROSION FREED CHROMITE WHICH ACCUMULATED AS A MINABLE SAND AND GRAVEL PLACER

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1870
Mining method Open Pit
Milling method Gravity

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Private

Comments on the production information

  • CR:FE RATIO IS ESTIMATED AS 1.9
  • DEPOSIT HAS BEEN A MINOR PRODUCER

Reserves and resources

  • Type In-situ
    Estimate year 1942
    Total resources 74000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 3.5 wt-pct Chromium Major 1942

Comments on the reserve resource information

  • REF. R001-3 GIVES GRADE OF 3.5% CR2O3; BACKUP ORIGINAL WORK REPORTS 3.5% CHROMITE CONCENTRATE. THIS REPORT USES LATTER FIGURE TO GENERATE 1.94% CR2O3 GRADE
  • OTHER NAME: MORGAN HILL CHURCH PROSPECT. DEPOSIT HAS BEEN A MINOR PRODUCER. CR: FE RATIO EST. S 1.9:1.
  • RC1=M1C1, M9C4 = M1C1.

Workings at the site

  • Type of workings Surface
    Area 2.4HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .88
    Percent Waste Rock 0
    Avg. Overburden Thickness 0
    Hardness of Ore SAND, SILT
    Capacity 100
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 2.75
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1979

Reference information

Bibliographic references

  • Reserve-Resource

    HUNTER,C.E.,T.G.MURDOCK,AND G.R.MACCARTHY. CHROMITE DEPOSITS

  • Reserve-Resource

    OF N.C., N.C. DEPT. CONSERV. AND DEV., DIV. MIN. RES.

  • Reserve-Resource

    BULL. 42, 1942, P.5-8.

  • Deposit

    BENTZEN,E.H.III. CHEM. COMPOSITION OF SOME N.C. CHROMITE,

  • Deposit

    ECON. GEOL, V.65, 1970, PP.883-885.

  • Deposit

    J. VOLNEY LEWIS (1922) USGS BULLETIN 725 "DEPOSITS OF CHROME

  • Deposit

    NORTH CAROLINA" PP. 130-132.

  • Deposit

    U.S. BUREAU OF MINES (1943) WAR MINERALS MEMORANDUM E15

  • Deposit

    STUCKEY,J.L.,&S.G.CONRAD. EXPLANATORY TEXT FOR GEOL. MAP

  • Deposit

    OF N.C. N.C. DEPT. OF CONSERVATION AND DEVELOPMENT BULL. 71,

  • Deposit

    1958, PP.19-20.

  • Deposit

    TEXT FOR GEOLOGIC MAP OF NORTH CAROLINA" PP. 19-20.

  • Deposit

    HUNTER,W.L. AND G.V.SULLIVAN.UTILIZATION STUDIES ON

  • Deposit

    CHROMITE FROM SEIAD CREEK, CA. BUMINES RI5576,1960,P.22

Reporter information

Type Date Name Affiliation Comment
Reporter 25-SEP-96 Dw,Mf,Cp U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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