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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Millsell

Plant in South Africa with commodity Chromium
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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. Mining district
  11. Ownership information
  12. Production statistics
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10232487
MRDS ID W028414
MAS/MILS ID 7910200013
Record type Site
Current site name Millsell
Alternate or previous names Millsell Mine, Gould Mine-Buffelsfontein Sect, Henry Gould Mine
Related records 10089696

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 27.29315, -25.70493 (WGS84)
Elevation 939
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Plagioclase Unknown
Pyroxene Unknown

Nearby scientific data

Ore Body (1) 27.29315, -25.70493
ListMap

Economic information

Ore body information

  • Strike N45W
    Dip 10N
    Thickness 1M
    Length 1900M
    Width 1230M
    Depth to top 100M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Strike And Dip N45W:10N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830729
  • Strike N45W
    Dip 10E
    Thickness 0.9M
    Length 2000M
    Width 1300M
    Depth to top 150M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    Type of Orebody #1 STRATIFORM
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Type of Wallrock Alter. #1 SILICIFICATION
    Strike And Dip N45W:10E
    Minimum Depth to Top 0
    Date of Last Modification 930520

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1931
Mining method Open Stope - Breast Stoping
Year of first production 1956
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Gravity

Mining district

District name Rustenburg District

Ownership information

  • Type Operator
    Owner Rand Mines Ltd.
    Home office South Africa
    Year 1989
  • Type Owner
    Owner Barlow Rand Ltd.
    Interest 100
    Home office South Africa
    Year 1989

Comments on the ownership information

  • THE BARLOW-RAND LTD. OWNES 59% OF TRANSVAAL WHICH OWNS 100% OF MILLSELL

Production statistics

  • Year 1974
    Description Annual Production 1974 120000 Mt Prod. / Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Chromium Chromium 120000mt
  • Year 1977
    Period 1975 - 1977
    Description Annual Production 1975 - 1977 130000 Mt Prod. / Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Chromium Chromium 130000mt
  • Year 1981
    Period 1978 - 1981
    Description Annual Production 1978 - 1981 120000 Mt Prod. / Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Chromium Chromium 120000mt
  • Year 1982
    Description Annual Production 1982 100000 Mt Prod. / Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Chromium Chromium 100000mt
  • Year 1983
    Description Annual Production 1983 40000 Mt Prod. / Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Chromium Chromium 40000mt

Comments on the production information

  • OPERATION WAS SHUT DOWN IN 1983. ANALYSIS 1/89 ASSUMES START-UP IN 1986 AT 196,000 MT PRODUCTS / YEAR.

Comments on the reserve resource information

  • SHUT DOWN IN APRIL 1983 DUE TO POOR FOUNDRY SAND MARKET. MAY HAVE STARTED BACK UP SINCE BUT NOT SURE( E.B.,1990). ASSIGNED LAND POSITION: 2,000 M STRIKE LENGTH ON WATERKLOOF 305 JQ FARM (FROM FAR EASTERN EDGE OF FARM 3/4 OF WAY TO W. BOUNDARY). 196,000 MTPY ROM FOR: 10,000 MTPY LUMP AT 42.0% CR2O3 AND 104,000 MTPY FOUNDRY SAND AT 45.3% CR2O3. COSTED AS HIGHLY MECHANIZED.
  • 1/89 INSITU DEMO.TONNAGE= .84 M LG6 SEAM + .3 M LG6A SEAM + .3 M WASTE TO 300 M VERT.DEPTH. 75 % RECOV.
  • RESOURCE TONNAGE IS FOR TWO SEAMS (LG 6 SEAM AND LEADER SEAM). CALCULATED TO VERT. DEPTH OF 300 M. COL 1 IS THE IN-SITU TONNAGE AND COL 2 IS THE RECOVERABLE RESOURCE TONNAGE. RESOURCE IS LIMITED BY THE WESTERN BOUNDARY (BELONGING TO WATERKLOOF), AND BY THE 250 M VERT. DEPTH NORTH DOWN DIP (BELONGS TO RUSTENBURG PLATINUM.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method BREAST STOPING 10-30
    Percent Recovery 75
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Length of Inclines (m) 750
    Slope of Inclines 10
    Number of Inclines 3
    1st Condition of Workings OPEN
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

    RANKIN, G., 1975, CHROMIUM AND FERROCHROMIUM IN SOUTH AFRICA

  • Deposit

    PEP-PILL" JULY 1980

  • Deposit

    TEX REPORT "CHROME MINES IN SOUTH AFRICA" TOKYO PP. 89-103

  • Deposit

    GOLDER AND ASSOC., 1981, "DEPOSIT PROFILE - MILLSELL, TRAN-

  • Deposit

    SVAAL, SOUTH AFRICA.

  • Deposit

    SILK M H, 1988, "WORLD CHROMITE RESOURCE AND FERROCHROMIUM

  • Deposit

    PRODUCTION", MINTEK SPECIAL PUBL. NO. 11.

  • Deposit

    DAVIDOFF R L, BOYLE E H JR., 1988, "NOTES FROM VISIT TO THE

  • Deposit

    REBUBLIC OF SOUTH AFRICA", USBM.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-MAY-1993 Boyle, Ed 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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