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Jagdlust Chrome Mine

Past Producer in South Africa with commodities Chromium, PGE, Iron, Silica
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10079233
MRDS ID W028404
Record type Site
Current site name Jagdlust Chrome Mine
Related records 10281470

Geographic coordinates

Geographic coordinates: 29.88474, -24.26335 (WGS84)
Elevation 762
Relative position 89 KILOMETERS EAST OF THE TOWN OF POTGIETERSRUS

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa
South Africa

Commodities

Commodity Importance
Chromium Critical Primary
PGE Critical Secondary
Iron Secondary
Silica Secondary

Comments on the commodity information

  • FLUORITE IS THE ONLY COMMODITY RECOVERED AT THIS MINE. A MANGANIFEROUS SOIL-LIKE CLAY EXISTS INTERMITTENTLY NEAR THE SURFACE AT THIS DEPOSIT (AS A WEATHERED PRODUCT OF THE FLUORITE-BEARING DOLOMITE), BUT IT HAS NO ECONOMIC IMPORTANCE.

Materials information

Materials Type of material
Chromite Ore
Magnetite Ore
Anorthosite Gangue
Chalcopyrite Gangue
Pentlandite Gangue
Pyrrhotite Gangue

Alteration

  • (Local) Surface And Near-Surface Alteration Of Feldspathic Material Only.

Analytical data

Result LUMP ORE, METALLURGICAL (T2 GRADE): SIZE: +12.7MM
Result CR2O3 44.2%, SIO2 3.9%, AL2O3 14.1%, FEO 24.9%, MGO 11.5%, CAO 0.3%, CR:FE 1.5:1. MINE-RUN FINES (T1 GRADE): SIZE: -12.7MM
Result CR2O3 44.5% SIO2 2.9%, AL2O3 15.8%, FEO 24.2%, MGO 10.8%, CAO 0.3%, CR:FE 1.5:1

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Rock unit name Bushveld Igneous Complex (Including The Overlying Merensky Reef)
    Rock description Bushveld Igneous Complex (Including The Overlying Merensky Reef)
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro

Nearby scientific data

(1) 29.88474, -24.26335
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Inward-Dipping Cone-Like Structure; Folding And Faulting (Including Low-Angle Thrusting) Exists, But Are Of Minor Importance; Erosion, Peneplanation And Build-Up Of Younger Sediments Are Basic Criteria Regionally.
Type of structure Local
Structure description The Area'S Upper, Middle And Lower Chrome Groups (Underlying The Merensky Reef) Are Extraordinarily Uniform As To Composition And Thickness. Faults And Folds, Locally, Are Of Minor Importance Only. Seam Undulations, However, Are Common And Thus Present Localized (Albeit Moderate) Changes In The Dip.

Ore body information

  • General form TABULAR/BLANKET
    Strike NW - SE
    Dip 25 DEG SW
    Thickness 1.5M

Controls for ore emplacement

  • The Various Components Of The Bushveld Igneous Complex Have Been Emplaced In Successive Eruptions As Sheet-Like Masses Into The Pretoria Series Volcanics (Transvaal System), And In Some Cases Into One Another, Dipping Inward Toward The Center Giving A Cone-Like Structure To The Complex As A Whole.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discoverer Ucar Chrome Co. S.A. (Pty) Ltd. (Union Carbide Corp., New York)
Year of first production 1974

Mining district

District name Eastern (Chromite Hills) Belt; Bushveld Igneous Complex

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Jagdlust Chrome Co. (Pty) Ltd

Production statistics

  • Year 1978
    Material ORE CR
    Accuracy Estimate
    Description Ap_Grade: ^44% Cr2o3 (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 44wt-pct
  • Year 1978
    Material CON CR
    Accuracy Estimate
    Description Ap_Grade: ^45% Cr2o3 (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Conc. Chromium Chromium 45wt-pct
  • Year 1979
    Material CON CR
    Accuracy Estimate
    Description Ap_Grade: ^45% Cr2o3 (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Conc. Chromium Chromium 45wt-pct
  • Year 1979
    Material ORE CR
    Accuracy Estimate
    Description Ap_Grade: ^44% Cr2o3 (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 44wt-pct
  • Year 1980
    Material CON CR
    Accuracy Estimate
    Description Ap_Grade: ^45% Sr2o3 Approximately
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Conc. Chromium Chromium 45wt-pct
  • Year 1980
    Material ORE CR
    Accuracy Estimate
    Description Ap_Grade: ^44% Cr2o3 Approximately
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 44wt-pct
  • Year 1981
    Period 1974-1981
    Material CON CR
    Accuracy Estimate
    Description Cp_Grade: ^45 % Cr2o3 Approx
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Conc. Chromium Chromium 45wt-pct
  • Year 1981
    Period 1974-1981
    Material ORE CR
    Accuracy Estimate
    Description Cp_Grade: ^44 % Cr2o3 Approx
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 44wt-pct

Comments on the production information

  • FIRST YEAR OF PRODUCTION: 1974 ; MINE HAS BEEN ON CARE AND MAINTENANCE FOR SOME TIME. NO PRODUCTION AVAILABLE SINCE 1981.
  • FIRST YEAR OF PRODUCTION NOT KNOWN. ESTIMATES PRIOR TO 1970 NOT POSSIBLE. ACCURATE PRODUCTION DATA NOT AVAILABLE. ESTIMATES BASED ON INDUSTRY INDICATORS AND MINERALS BUREAU COUNTRY TOTALS. ; NO PRODUCTION FIGURES AVAILABLE FOR 1982 ; NO PRODUCTION DATA AVAILABLE FOR 1983. WITKOP IS BELIEVED TO HAVE PRODUCED ABOUT 30% OF TOTAL SOUTH AFRICAN PRODUCTION IN 1983.

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Total resources 43000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 41 wt-pct Chromium Major 1975

Comments on the reserve resource information

  • INDICATED RESERVES TO A VERTICAL DEPTH OF 930 METERS. REPORTER'S ESTIMATES, FROM UCAR CHROME CO. BASE DATA.

Comments on the workings information

  • SEE DESCRIPTION OF DEPOSIT COMMENTS. MINING IS BY DEVELOPMENT DRIFTS AND INCLINES IN ORE TO CREATE MODIFIED ROOM AND PILLAR METHOD. RELATIVELY STEEP DIP (COMPARED TO MOST CHROMITE MINES) PERM ITS LOW COST MOVEMENT OF ORE DOWNDIP TO ORE PASSES, MECHANIZED HAULAGE UNDERGROUND AND INCLINED CONVEYOR HOISTING TO THE SURFACE. THE ORE IS SINGULARLY FREE FROM PYROXENITE LENSES (WASTE) AND IS GENERALLY HIGH GRADE. SURFACE FACILITIES THEREFORE REQUIRE ONLY WASHING, SCREENING AND PRODUCT SEPARATION.
  • SEE DESCRIPTION OF DEPOSIT COMMENTS. MINING IS PARTIALLY MECHANIZED (LARGELY FOR OVERBURDEN REMOVAL), BUT DEPENDS HEAVILY ON HAND LABOR FOR THE SELECTIVE REMOVAL OF THE ORE. BENEFICIATION PLANT CONSISTS OF CRUSHER, SCREENS, HEAVY MEDIA SEPARATION, BALL MILL, CLASSIFICATION, FLOTATION, THICKENING, FILTERS, DRYERS, AND BAGGING FACILITIES.

Comments on development

  • A NEW MINE IN AN OTHERWISE WELL KNOWN AND WELL ESTABLISHED MINING AREA. RECENT EXPLORATION AND DEVELOPMENT DATA (AS COMPANY-CONFIDENTIAL INFORMATION) ARE NOT AVAILABLE. ; MILL.CAP: 0.2 MIL. MET. T/YR ; ECON.COM: PRODUCTION AND MARKETING CURRENTLY LARGELY EXPORT ORIENTED, BUT TOTAL OUTPUT WOULD BE AVAILABLE IF REQUIRED FOR CAPTIVE SALES TO GENERAL MINING/UCAR CHARGE CHROME PLANT. ORE RESERVES ARE LARGE AND MINING COSTS ARE REPORTEDLY AT NOTABLY ECONOMIC LEVELS. A LONG MINE LIFE CAN BE FORECAST.
  • YEAR OF FIRST PRODUCTION NOT KNOWN PRECISELY, BUT KNOWN TO DATE BACK TO EARLY 1920'S. OUTPUT WAS INTERMITTENT ANNUALLY UNTIL ABOUT 1970 . ; MILL.CAP: 0.3 MIL. MET. T/YR ; ECON.YEAR: 1977 ; ECON.COM: AN UNCOMPLICATED OPEN PIT OPERATION, LARGELY LABOR-INTENSIVE. HAND SELECTIVE MINING METHODS EMPLOYED.

Reference information

Bibliographic references

  • Analytical Data

    SRC.REF: FERROUS AND NONFERROUS MINES AND WORKS IN SOUTH AFRICA; DEPARTMENT OF MINES, MINERALS BUREAU; DIRECTORY NO. 3/79; 1979

  • Deposit

    MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7, GEOLOGICAL SURVEY, DEPARTMENT OF MINES; 1976.

  • Deposit

    CHROMITE MINES AND RESOURCES IN THE REPUBLIC OF SOUTH AFRICA; UNIVERSITY OF IDAHO FOR M.A.S., US BUREAU OF MINES; SIEMS, P., CRIST, E. M., AND SHEEHAN, L. E., JR.; 1976 .

  • Deposit

    OPERATING MINES IN THE REPUBLIC OF SOUTH AFRICA; MINERALS BUREAU, DEPARTMENT OF MINES; DIRECTORY NO. 1/79; 1979 .

  • Deposit

    FERROUS AND NONFERROUS MINES AND WORKS IN SOUTH AFRICA; DEPARTMENT OF MINES, MINERALS BUREAU; DIRECTORY NO. 3/79; 1979 .

  • Deposit

    "CHROMITE DEPOSITS OF THE BUSHVELD IGNEOUS COMPLEX"; GEOLOGICAL SURVEY, DEPARTMENT OF MINES; KUPFERBURGER, W., AND LOMBAARD, B. V.; 1937

  • Production

    REPORTER'S ESTIMATES BASED ON INDUSTRY INDICATORS AND OFFICIAL (MINERALS BUREAU) COUNTRY TOTALS.

General comments

Subject category Comment text
Deposit OPERATIONS WERE SUSPENDED IN 1986.
Deposit INFORMATION MERGED FROM RECORD NUMBER W028902 ; W030779 ; W032263 ; W055315
Deposit MAX. THICKNESS REFER TO IN SITU WIDTH OF THE "MAIN" CHROMITE SEAM IN THE AREA'S "LOWER CHROME GROUP" OF THE BUSHVELD IGNEOUS COMPLEX. IT IS CURRENTLY THE ONLY SEAM MINED AT THIS OPERATION, THOUGH THIN SEAMS EXIST ABOVE AND BELOW THE MAIN SEAM. DEPTHS TO TOP AND BOTTOM (AND MAX. LENGTH AND WIDTH) ARE NOT KNOWN.
Deposit INFORMATION MERGED FROM RECORD NUMBER W028841 ; W030981 ; W032315 ; W032964 ; W044601 ; W044604

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1979 Sweetwood, Charles W. Department of State
Updater 01-JUL-1982 Mccarter, Lorna D. Department of State
Updater 01-MAY-1980 Sweetwood, Charles W. Department of State
Updater 01-JUL-1981 Mccarter, Lorna D. Department of State
Updater 01-JUL-1982 Mccarter, Lorna D. Department of State
Updater 01-JUL-1987 Mccarter, Lorna D. Department of State

Beyond USGS

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

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