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Hotazel Mine

Producer in Eastern Cape, South Africa with commodities Manganese, 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. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10107356
MRDS ID W028037
Record type Site
Current site name Hotazel Mine
Related records 10231527

Geographic coordinates

Geographic coordinates: 22.95152, -27.21329 (WGS84)
Elevation 1035
Relative position 60 KILOMETERS NORTHWEST OF THE TOWN OF KURUMAN

Site location context

Political divisions (FIPS codes)

Eastern Cape(province)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
South Africa Eastern Cape

Commodities

Commodity Importance
Manganese Critical Primary
Iron Secondary

Comments on the commodity information

  • COMBINED METAL CONTENT HIGH, AT ABOUT 61 PERCENT, BUT MANGANESE TO IRON RATIO CONSIDERED ONLY FAIR. LOW PHOSPHOROUS AND SULFUR CONTENTS COMBINE TO MAKE THE ORE AN EXCELLENT BLEND MATERIAL WITH MANGANESE FROM OTHER SOURCES.

Analytical data

Result SEE PRODUCTION ENTRIES

Mineral occurrence model information

Model code 242
USGS model code 34b
Deposit model name Sedimentary Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation

Nearby scientific data

(1) 22.95152, -27.21329
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Low Intensity Anticlines And Synclines Regionally. Post-Transvaal System Dike Intrusives (Granitic) Occur Intermittently. Faulting Intermittent And Of Limited Magnitude.
Type of structure Local
Structure description Orebodies Occur In N - S Trending Asymmetrical Syncline. Dips Gentle, Though Variable. Minor Faulting. Basal Ore Horizon (Bottom Orebody) Massive. Major Dike Intrusive Cuts Through (But Does Not Control) Ore Generally In The Center Of The Deposit. Recent, Surface, Sand Fully Masks Off Visible Presence Of The Underlying Formations. Topography Flat.

Ore body information

  • General form IRREGULAR
    Thickness 17M
    Length 1600M
    Width 400M
    Depth to top 40M
    Depth to bottom 57M
  • General form IRREGULAR

Controls for ore emplacement

  • Gentle Uplift Of Continental Mass; Minor Folding And Faulting; Erosion; Manganiferous Solutions Circulated Through Tectonically Disturbed Banded Ironstone (Syngenetically) To Give Rise To Metasomatic Replacement Of The Country Rock With Manganese Along Favorable Layers.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1950
Year of first production 1959

Mining district

District name Kalahari Field; Kuruman District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner South African Manganese Amcor Ltd.

Production statistics

  • Year 1977
    Material ORE MN
    Accuracy Estimate
    Description Ap_Grade: ^48 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 48wt-pct
  • Year 1978
    Material ORE MN
    Accuracy Estimate
    Description Ap_Grade: ^48 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 48wt-pct
  • Year 1979
    Material ORE MN
    Accuracy Estimate
    Description Ap_Grade: ^ 13 % Fe (Approx)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Iron Iron 13wt-pct
  • Year 1980
    Material ORE MN
    Accuracy Estimate
    Description Ap_Grade: ^ 13 % Fe (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Iron Iron 13wt-pct
  • Year 1981
    Material ORE MN
    Accuracy Estimate
    Description Ap_Grade: ^48 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 48wt-pct
  • Year 1983
    Material MN
    Accuracy Estimate
    Description Ap_Grade: ^ 13 % Fe (Approximately)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Iron Iron 13wt-pct
  • Year 1983
    Period 1965.1983
    Material ORE MN
    Description Cp_Grade: ^48 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 48wt-pct

Comments on the production information

  • THIS FIRM DOES NOT PUBLISH PRODUCTION BY MINE AND, BEGINNING IN 1978, TERMINATED PUBLICATION OF ANNUAL OUTPUT ON A COMPANY BASIS. THE TOTAL CUMULATIVE PRODUCTION FOR THIS MINE, THEREFORE, HAS BEEN ESTIMATED FROM PRESS RELEASES AND A PAST-EXPERIENCE DATA BASE. SIMILARLY, ANALYSES ARE NOT AVAILABLE. GRADE ESTIMATES ARE FROM COMPANY BROCHURES. ; ESTIMATE BASED ON COUNTRY MANGANESE TOTAL AND VERBAL DISCUSSIONS WITH SAMANCOR AND SOUTH AFRICAN MINERALS BUREAU. ; THIS FIRM DOES NOT PUBLISH PRODUCTION BY MINE AND TERMINATED PUBLICATION OF ANNUAL OUTPUT ON A COMPANY BASIS IN 1976. TOTALS USED, THEREFORE, HAVE BEEN ESTIMATED FROM PRESS RELEASES AND TOTAL COUNTRY MANGANESE PRODUCTION FIGURES FROM THE SOUTH AFRICAN MINERALS BUREAU. ANNUAL ANALYSES ARE NOT AVAILABLE. ; THIS FIRM DOES NOT PUBLISH PRODUCTION BY MINE AND, BEGINNING IN 1978, TERMINATED PUBLICATION OF ANNUAL OUTPUT ON A COMPANY BASIS. TOTALS USED, THEREFORE, HAVE BEEN ESTIMATED FROM PRESS RELEASES AND A PAST-EXPERIENCE DATA
  • BASE. SIMILARLY, ANNUAL ANALYSES ARE NOT AVAILABLE. GRADE ESTIMATES ARE FROM COMPANY BROCHURES.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 3000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 48 wt-pct Manganese Major 1976

Comments on the reserve resource information

  • ESTIMATE OF PROVED AND BLOCKED OUT ORE ONLY. PROBABLE AND POSSIBLE RESERVES NOT INCLUDED.

Workings at the site

  • Type of workings Surface
    Overall depth 57M

Comments on the workings information

  • OPEN PIT ONLY. MECHANIZED POWER SHOVEL, FRONT END LOADER AND TRUCK OPERATION FOR BOTH WASTE REMOVAL AND ORE MINING. SELECTIVE MINING REQUIRED. SLURRY BLASTING EMPLOYED AND ORE SAMPLES FROM BLAST HOLES USED FOR GRADE CONTROL.

Comments on development

  • MILL.CAP: 0.8 MIL. MET. T/YR. ; ECON.YEAR: 1975 ; ECON.COM: AN OPEN PIT OPERATION, NOW WITH LIMITED-LIFE, OUTLOOK. NOTABLE THICKNESS OF EACH OF TWO ORE HORIZONS MINED, FLAT DIPS AND LOW COST OVERBURDEN REMOVAL COMBINE TO MAKE THE MINE ECONOMICALLY VIABLE. SALEABILITY OF THE ORE IS EXCELLENT -- FOR THE FERROALLOYS INDUSTRY LOCALLY (AS DIRECT-FEED ORE) AND FOR EXPORT (AS BLEND ORE).

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R. A.; 1964

  • Deposit

    THE MANGANESE DEPOSITS OF THE UNION OF SOUTH AFRICA, HANDBOOK 2 , DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1960

  • Production

    SOUTH AFRICAN MANGANESE AMCOR LIMITED ANNUAL REPORTS, 1974 - 1976 , AND SOUTH AFRICAN MANGANESE AMCOR LIMITED BROCHURE; CIRCA 1976. AFTER 1976: PRESS RELEASES & SOUTH AFRICAN MINERALS BUREAU ; TOTALS HAVE BEEN ESTIMATED FROM TOTAL COUNTRY PRODUCTION OF MANGANESE AS RELEASED BY THE MINERALS BUREAU AND VERBAL INFORMATION RECEIVED FROM SAMANCOR OFFICIALS.

General comments

Subject category Comment text
Deposit TWO MINABLE HORIZONS EXIST AT HOTAZEL; THE "TOP OREBODY" ( 6 - 7 METERS IN THICKNESS ) AND THE "BOTTOM OREBODY" ( 12 - 17 METERS ). A THIRD (THE "MIDDLE OREBODY"), IS LENTICULAR, DISCONTINUOUS, AND NOT RECOVERED. MAX. THICKNESS REFERS ONLY TO BOTTOM OREBODY. DEPTH TO TOP REFERS TO CURRENT MINING DEPTH TO THE TOP OF THE BOTTOM OREBODY. DIPS ARE VARIABLE BETWEEN 0 - 25 DEGREES WITHIN N - S TRENDING ASYMMETRICAL SYNCLINE.
Deposit INFORMATION MERGED FROM RECORD NUMBER W028848 ; W028849 ; W030793 ; W032373 ; W033588

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Sweetwood, Charles W. Department of State
Updater 01-AUG-1984 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-AUG-1982 Mccarter, Lorna D. Department of State
Updater 01-JUL-1983 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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