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  3. Mineral Resource Data System (MRDS)

Redeyef

Producer in Tunisia with commodity Phosphorus-Phosphates
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10255931
MAS/MILS ID 7230300004
Record type Site
Current site name Redeyef

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 8.41843, 34.36593 (WGS84)
Elevation 700
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Tunisia(country)

Geographic areas

Country
Tunisia

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Nearby scientific data

Ore Body (1) 8.41843, 34.36593
ListMap

Economic information

Ore body information

  • Strike N90E
    Dip 20S
    Thickness 1.8M
    Area 2160HA
    Depth to top 100M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N90E:20S
    Minimum Depth to Top 0
    Total Surface Area (HA) 2160
    Date of Last Modification 830422

Comments on the geologic information

  • ALLUVIAL SANDS AND CLAYS ARE VARIABLE IN THICKNESS (0-20M). LMSTN CAPROCK VARIABLE IN THICKNESS (10-40M). ONE UNIT IS MINED; THICKNESS 1.8M
  • MINERAL NAME IS FLUORAPATITE.

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Non-metallic
Significant Yes
Discovery year 1899
Milling method Sizing

Mining district

District name Gafsa Basin

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Cie Des Phosphates De Gafsa (Government)
    Interest 100
    Home office Tunisia
    Year 1985

Production statistics

  • Year 1965
    Description 74000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 74000mt
  • Year 1966
    Description 1060000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1060000mt
  • Year 1967
    Description 1060000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1060000mt
  • Year 1968
    Description 1060000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1060000mt
  • Year 1969
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1970
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1971
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1972
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1973
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1974
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1975
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1976
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1977
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1978
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1979
    Description 1090000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1090000mt
  • Year 1980
    Description 1243399 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 1243399mt

Comments on the production information

  • INITIAL YEAR OF PRODUCTION IS UNKNOWN

Comments on the reserve resource information

  • ALTHOUGH AN INDIVIDUAL RESOURCE TONNAGE IS NOT AVAILABLE FOR REDEYEF, THE TOTAL RESOURCES OF THE GAFSA REGION IS REPORTED TO BE 1 BILLION MT.

Workings at the site

  • Type of workings Underground
    Length 355000M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method ROOM AND PILLAR 10-34
    Percent Waste Rock 33
    Percent Recovery 60
    Hardness of Rock SOFT NONPLASTIC WITH LITTLE WATER
    Rock Characteristics NO PLANES OF WEAKNESS
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    1st Condition of Workings UNKNOWN
    Capacity 4545
    Capacity Units MT ORE/DAY
    Operating Days per Year 330
    Operating Shifts per Day 3
    Year of Information 1985

Reference information

Bibliographic references

  • Reserve-Resource

    BRITISH SULPHUR CORP. LTD., WORLD SURVEY OF PHOSPATE

  • Deposit

    AMERICAN EMBASSY TUNISIA, INDUSTRIAL OUTLOOK REPORT, 6/9/80.

  • Deposit

    BOYCE, R.L., THE TUNISIAN PHOSPHATE INDUSTRY: TRIP REPORT

  • Deposit

    MARCH 21, 1980

  • Deposit

    BRITISH SULPHUR CORP. LTD., WORLD SURVEY OF PHOSPHATE

  • Deposit

    DEPOSITS, FOURTH EDITION, 1980

  • Deposit

    COMPANIE DES PHOSPHATES DE GAFSA, FIVE YEAR PLAN, TABLES FOR

  • Deposit

    YEARS 1978 THROUGH 1984

  • Deposit

    DEVOTO, R.H., AND D.N. STEVENS, URANIFEROUS PHOSPHATE

  • Deposit

    DEPOSITS AND TECHNOLOGY AND ECONOMICS OF URANIUM RECOVERY

  • Deposit

    FROM PHOSPHATE RESOURCES, UNITED STATES AND FREE WORLD,

  • Deposit

    VOL. 1, JUNE 1979

  • Deposit

    INTERNATIONAL GEOLOGICAL CONGRESS, 14TH, LES RESERVES

  • Deposit

    MONDIALES EN PHOSPHATES, 2 VOLUMES, 1926

  • Deposit

    KHAMMOUMA, S., LETTER TO W.F. STOWASSER, JULY 16, 1979

  • Deposit

    SHELDRICK, W.F. AND HARALD STIER, WORLD PHOSPHATE SURVEY

  • Deposit

    BACKGROUND PAPERS, SEPT. 1979. (RESTRICTED CIRCULATION.

  • Deposit

    USE ONLY WITH PERMISSION.)

  • Deposit

    SRI INTERNATIONAL, CHEMICAL ECONOMICS HANDBOOK, PHOSPHATE

  • Deposit

    ROCK, MARCH 1980

  • Deposit

    STOWASSER, W.F., FIELD TRIP REPORT--TUNISIAN PHOSPHATE ROCK

  • Deposit

    MINING INDUSTRY, NOV. 24, 1976

  • Deposit

    STOWASSER, W.F., MEMORANDUM: FIELD TRIP TO PHOSPHATE

  • Deposit

    PRODUCING MINES IN TUNISIA, DEC. 18, 1979.

  • Deposit

    TUNISIA BANKS ON NEW TECHNOLOGY ... P205 PRODUCTION GOALS

  • Deposit

    ENGINEERING AND MINING JOURNAL, SEPT. 1980.

  • Deposit

    TUNISIA ... PLANT TO DOUBLE PHOSPHATE PRODUCTION ...,

  • Deposit

    ENGINEERING AND MINING JOURNAL, MAY 1976.

  • Deposit

    INTERNATIONAL MINING, JULY 1985, P. 54.

  • Deposit

    POWER, TIM," TUNISIA; DEVELOPING DOWNSTREAM INDUSTRIES",

  • Deposit

    INDUSTRIAL MINERALS, JULY 1986, PP. 20-27.

  • Deposit

    BRITISH SULPHUR CORPORATION, WORLD SURVEY OF PHOSPHATE

  • Deposit

    DEPOSITS, FIFTH ED., PP. 110-111.

  • Deposit

    MINING JOURNAL, MARCH 10, 1989, P. 189.

  • Deposit

    PHOSPHOROUS & POTASSIUM, NO. 164, NOVEMBER/DECEMBER 1989

General comments

Subject category Comment text
Deposit OPEN PIT OPERATIONS ARE ALSO REPORTED TO EXIST. HOWEVER, VERY LITTLE IS KNOWN ABOUT ITS CAPACITY OR OTHER DETAILS CAPACITY REPORTED AT 921,000 MT/YR.

Reporter information

Type Date Name Affiliation Comment
Reporter 03-JUN-97 Fantel, Richard J. 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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