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Okorusu Fluorspar Deposit

Producer in Namibia with commodities Fluorine-Fluorite, Phosphorus-Phosphates, Quartz, Barium-Barite, Beryllium
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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. Geologic structures
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10069469
MRDS ID W007008
Record type Site
Current site name Okorusu Fluorspar Deposit

Geographic coordinates

Geographic coordinates: 16.76816, -20.06368 (WGS84)
Elevation 1500
Relative position 30 KM. NW OF OTJIKANGO (RAILROAD STATION). 40 KM. NORTH OF OTJIWARONGO. TSUMEB PROPERTY IS ADJACENT TO THE ISCOR PROPERTY.

Site location context

Political divisions (FIPS codes)

Namibia(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Namibia

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Phosphorus-Phosphates Tertiary
Quartz Tertiary
Barium-Barite Critical Tertiary
Beryllium Critical Tertiary

Materials information

Materials Type of material
Fluorite Ore
Barite Gangue
Pyrite Gangue
Quartz Gangue
Apatite Unknown

Analytical data

Result VEIN AND REPLACEMENT DEPOSITS: CAF2 - 60%.

Nearby scientific data

(1) 16.76816, -20.06368
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description 275 M. High Ridge Of Limestone, Quartzite And Related Rocks (Carbonatites)

Ore body information

  • General form LENTICULAR VEIN AND TABULAR REPLACEMENT BEDS

Controls for ore emplacement

  • Fluorspar Replaced Bedded And Brecciated Limestone, Marble And Quartzite Horizons

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Large
Significant No

Mining district

District name Okorusu District

Ownership information

  • Type Operator
    Owner Bethlehem Steel Corp; South African Steel Corp. (Iscor)
  • Type Owner
    Owner Tsumeb Corp.; South African Steel Corp. (Iscor)

Comments on the production information

  • MINE HAS BEEN CLOSED SINCE 1955 BUT PRODUCTION BY BETHLEHEM STEEL CORP. WAS EXPECTED BY 1973.

Reserves and resources

  • Type In-situ
    Name ISCOR PROPERTY
    Estimate year 1971
    Total resources 5000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 50 wt-pct Fluorine Major 1971
  • Type In-situ
    Name ISCOR PROPERTY
    Estimate year 1971
    Total resources 5000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 50 wt-pct Fluorine Major 1971

Comments on the workings information

  • ISCOR PROPERTY - ABOUT 10 PARALLEL ORE BODIES STRIKING NE DIPPING NORTH. MAIN ORE BODY: LENGTH - 400 M., WIDTH 100 M., DEPTH 100 M. LARGE RESERVES BUT STILL IDLE AS LATE AS 1971. BETHLEHEM STEEL BEGAN EXPLORING THE TSUMEB PROPERTY IN 1971

Comments on development

  • ECON.COM: TRANSPORTATION IS 30 KM BY TRUCK AND 410 KM. BY RAIL TO THE PACIFIC PORT OF WALVIS BAY. APATITE COMPLICATES MILLING PROCESSES.

Reference information

Bibliographic references

  • Deposit

    CHERMETTE, A., 1964, LE SPATH-FLUOR EN AFRIQUE DU SUD: MINES ET METALLURGIE, APRIL TO SEPTEMBER 1964, P. 9

  • Deposit

    GROGAN, R.M., 1974, THE ENVIRONMENTS OF DEPOSITION OF FLUORSPAR, IN A SYMPOSIUM ON THE GEOLOGY OF FLUORSPAR: KY. GEOL. SURV. SPECIAL PUB. 22, P. 8

  • Deposit

    1971, MINERALS YEARBOOK, VOL. III: U.S. BU MINES, P. 745

  • Deposit

    DEANS, T. AND OTHERS, 1972, METASOMATIC FELDSPAR ROCKS (POTASH FENITES) ASSOCIATED WITH THE FLUORITE DEPOSITS AND CARBONATITES OF AMBA DONGAR, INDIA: INST. MIN., METALL. (LONDON), FEB. '72.

  • Production

    DEANS, T. AND OTHERS, 1972, METASOMATIC FELDSPAR...AMBA DONGAR

  • Reserve-Resource

    1971, MINERALS YEARBOOK, VOL. III, P. 745

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1975 Schruben, Paul G. U.S. Geological Survey

Beyond USGS

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

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