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

Imcor Mine

Plant in Namibia with commodities Copper, Lead, Silver, Zinc
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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. Mineral rights holdings
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10183130
MAS/MILS ID 7920000003
Record type Site
Current site name Imcor Mine
Alternate or previous names Rosh Pinah Mine

Comments on the site names

  • OTHER NAME: IMCOR MINE. OTHER OWNER: S.A. IRON & STEEL CO.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 16.76828, -27.94666 (WGS84)
Elevation 1500

Site location context

Political divisions (FIPS codes)

Namibia(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Namibia

Commodities

Commodity Importance
Copper Secondary
Lead Primary
Silver Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcopyrite Unknown
Galena Unknown
Sphalerite Unknown
Tennantite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) 16.76828, -27.94666
ListMap

Economic information

Ore body information

  • Thickness 25M
    Length 400M
    Width 260M
    Field Value
    Type of Orebody #1 MASS SULFIDE
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control BEDDING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SILICIFICATION
    Date of Last Modification 830714

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant No
Discovery year 1963
Mining method Open Stope - Sublevel
Year of first production 1974
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner Imcor Zinc (Pty.) Ltd.
    Interest 100
    Home office South Africa
    Year 1989
  • Type Operator
    Owner Imcor Zinc
    Year 1992
  • Type Owner
    Owner Iscor
    Interest 51
    Year 1992
  • Type Owner
    Owner Zincor
    Interest 49
    Year 1992

Production statistics

  • Year 1991
    Accuracy Estimate
    Description Estimated Production 37000 Mt Zn Conc
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Zinc Zinc 37000mt

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Measured 2359000mt ore
    Indicated 2719000mt ore
    Demonstrated 5078000mt ore
    Inferred 906000mt ore
    Total resources 5984000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 7 wt-pct Zinc Major 1980
    Lead Pb 2 wt-pct Lead Major 1980
    Copper Cu 0.1 wt-pct Copper Minor 1980
    Silver Ag 60 g/mt Silver Minor 1980
  • Type In-situ
    Estimate year 1991
    Measured 7930000mt ore
    Demonstrated 7930000mt ore
    Total resources 7930000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 7 wt-pct Zinc Major 1991
    Lead Pb 2 wt-pct Lead Major 1991
  • Type In-situ
    Estimate year 1993
    Demonstrated 7200000mt ore
    Total resources 7200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 6.5 wt-pct Zinc Major 1993
    Lead Pb 1.5 wt-pct Lead Major 1993

Comments on the reserve resource information

  • EXPANSION (ZN OK > 7K, PB 3K > 7K)

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method SUBLEVEL 10-43
    Percent Recovery 90
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Number of Shafts 1
    Number of Adits 1
    1st Condition of Workings OPEN
    Capacity 1615
    Capacity Units MT ORE/DAY
    Operating Days per Year 260
    Year of Information 1989

Comments on other economic factors

  • (3-92) IMCOR ZINC IS REPORTED TO BE SPENDING R27M (US$9.5M) TO DEVELOPE NEW ORE RESERVES. THIS WILL EXTENT THE MINE LIFE BY 4 YEARS.

Reference information

Bibliographic references

  • Development

    *CRU METAL MONITOR, ZINC, MAR. 1992, P. 7.

  • Reserve-Resource

    E&MJ INTERNATIONAL DIRECTORY OF MINING, 1991

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUNE, 1993,

  • Reserve-Resource

    P. 38, 49.

  • Deposit

    1973-74,ENGINEERING/MINING JOURNAL INTERNATIONAL DIRECTORY O

  • Deposit

    1970,MINING ANNUAL REVIEW,THE MINING JOURNAL,LONDON

  • Deposit

    1971,MINING ANNUAL REVIEW,THE MINING JOURNAL, LONDON

  • Deposit

    1972,MINING ANNUAL REVIEW,THE MINING JOURNAL,LONDON

  • Deposit

    1969,MINING JOURNAL,THE MINING JOURNAL LIMITED,LONDON,V272 N

  • Deposit

    1969,MINING JOURNAL,THE MINING JOURNAL LIMITED,LONDON,V273

  • Deposit

    1970,MINING JOURNAL,THE MINING JOURNAL LIMITED,LONDON,V274

  • Deposit

    1970,MINING JOURNAL,THE MINING JOURNAL LIMITED,LONDON,V275

  • Deposit

    1969,MINING MAGAZINE,THE MINING JOURNAL LIMITED,LONDON,VOL 1

  • Deposit

    1980 ENGINEERING/MINING JOURNAL INTERNATIONAL DIRECTORY

  • Deposit

    OF MINING.

  • Deposit

    1970,MINING MAGAZINE,THE MINING JOURNAL LIMITED,LONDON,VOL 1

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAR-1997 Difrancesco, Carl A. 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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