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

Obrovac Mine

Producer in Croatia with commodity Aluminum
Map
XML
JSON
KML
C
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. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10304403
MAS/MILS ID 4790100001
Record type Site
Current site name Obrovac Mine
Alternate or previous names Jesenica, Krusevo, Drnis

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 16.11864, 43.91547 (WGS84)
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

Croatia(country)

Geographic areas

Country
Croatia

Commodities

Commodity Importance
Aluminum Critical Primary

Materials information

Materials Type of material
Bauxite Unknown
Gibbsite Unknown
Bauxite Unknown
Gibbsite Unknown

Nearby scientific data

Ore Body (1) 16.11864, 43.91547
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Date of Last Modification 921030

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Metallic
Significant Yes
Year of first production 1937

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner Rudnici Boksita - Dalmatiniski
    Interest 100
    Home office Yugoslavia
    Year 1989

Production statistics

  • Year 1988
    Accuracy Estimate
    Description Ore Throughput (Estimated) 181000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Aluminum Aluminum 181000mt
  • Year 1989
    Accuracy Estimate
    Description Ore Throughput (Estimated) 234000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Aluminum Aluminum 234000mt
  • Year 1990
    Accuracy Estimate
    Description Ore Throughput (Estimated) 245000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Aluminum Aluminum 245000mt

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Indicated 3000000mt ore
    Demonstrated 3000000mt ore
    Total resources 3000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 48 wt-pct Aluminum Major 1989

Comments on the reserve resource information

  • OBRAVAC MAY INCLUDE SEVERAL OPERATIONS: JESENICA, KRUSEVO, AND DRNIS. IDLE DUE TO CIVIL WAR.
  • THERE IS 50 PERCENT CONFIDENCE THAT THE OBROVAC MINE CONTAINS RESERVES OF 3 MILLION METRIC TONS WITH HEAD GRADES OF 48 PERCENT AL2O3 AND 5 PERCENT SIO2.

Comments on other economic factors

  • THE BAUXITE ORE HAS A 21 PERCENT LOSS ON IGNITION DUE TO ITS GIBBSITE CONTENT. SPECIFIC CONSUMPTION IS 2.4 DMT OF BAUXITE PER TON OF ALUMINA. AVERAGE ORE GRADE IS 48 PERCENT AL2O3 AND 5 PERCENT SIO2. THE CONCENTRATOR USES THE WASHING AND SCREENING METHOD OF MILLING. THE CONCENTRATOR OPERATES WITH A CAPACITY OF 234,000 METRIC TONS PER YEAR, PROVIDED THAT THE CONCENTRATOR OPERATES FOR 250 DAYS OUT OF THE YEAR AND RUNS ONE WORKING SHIFT PER DAY. THIS DATA IS FOR THE YEAR 1989.
  • SUBLEVEL CAVING IS THE PREDOMINANT UNDERGROUND MINING METHOD. UNDERGROUND MINING REPRESENTS 45 PERCENT OF TOTAL PRODUCTION FROM THE OBROVAC MINE.

Reference information

Bibliographic references

  • Deposit

    COMMODITIES RESEARCH UNIT LIMITED, LONDON, THE BASE

  • Deposit

    METAL INDUSTRIES OF EASTERN EUROPE, VOL. 3, PP. 129-30

  • Deposit

    (NOV. 1990).

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-96 Wilburn, David R. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site