Wiluna

Plant in Western Australia, Australia with commodity Gold
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. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10183064
MAS/MILS ID 6020550057
Record type Site
Current site name Wiluna
Alternate or previous names Wiluna - Jundee Operation, Wiluna Gold Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 120.24926, -26.49629 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Western Australia(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Western Australia

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Calcite Unknown
Chlorite Unknown
Epidote Unknown
Feldspar Unknown
Gold Unknown
Olivine Unknown
Pyroxene Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) 120.24926, -26.49629

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Type of Wallrock Alter. #1 SILICIFICATION
    Date of Last Modification 921026

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1896
Mining method Open Pit
Year of first production 1904
Plant type Beneficiation (Mill)
Plant subcategory Precipitation
Milling method Leach-Precipitation

Mining district

District name Norseman-Wiluna

Mineral rights holdings

Type of mineral rights State Lease

Ownership information

  • Type Owner-Operator
    Owner Asarco Australia Ltd.
    Interest 100
    Home office Australia
    Year 1992

Production statistics

  • Year 1990
    Description 1,421,676 Mt Ore Milled @ 3.4 G/Mt Au 136052 Troy Ounces Of Fine Gold.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 4231690.79g 3g/mt
  • Year 1991
    Description 1,635,034 Mt Ore @ 2.46 G/Mt Ave. Grade 111445 Troy Ounces Of Fine Gold.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 3466327.44g 2g/mt

Comments on the production information

  • IN 1991 WILUNA TREATED 1,635,034 MT OF ORE FROM ALL OPERATIONS, INCLUDING RETREATED TAILINGS AND DUMP LEACH, TO PRODUCE 111,445 OZ GOLD, FROM AN AVERAGE GRADE OF 2.46 G/MT; REALIZING AN AVERAGE RECOVERY OF 86%.

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Measured 3608000mt ore
    Demonstrated 3608000mt ore
    Total resources 3608000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.3 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1991
    Measured 4545000mt ore
    Demonstrated 4545000mt ore
    Total resources 4545000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 5.8 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1991
    Measured 8153000mt ore
    Demonstrated 8153000mt ore
    Total resources 8153000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.25 g/mt Gold Major 1991

Comments on the reserve resource information

  • ALSO HAS 4,082,000 MT UG ORE GRADING 3.88 G AU/MT (509,000 CONT. OZ AU)
  • TOTAL KNOWN RESERVES AS OF 12/31/91.
  • WILUNA DUMPS OPERATION BEGAN PRODUCTION IN 1984; WILUNA OPEN CUT OPERATION IN DEVELOPMENT IN 1986 WITH EXPECTED STARTUP IN 1987. WILUNA DUMPS OPERATION EXPECTED TO PRODUCE 30,000 OZ IN 1987, WILUNA OPEN CUT OPERATION EXPECTED TO PRODUCE ABOUT 45,000 OZ/YR. IN 1989: 118,700 OZ AU FROM TREATING 1,122,000 MT ORE. HAS POTENTIAL FOR ANALYSIS IN THE 1992 AU AVAILABILITY STUDY. UG SULFIDE ORE UNDER STUDY IN 1988/1989.
  • RESERVES RECORDS 1, 2, 3, REPRESENT COMBINED RESERVES FOR WILUNA AND JUNDEE LEASES.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Capacity 2583
    Capacity Units MT ORE/DAY
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1992

Reference information

Bibliographic references

  • Reserve-Resource

    REGISTER OF AUSTRALIAN MINING, 1992/93, P. 105-105.

  • Deposit

    GEOLOGY OF AUSTRALIAN ORE DEPOSITS,GOLD DEPOSITS OF WILUNA,F

  • Deposit

    EMP.MINING & METALLURGY CONGRESS,1953,PP.215-223.

  • Deposit

    GOODES WORLD ATLAS,ED.-E.B.ESPENSHADE,JR.,13TH ED.,RAND MCNA

  • Deposit

    CO.,1970,P.179.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-MAY-1994 Slater, Linda C. U.S. Bureau of Mines

Beyond USGS

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