Vatukoula Emperor Mine

Plant in Fiji with commodity Gold

Geologic information

Identification information

Deposit ID 10207783
MAS/MILS ID 6860050001
Record type Site
Current site name Vatukoula Emperor Mine
Alternate or previous names Emperor Gold Mines, Alternate Spellings, Vatakuola, Vatukuola, Vatakoula, Emperor Gold Mine.

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: 177.5102, -17.54721 (WGS84)
Elevation 200
Location accuracy 100(meters)
(click for info)

Geographic areas

Country
Fiji

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Calaverite Unknown
Gold Unknown
Hessite Unknown
Pyrite Unknown
Silver Unknown
Sylvanite Unknown

Nearby scientific data

Main Entrance (1) 177.5102, -17.54721

Ore body information

  • Strike N10W
    Dip 45N
    Thickness 9999M
    Depth to top 80M
    Width 150M
    Length 1523.9M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 STOCKWORK
    Shape of Orebody #2 MASSIVE
    Type of Orebody #3 BRECCIA FILL
    Shape of Orebody #3 OTHER
    Primary mode of Origin CONT METASOMATIC
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 PROPYLITIC
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 PYRITIZATION
    Strike And Dip N10W
    Minimum Depth to Top 99999
    Avg. Thick. Unconsol. Mat. 9999
    Min. Thick. Unconsol. Mat. 9999
    Date of Last Modification 941006

Comments on the geologic information

  • GOLD EXISTS IN THREE FORMS; SULFURIDES, TELLURIDES, & FREE GOLD

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1932
Mining method Combined Methods
Year of first production 1935
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Leach-Precipitation

Mining district

District name Vatukoula

Mineral rights holdings

Type of mineral rights Federal Lease
Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Emperor Mines Ltd.
    Interest 100
    Home office Fiji
    Year 1994
    First year 1935
    Last year 1994

Production statistics

  • Year 1992
    Description Mt Ore At 7.45 G/Mt Au 527000 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 527,000mt 7g/mt
  • Year 1992
    Description Mt Tailings At 1.21 G/Mt Au 521400 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 521,400mt 1g/mt
  • Year 1993
    Description Ore @ 7.25 G/Mt Of Gold 557000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 557,000mt 7g/mt
  • Year 1993
    Description Gold Production 105713 Ounces.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3,288,042g
  • Year 1993
    Description Mt Ore At 7.25 G/Mt Au 557000 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 557,000mt 7g/mt
  • Year 1993
    Description Mt Tailings At 1.25 G/Mt Au 566400 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 566,400mt 1g/mt
  • Year 1994
    Description Mt Ore At 8.55 G/Mt Au 546000 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 546,000mt 9g/mt

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Inferred 545,000mt ore
    Demonstrated 3,078,000mt ore
    Indicated 128,000mt ore
    Measured 2,950,000mt ore
    Total resources 3,623,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.5 g/mt Gold Major 1975
  • Type In-situ
    Estimate year 1994
    Demonstrated 1,700,000mt ore
    Measured 1,700,000mt ore
    Total resources 1,700,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 8.07 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1994
    Inferred 6,400,000mt ore
    Total resources 6,400,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 7.3 g/mt Gold Major 1994

Comments on the reserve resource information

  • MATRIX 1 COL 1: CURRENT RESOURCES (1994). SAME AS RESOURCES RECORD 1, SAME BIBLI. PROPERTY IS INCLUDED IN SAMPLE SET.
  • WILL NOT BE ANALYZED FOR THE 1992 AU AVAILABILITY STUDY - RESERVES TO SMALL. INCLUDED IN THE 1994 SAMPLE SET, HOWEVER. ADIT BIBLI. SEE "R" 001-002. ACTUAL ORE PRODUCTION RANGES FROM 500KT/A TO 700KT/A. EXPECTED GOLD PRODUCTION; 1994, 124.9 OZ; 1995, 133.7 OZ.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method COMBINED METHODS
    Hardness of Rock UNKNOWN
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Number of Shafts 2
    Number of Inclines 1
    1st Condition of Workings OPEN
    2nd Condition of Workings OPEN
    3rd Condition of Workings OPEN
    Capacity 2000
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1994

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 6860050001

Bibliographic references

  • Deposit

    DUNKIN,H.H.1969, EMPEROR GOLD MINES LTD. IN AUSTRALIAN MININ

  • Deposit

    IBBOTSON,P.1962, THE GEOLOGY OF THE TAVUA AREA, GEOL SURV DE

  • Deposit

    L.#8 SUVA,FIJI

  • Deposit

    METALS SOURCEBOOK 3/12/73 ITEM (A1611)

  • Deposit

    SCHMIDT,P.J.,1975;LETTER 28 FEB 1975

  • Reserve-Resource

    POTTER WARBURG; THE AUSTRALIAN GOLD SECTOR; FEBUARY 1994;

  • Reserve-Resource

    PP 130 - 141.

General comments

Subject category Comment text
Deposit THIS PROPERTY IS THE OLD "EMPEROR GOLD MINES PROPERTY" WHICH HAS PRODUCED SINCE 1933. OPERATION CONSITS OF UNDERGROUND MINING (R&P AND C&F) COMBINED, CONCENTRATOR AND MILL LOCATED AT MINE SITE. POWER PLANT AND WATER PLANT AT SITE AS WELL. OPEN PIT OPERATION HAS ALMOST ENDED. "MI" BIBLI. REF. NOT IN PROPERTY FILE.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-OCT-94 Slater, Linda C. U.S. Bureau of Mines