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Arcturus

Producer in Zimbabwe with commodities Gold, Silver
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Geologic information

Identification information

Deposit ID 10207359
MAS/MILS ID 7960100043
Record type Site
Current site name Arcturus

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 31.34713, -17.77623 (WGS84)
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Geographic areas

Country
Zimbabwe

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Bravoite Unknown
Chloritoid Unknown
Hauynite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) 31.34713, -17.77623
ListMap

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 SHEAR ZONE
    Date of Last Modification 861215

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1900
Year of first production 1910
Milling method Hydrometallurgy Unspecified

Ownership information

  • Type Owner-Operator
    Owner Corsyn Cons. Mines Ltd (Lonrho)
    Interest 100

Production statistics

  • Year 1981
    Description Total Kg Gold 1966-81 551 Kg
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 551,000g
  • Year 1981
    Description Total Kg Silver 1966-81 31 Kg
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 31,000g

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Demonstrated 882,700mt ore
    Indicated 882,700mt ore
    Total resources 882,700mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 7.7 g/mt Gold Major 1982
    Silver Ag 0.7 g/mt Silver Minor 1982

Comments on the reserve resource information

  • ANALYZED IN THE 1983 AVAILABILITY STUDY AT AN ORE CAPACITY OF 108,000 MTPY FOR PRODUCTION OF 19,680 OZ AU/YR. 1985 PROD. WAS 18,518 OZ FROM MILLING 105,000 MT ORE; 1986 PROD. WAS 21,187 OZ FROM MILLING 141,000 MT ORE. 1989 PROD. WAS 19,419 OZ FROM MILLING 126,073 MT ORE. MAY UPDATE FOR THE 1992 AU AVAILABILITY STUDY. RESERVES ARE STILL VALUES FROM OLD 1983 STUDY.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method SHRINKAGE METHODS
    Percent Recovery 100
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Number of Shafts 4
    1st Condition of Workings OPEN
    Capacity 342
    Capacity Units MT ORE/DAY
    Unit Production Cost 43.16
    Units of Production $/MT ORE
    Operating Days per Year 310
    Operating Shifts per Day 2
    Year of Information 1981

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 7960100043

Bibliographic references

  • Deposit

    ANNUAL REPORT - CORONATION SYNDICATE LIMITED, 1978, 23 P.

  • Deposit

    ANNUAL REPORT - CORONATION SYNDICATE LIMITED, 1981, 20 P.

  • Deposit

    STOCKLMAYER, V.R., ANNALS OF THE ZIMBABWE GEOLOGICAL SURVEY,

  • Deposit

    VOLUME V, 1979, 67 P.

  • Deposit

    FOSTER, R.P., MANN, A.G., STOWE, C.W., AND WILSON, J.F.,

  • Deposit

    ARCHEAN GOLD MINERALIZATION IN ZIMBABWE, PREPRINT FOR

  • Deposit

    GEOL. SOC. OF S.A. - ORE DEPOSITS IN SOUTHERN AFRICA,

  • Deposit

    1982, 88 P.

  • Deposit

    BOWER, D.J., GOLD MINES OF MASHONALAND 1890-1980, ARCTURUS

  • Deposit

    MINE, 1980, PP 7-8.

General comments

Subject category Comment text
Deposit FREE GOLD IS RECOVERED IN A CONCENTRATE BY GRAVITY AND SULFIDE GOLD IS RECOVERED BY FLOTATION. BOTH CONCENTRATES ARE COMBINED AND TREATED WITH CYANIDATION AND CARBON-AIR- PULP RECOVERY. THE BULLION IS SOLD TO THE RESERVE BANK; TRANSPORATION COSTS ARE NEGLIGIBLE.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-SEP-1992 Boyle, Ed U.S. Bureau of Mines