Shamva

Producer in Zimbabwe with commodities Gold, Silver
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. Ownership information
  11. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10183057
MAS/MILS ID 7960100045
Record type Site
Current site name Shamva

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 31.57772, -17.33036 (WGS84)

Site location context

Political divisions (FIPS codes)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Zimbabwe

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

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

Nearby scientific data

Ore Body (1) 31.57772, -17.33036

Economic information

Ore body information

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

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1895
Year of first production 1914
Milling method Hydrometallurgy Unspecified

Ownership information

  • Type Owner-Operator
    Owner Attica Mines Ltd (Lonrho)
    Interest 100

Reserves and resources

  • Type In-situ
    Estimate year 0
    Indicated 1467999mt ore
    Demonstrated 1467999mt ore
    Total resources 1467999mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.2 g/mt Gold Major 0
    Silver Ag 0.3899 g/mt Silver Minor 0

Comments on the reserve resource information

  • ANALYZED FOR THE 1983 AVAILABILITY STUDY AT 150,000 MTPY ORE FOR PRODUCTION OF 17,360 OZ AU/YR. 1984 PROD. WAS 20,060 0Z AU. DURING 1988&1989 THE MILL CAPACITY WAS TO BE INCREASED FROM THE 150,000 MTPY LEVEL TO AROUND 216-240,000 MTPY ORE LEVEL. PLAN WAS TO RAISE AU PROD. TO AROUND 34,700 OZ/YR. MAY UPDATE FOR THE 1992 AU AVAILABILITY STUDY. RESERVES ARE STILL VALUES FROM OLD 1983 STUDY.

Workings at the site

  • Type of workings Underground
    Overall depth 180M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method SHRINKAGE METHODS
    Percent Waste Rock 7
    Percent Recovery 95
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Number of Shafts 2
    Number of Adits 1
    1st Condition of Workings OPEN
    Capacity 500
    Capacity Units MT ORE/DAY
    Unit Production Cost 32.41
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1982

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    ARCHEAN GOLD MINERALIZATION IN ZIMBABWE, PREPRINT IN "ORE

  • Deposit

    DEPOSITS IN SOUTHERN AFRICA" TO BE PUBLISHED BY THE GEOL.

  • Deposit

    SOC. OF S. AFRICA, 1982.

  • Deposit

    FOSTER, R.P., THE DISTRIBUTION OF GOLD IN ARCHEAN VOLCANIC

  • Deposit

    ROCKS, 12TH ANN. REPORT INST. MIN. RES. UNIV., ZIMBABWE,

  • Deposit

    1981.

  • Deposit

    FOSTER, R.P., GOLD AND SILVER IN ZIMBABWE, INST. OF MINING

  • Deposit

    RES., REPORT NO. 38, 1980.

  • Deposit

    STIDOLPH, P.A., THE GEOLOGY OF THE COUNTRY AROUND SHAMVA,

  • Deposit

    BULL. RHOD. GEOL. SURV., 249 PP, 1977.

  • Deposit

    STIDOLPH, P.A., THE DISTRIBUTION OF GOLD IN THE SHAMVA

  • Deposit

    GREENSTONE BELT, GEOL. SOC. S. AFRICA SPEC. PUBL. 5,

  • Deposit

    PP 49-54, 1979.

  • Deposit

    MINING IN ZIMBABWE, PUBL. BY THOMSON PUBL., SALISBURY,

  • Deposit

    ZIMBABWE, 1981.

  • Deposit

    WORLD MINING, HOW GRADE CONTROL AT SHAMVA DEALS WITH ERRATIC

  • Deposit

    OREBODY, PP 60-61, MAY, 1981.

  • Deposit

    LONRHO, 1980 ANNUAL REPORT.

  • Deposit

    BOWEN, D.J., GOLD MINES OF RHODESIA 1890-1980, THOMSON

  • Deposit

    PUBL., SALISBURY, ZIMBABWE.

  • Deposit

    THE PRINCIPAL GOLD PRODUCING MINES OF ZIMBABWE, MAP, GOVERN-

  • Deposit

    MENT PRINTER, SALISBURY, 1978.

General comments

Subject category Comment text
Deposit BENEFICIATION IS BY GRAVITY FOLLOWED BY CYANIDATION THE COARSE GOLD IS RECOVERED DIRECTLY AND THE FINE GOLD IS TREATED BY CYANIDATION AND COMBINED WITH THE COARSE CONCEN- TRATE BEFORE SMELTING TO BULLION. THE BULLION IS SOLD TO THE RESERVE BANK SO TRANSPORTATION COSTS ARE INSIGNIFICANT.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-OCT-1992 Boyle, Ed U.S. Bureau of Mines

Beyond USGS

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