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  3. Mineral Resource Data System (MRDS)

Lavino Grootboom

Plant in South Africa with commodities Chromium, Iron
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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. Ownership information
  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 10159024
MRDS ID ISM0001
MAS/MILS ID 7910200040
Record type Site
Current site name Lavino Grootboom
Alternate or previous names Lavino Mine, Grootboom, Grootboom Chrome Mine, Annex Grootboom Samancor
Related records 10159171, 10231823, 60000503

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 30.17361, -24.75415 (WGS84)
Elevation 1230
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Chromium Critical Primary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Pyroxene Unknown

Nearby scientific data

Ore Body (1) 30.17361, -24.75415
ListMap

Economic information

Ore body information

  • Strike N33E
    Dip 15W
    Thickness 1.3M
    Length 1500M
    Width 480M
    Depth to top 135M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 SILICIFICATION
    Strike And Dip N33E:15W
    Minimum Depth to Top 0
    Date of Last Modification 930524

Comments on the geologic information

  • TYPE OF ORE BODY IS LAYERED INSTRUSIVE - ORE OCCURS IN SEAMS

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1957
Mining method Open Stope - Breast Stoping
Year of first production 1957
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Gravity

Mining district

District name East Bushveld Complex

Ownership information

  • Type Operator
    Owner Lavino (S. A.) (Pty) Ltd.
    Home office South Africa
    Year 1989
  • Type Owner
    Owner International Mineral And Chemical Corp.
    Interest 100
    Home office New York
    Year 1989

Comments on the production information

  • LAVINO SUPPOSEDLY PRODUCES THE LARGEST PERCENTAGE OF LUMP ORE OF ALL THE SOUTH AFRICAN OPERATIONS. PRODUCTION CONSISTS OF THREE BASIC TYPES IN 6 DIFFERENT SIZE RANGES. DATA IN THE "P" RECORDS REPRESENTS A COMBINATION OF ALL THREE VARIOUS PRODUCTS.

Comments on the reserve resource information

  • 1/89 INSITU DEMO.RESOURCE= FOR N.AND S.HILLS, 13 LEVELS EACH. RECOV.=90%. STEELPOORT SEAM, 1.3 M THICK, DIP 15-16 DEGS.
  • ACQUIRED BY ASSOCIATED ORE AND METALS IN 1989. MAY USE ORE AT THEIR MACHADODORP SMELTER OR COULD BE RELATED TO NEW S.AFRICAN CHEMICAL PLANT. LAVINO WAS MAJOR CHROMITE EXPORTER PREVIOUSLY FOR EVALUATION, ASSIGNED LAND POSITION WAS FOR BOTH THE GROOTBOOM 336 KT FARM AND FOR "ANNEX GROOTBOOM". NOTE-SAMANCOR SUPPOSEDLY DEVELOPED AN OPEN PIT CR MINE ON ANNEX GROOTBOOM. 400,000 MTPY ROM FOR: 125,000 MTPY LUMP,CHIPS,PEBBLES AND 210,000 MTPY CONCS. --ALL FOR EXPORT.
  • COL 1 REPRESENTS THE IN-SITU RESOURCE AND COL 2 IS THE RECOVERABLE RESOURCE. THE 75 PROBABILITY LEVEL REPRESENTS THE TONNAGE CONTAINED TO A VERTICAL DEPTH OF 400 METERS AND BASICALLY REPRESENTS ORE CONTAINED WITHIN THE CIRCULAR OUTCROP.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method BREAST STOPING 10-30
    Percent Waste Rock 0
    Percent Recovery 90
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Avg. Length of Adits (m) 500
    Number of Adits 15
    1st Condition of Workings OPEN
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

    CAMERON, E.N., DESBOROUGH, G.A., 1966, 'OCCURRENCE AND CHAR-

  • Deposit

    ACTERISTICS OF CHROMITE DEPOSITS-EASTERN BUSHVELD COMPLEX'

  • Deposit

    IN "MAGMATIC ORE DEPOSITS", MONOGRAPH 4, ECON. GEOL.

  • Deposit

    MONOGRAPH 4, ECON. GEOL.

  • Deposit

    HOLZ, P., 1973, "LAVINO CHROME-BUSHVELD FOREIGN EXCHANGE

  • Deposit

    EARNER", S.A. MINING & ENGINEERING JOURNAL, V. 85, JAN.,

  • Deposit

    JAN., 1973, P. 6-13.

  • Deposit

    DE WET J.F., 1952, "CHROMITE INVESTIGATION-PART III", JOUR-

  • Deposit

    NAL OF THE CHEMICAL, METALLURGICAL & MINING SOCIETY OF

  • Deposit

    SOUTH AFRICA, JAN., 1952, P. 143-155.

  • Deposit

    COAL, GOLD & BASE MINERALS OF SOUTHERN AFRICA. "LAVINO

  • Deposit

    POISED TO UTILIZE INCREASED PRODUCTION POTENTIAL."

  • Deposit

    OCT., 1977, P. 35-41.

  • Deposit

    RANKIN G, 1975, "CHROMIUM AND FERROCHROMIUM IN SOUTH AFRICA"

  • Deposit

    SAUNDERS AND TAYLOR, INC. INVESTMENT INDUSTRY REPORT,

  • Deposit

    JOHANNESBURG, S.A., P. 1-117.

  • Deposit

    SIEMS P, 1976, "CHROMITE MINES AND RESOURCES IN THE RE-

  • Deposit

    PUBLIC OF SOUTH AFRICA", MINERALS AVAIL. SYSTEM, DEC.1976.

  • Deposit

    P. 21-23.

  • Deposit

    DEPOSITS IN SOUTHERN AFRICA. "GEOLOGICAL SOCIETY OF SOUTH-

  • Deposit

    ERN AFRICA", 1964, VOL. II. P. 203-207.

  • Deposit

    ROSKILL INFORMATION SERVICE LTD., 1981, "THE ECONOMICS OF

  • Deposit

    SOUTH AFRICA", MINING AND ENGINEERING JOURNAL.

  • Deposit

    SIEMS P., CRIST E., SHEEHAN E., BHATT B., "CHROMITE

  • Deposit

    MINES AND RESOURCES IN THE REPUBLIC OF SOUTH AFRICA."

  • Deposit

    CAMERON N., DISBOROUGH G., 1969, SOCIETY OF ECNONOMIC GEO-

  • Deposit

    LOGISTS, "GEOLOGY OF THE BUSHVELD IGNEOUS COMPLEX, 'MAG-

  • Deposit

    MATIC ORE DEPOSITS: A SYMPOSIUM.", ECON. GEOL. PUBL. CO.

  • Deposit

    LANCASTER, PA. 1969 P. 1-39.

  • Deposit

    THE TEX REPORT CO. LTD. P. 106-112, 128.

  • Deposit

    TRANSVAAL CONSOLIDATED LAND AND EXPLORATION COMPANY LTD.

  • Deposit

    ANNUAL REPORT. 1980.

  • Deposit

    WILLEMSE,J."THE GEOLOGY OF THE BUSHVELD IGNEOUS COMPLEX,THE

  • Deposit

    LARGEST REPOSITORY OF MAGMATIC ORE DEPOSITS IN THE

  • Deposit

    WORLD", MAGMATIC ORE DEPOSITS SYNPOSIUM. 1965, P. 1-21.

  • Deposit

    BUCHANAN D L, 1978, "CHROMITE PRODUCTION FROM THE BUSH-

  • Deposit

    VELD COMPLEX AND ITS RELATIONSHIP TO THE FERROCHROME

  • Deposit

    INDUSTRY", JOHANNESBURG, BUREAU FOR MINERALS STUDIES,

  • Deposit

    UNIVERSITY OF WITWATERSTAND, P. 17

  • Deposit

    SILK M H, 1988, "WORLD CHROMITE RESOURCE AND FERROCHROMIUM

  • Deposit

    PRODUCTION", MINTEK SPECIAL PUBL. NO. 11.

  • Deposit

    GOLDER ASSOC., 1981, "DEPOSIT PROFILE - LAVINO, TRANSVAAL,

  • Deposit

    SOUTH AFRICA.

  • Deposit

    DAVIDOFF R L, BOYLE E H JR., 1988, "NOTES FROM VISIT TO THE

  • Deposit

    REPUBLIC OF SOUTH AFRICA", MINERALS AVAIL. FIELD OFFICE,

  • Deposit

    USBM.

General comments

Subject category Comment text
Deposit LOCATED ON FARM GROOTBOOM,NR.STEELPOORT. PROD.BEGAN 1957. ADITS DRIVEN EASTWARDS TO INTERSECT ORE BODY.ADITS AT 31 M LEVEL. POWER DELIVERED BY ESCOM THRU 6.6 KV POWER LINE 60%OF PRODUCTION IS EXPORTED TO JAPAN,EUROPE&AMERICAS. 40%OF PRODUCTION GOES TO FERROMETALS AT WITIBANK. 1973 PROD.RATE AT ONLY 7000-8000 MT ORE/MO.ALTHOUGH EQUIP. CAPACITY IS 20,000 MT ORE/M0NTH
General This is a plant. Most of the previous names are mine names. The data is confusing as there is a plant and mines and information is mixed. Old MAS record (7910200225), which said it was same as the old MRDS record was of a prospect. This area is mined for chromium, but the mines have different records.

Reporter information

Type Date Name Affiliation Comment
Reporter 24-MAY-93 Boyle, Ed U.S. Bureau of Mines
Updater 19-JUL-10 Causey, J. Douglas U.S. Geological Survey

Beyond USGS

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

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