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  3. Mineral Resource Data System (MRDS)

Glenapp-Ivo

Producer in Zimbabwe with commodity Chromium
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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. Mineral rights holdings
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10158616
MAS/MILS ID 7960100057
Record type Site
Current site name Glenapp-Ivo
Alternate or previous names Glenapp/Ivo Section, Glenapp, Ivo Section

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 30.76803, -16.98038 (WGS84)
Elevation 1450
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Zimbabwe

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Plagioclase Unknown
Pyroxene Unknown

Nearby scientific data

Ore Body (1) 30.76803, -16.98038
ListMap

Economic information

Ore body information

  • Strike N10E
    Dip 20W
    Thickness 0.1M
    Length 16000M
    Width 300M
    Depth to top 50M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 PEGMATITE
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N10E:20W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .1
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830712

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Mining method Open Stope - Breast Stoping
Milling method Sizing

Mining district

District name Hartley Complex

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner African Chrome Mines Ltd.
    Interest 100
    Home office Zimbabwe
    Year 1982

Comments on the reserve resource information

  • 75% PROB. EST. IS AN ESTIMATE OF THE TONNAGE CONTAINED IN 3 SEAMS (NO.9, NO. 10 + NO.11) TO 300 METERS DOWN DIP (100 METERS VERT. DEPTH). THICKNESSES OF THE THREE SEAMS ARE .1,.12 AND .1 METERS RESPECTIVELY. EST. STRIKE LENGTHS OF OUTCROPS OF THE THREE SEAMS ON THE SECTION ARE 8000, 20,000 AND 20,000 METERS RESPECTIVELY. 50% PROB EST IS THE ESTIMATE TO DOWN-DIP FOR ADDITIONAL 500 M FOR SEAM 10 AND 700 M FOR SEAM 11.
  • 1/89 INSITU DEMO.TONNAGE = SEAMS 8,9,10,11 TO 300 M ON-DIP. 85 % RECOVERY.
  • SECTION IN CONTINUOUS PRODUCTION SINCE ABOUT 1955. FOR ANALYSIS: 10,000 MTPY ROM FOR: 8,000 MTPY FINES AND 2,000 MTPY LUMP. ALL PRODUCTS AT 47 % CR2O3 AND SENT TO SMELTER AT KWE KWE. GREAT DYKE RESOURCE. SEAMS 8,9,10,11 PRESENT ON SECTION. SEAMS 8,9,10 = .15 M THICK, SEAM 11 = .10 M THICK.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method RESUING 10-61
    Percent Waste Rock 0
    Percent Recovery 80
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 3
    Number of Adits 3
    1st Condition of Workings OPEN
    Capacity 40
    Capacity Units MT ORE/DAY
    Unit Production Cost 85.57
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1981

Comments on other economic factors

  • TRANSPORTATION COST FROM MILL TO SMELTER IS $15.10/MT MILL OUTPUT

Reference information

Bibliographic references

  • Deposit

    ALREY, N.M. "A REVIEW OF CHROMIRE MINING IN THE GREAT DYKE."

  • Deposit

    CHAMBER OF MINES JOURNAL. JUNE 1975. PP.35-43.

  • Deposit

    WILSON, N.H. "NOTES ON THE MINING INDUSTRY OF SOUTHERN

  • Deposit

    RHODESIA." GEOLOGICAL SURVEY OF SOUTHERN RHODESIA.

  • Deposit

    PP.55-59.

  • Deposit

    WORST, B.G. "THE GREAT DYKE OF SOUTHERN RHODESIA." SOUTHERN

  • Deposit

    RHODESIA, GEOLOGICAL SURVEY BULLETIN NO.47. 1960.

  • Deposit

    PP.82-106, 186-231.

  • Deposit

    GOLDER REPORT, AFRICAN CHOME MINES, 1981.

  • Deposit

    PERSONAL COMMUNICATION, 1981.

General comments

Subject category Comment text
Deposit INFORMATION FROM 1981 INDICATES THAT AFRICAN CHROME MINES WERE PRODUCING FROM AN OPERATING UNIT IN THE GLENAPP/ IVO AREA. THIS ANALYSIS TREATS A SINGLE SECTION OF THE GREAT DIVIDE -"THE GLENAPP/IVO SECTION" AS ONE MINEABLE UNIT . IN REALITY MORE THAN ONE COMPANY MAY HOLD THE LEASES FOR THE SECTION DESCRIBED AND THERE MAY BE MORE THAN ONE MINE OPERATING AT A GIVEN TIME. TO ANALYZE THE GREAT DYKE FOR AVAILABILITY IT WAS NECESSARY TO ADDRESS THE SITUATION IN A LOGICAL, COMPARTMENTALIZED FASHION. HENCE, THE "GLENAPP/ IVO SECTION" ANALYZED UNDER SEQ. NO. 7960100057 REFERS TO A 10 KM SECTION OF THE ENTIRE GREAT DYKE (BOTH LIMBS OF THE SYNCLINAL STRUCTURE) FROM LATITUDE S 17 DEG 0 MIN. NORTH TO THE IMPINGE FAULT.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-APR-95 Eastern Field Operations Center (EFOC) U.S. Bureau of Mines

Beyond USGS

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

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