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  3. Mineral Resource Data System (MRDS)

Itapacerica

Producer in Minas Gerais, Brazil with commodity Graphite
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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. Ownership information
  11. Production statistics
  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 10207019
MAS/MILS ID 3510230126
Record type Site
Current site name Itapacerica
Alternate or previous names Itapecerica

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -45.13227, -20.43078 (WGS84)
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais

Commodities

Commodity Importance
Graphite Critical Primary

Materials information

Materials Type of material
Graphite Unknown
Mica Unknown

Nearby scientific data

Ore Body (1) -45.13227, -20.43078
ListMap

Economic information

Ore body information

  • Depth to top 20M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin UNKNOWN
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. UNKNOWN
    Date of Last Modification 840703
  • Area 4HA
    Field Value
    Total Surface Area (HA) 4
    Date of Last Modification 910418

Comments on the geologic information

  • THE GRAPHITE OCCURS IN THE MINERALIZED ZONE AS VEINS WITH BRANCHES RESEMBLING BEADED STRINGS. THE GENERAL OREBODY SHAPE IS TABULAR.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant Yes
Mining method Open Pit
Year of first production 1967
Milling method Flotation

Ownership information

  • Type Owner-Operator
    Owner Cia. National De Grafite, Ltda
    Interest 100
    Home office Brazil
    Year 1983

Production statistics

  • Year 1967
    Description Ore=23% C,Product=93.3% C 6546 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Graphite Graphite 6546mt 93wt-pct
  • Year 1968
    Description 7461 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Graphite Graphite 7461mt
  • Year 1969
    Description 9312 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 9312mt
  • Year 1970
    Description 9114 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 9114mt
  • Year 1971
    Description 9029 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 9029mt
  • Year 1972
    Description 12696 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 12696mt
  • Year 1973
    Description 25163 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 25163mt
  • Year 1974
    Description 29961 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 29961mt
  • Year 1975
    Description 35314 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 35314mt
  • Year 1976
    Description 35314 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 35314mt
  • Year 1977
    Description 35314 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 35314mt
  • Year 1978
    Description 35314 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 35314mt
  • Year 1979
    Description 30000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 30000mt
  • Year 1980
    Description 30000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 30000mt
  • Year 1981
    Description 18532 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Graphite Graphite 18532mt

Comments on the production information

  • SOME OF THE PRODUCTION TONNAGES IN THE HP DATA SET ARE ESTIMATED.

Comments on the reserve resource information

  • RECURSOS MINERAIS DO BRASIL, 1983. RESERVE TONNAGE IS UPDATED BY SUBTRACTING PROPOSED PRODUCTION TONNAGES UP TO DEC.1988.
  • M1C1=M9C4. RESOURCES CALCULATED FROM 12/83 TONNAGE SUPPLIED BY COMPANY PLUS ESTIMATED 1982-83 PRODUCTION.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .6
    Avg. Overburden Thickness 20
    Hardness of Ore HARDPAN
    Capacity 73
    Capacity Units MT ORE/DAY
    Unit Production Cost 33.36
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 1
    Year of Information 1983
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .6
    Avg. Overburden Thickness 20
    Hardness of Ore HARDPAN
    Capacity 115
    Capacity Units MT ORE/DAY
    Unit Production Cost 22.12
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 1
    Year of Information 1983

Comments on other economic factors

  • MILL WILL OPERATE AT 64 PERCENT OF DESIGN CAPACITY IN 1982-84 AND AT FULL CAPACITY IN 1985-2003.
  • VERY LITTLE DETAILED INFORMATION ABOUT THE MINING OPERATION IS AVAILABLE. THE ORE IS RIPPED BY TRACTORS, BUT ORE GATHERING IS MANUAL AND SELECTIVE. ASSUME 260 DPY OF OPERATION. MINE WILL OPERATE AT 64 PERCENT OF DESIGN CAPACITY IN 1982-84 AND AT FULL CAPACITY IN 1985-2003.

Reference information

Bibliographic references

  • Deposit

    GUIMARAES,M.A.,"PERFIL ANALITICO DE GRAFITA", DNPM, 1973.

  • Deposit

    ABREU,S.F.,"RECURSOS MINERAIS DO BRASIL", 1983.

  • Deposit

    ANON.,"SUMARIO MINERAL 1982", DEM/DNPM, 1982.

  • Deposit

    ANON.,"ANNUARIO MINERAL BRASILEIRO, 1982", DEM/DNPM, 1982.

  • Deposit

    TAYLOR,H.A.,"USBM MINERALS YEARBOOK 1982", USBM, 1983.

  • Deposit

    ROBBINS, J., "GRAPHITE - DRAWING ON MIXED SOURCES", INDUS.

  • Deposit

    MIN., NO. 202, JULY 1984, P. 37-55.

General comments

Subject category Comment text
Deposit COST DATA FOR THIS PROPERTY WERE GATHERED UNDER BUREAU OF MINES CONTRACT J0225019, "THE DEVELOPMENT OF ENGINEERING AND COST DATA FOR FOREIGN GRAPHITE PROPERTIES"; THE CONTRACT WAS AWARDED TO ZELLARS-WILLIAMS, INC. IN SEPTEMBER 1982. THE MINE IS LOCATED IN THE SOUTH-CENTRAL PORTION OF THE STATE OF MINAS GERAIS, BRAZIL.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-APR-95 Z&W Inc 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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