1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Sao Joao Do Piaui

Prospect in Piaui, Brazil with commodity Nickel
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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. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10182888
MAS/MILS ID 3510330001
Record type Site
Current site name Sao Joao Do Piaui
Alternate or previous names San Joao Do Piaui, No Alternative Names

Geographic coordinates

Geographic coordinates: -42.24897, -8.33126 (WGS84)

Site location context

Political divisions (FIPS codes)

Piaui(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Piaui

Commodities

Commodity Importance
Nickel Critical Primary

Materials information

Materials Type of material
Garnierite Unknown
Limonite Unknown

Nearby scientific data

(1) -42.24897, -8.33126
ListMap

Economic information

Ore body information

  • Length 8000M
    Width 4000M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 LATERITE
    Shape of Orebody #1 TABULAR
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 830712

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Mining method Strip-Hillside
Milling method Pyrometallurgy Unspecified

Ownership information

  • Type Owner-Operator
    Owner Rio Doce Geologia E. Mineracao S/A
    Year 1981

Reserves and resources

  • Type In-situ
    Estimate year 1978
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.75 wt-pct Nickel Major 1978

Comments on the reserve resource information

  • CVRD IS PLANNING A PROJECT FOR PRODUCTION OF 10.000 TPY OF NICKEL WITH A TOTAL INVESTMENT ON THE PROJECT OF $150 MILLION.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Primary Material Cover HARDPAN
    Hardness of Ore HARDPAN
    Capacity 4000
    Capacity Units MT ORE/DAY
    Unit Production Cost 5
    Units of Production $/MT ORE
    Operating Days per Year 300
    Year of Information 1981

Reference information

Bibliographic references

  • Deposit

    BRAZILIAN NICKEL DISCOVERY, MINING JOURNAL, NOV. 4, 1977.

  • Deposit

    P. 378.

  • Deposit

    BRAZILIAN NICKEL FIND, MINING MAGAZINE, DEC. 1977, P. 664.

  • Deposit

    BRAZIL, WORLD MINING, JULY 1978, P. 71.

  • Deposit

    STAFF, ENGINEERING AND MINING JOURNAL, JAN. 1978, P. 75.

  • Deposit

    PERSONAL COMMUNICATION. PRIVATE CONSULTANT IN BRAZIL. 1981

Reporter information

Type Date Name Affiliation Comment
Reporter 22-DEC-1994 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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