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  3. Mineral Resource Data System (MRDS)

Boa Vista

Occurrence in Bahia, Brazil with commodity Magnesite
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10065523
MRDS ID TC40863
Record type Site
Current site name Boa Vista

Geographic coordinates

Geographic coordinates: -41.35005, -14.15936 (WGS84)
Location accuracy 10000(meters)
Relative position IN LOWER CORREGO DO BATE-PE; SOUTH OF MAGNESITA S.A. CONCESSION LINE.

Site location context

Political divisions (FIPS codes)

Bahia(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Bahia

Commodities

Commodity Importance
Magnesite Primary

Comments on the commodity information

  • IN THE DISTRICT, KYANITE, TOURMALINE, TOPAZ, BERYL, PHLOGOPITE IN OPEN FISSURES AND VUGS LINED WITH MAGNESITE CRYSTALS AND QUARTZ. KYANITE, TOURMALINE, PHLOGOPITE, AND DOLOMITE WERE OBSERVED IN COARSE GRAINED TALC. KYANITE WAS MOST COMMON. BERYLS ARE GREEN AND BLUE. TOPAZ LEAST COMMON.

Materials information

Materials Type of material
Magnesite Ore
Enstatite Gangue
Quartz Gangue
Talc Gangue

Analytical data

Result MAGNESITE (4 SAMPLES): 0.4-8.6% SIO2
Result 43.5-45.3% MGO MAGNESITE (5 SAMPLES) 0.06% CAO, 0.7% MNO
Result WHITE MAGNESITE (SAMPLES) 2.50% FE2O3, 0.65% AL2O3.

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -41.35005, -14.15936
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1939
Discoverer Pierre Cahen And Georges Minvielle

Mining district

District name Brumado, Serra Das Eguas

Comments on the production information

  • REPRESENTS THE WHOLE DISTRICT.

Comments on the reserve resource information

  • REPRESENTS WHOLE DISTRICT; (1) MEASURED RESERVES; (2) TOTAL RESERVE.

Reference information

Bibliographic references

  • Analytical Data

    BODENLOS (1954).

  • Deposit

    BODENLOS, A.J., 1954, MAGNESITE DEPOSITS IN SERRA DAS EGUAS, BRUMADO, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN. 975-C, 87-170.

  • Deposit

    DE AZEVEDO BRANCO, P.C., 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS, METHODOLOGIA E LISTAGEM, CAPITULO IX IN C. SCHOBBENHAUS, D. DE ALMEIDA CAMPOS, G.R. DERZE, AND H.E. ASMUS, EDS., GEOLOGIA DO BRASIL: DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, P. 359-419.

  • Other Database

    CIMRI

  • Production

    DE AZEVEDO BRANCO (1984).

General comments

Subject category Comment text
Deposit SIZE OF OUTCROPS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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