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  3. Mineral Resource Data System (MRDS)

Alencar

Past Producer in Minas Gerais, Brazil with commodity Mica
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10066295
MRDS ID TC42433
Record type Site
Current site name Alencar

Geographic coordinates

Geographic coordinates: -41.89558, -20.52052 (WGS84)
Location accuracy 1000(meters)
Relative position 300 M E OF MORRO REDONO.

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
Mica Primary

Materials information

Materials Type of material
Muscovite Ore
Biotite Gangue
Feldspar Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -41.89558, -20.52052
ListMap

Economic information

Ore body information

  • Thickness 7M
    Length 20M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Mining district

District name Espera Feliz

Ownership information

  • Type Owner-Operator
    Owner Amaral, Alencar
    First year 1940

Comments on the production information

  • LESS THAN 200 KG PER MONTH (1944); MORE LIKELY LESS THAN 10 KG TRIMMED MICA PER MONTH.

Comments on the workings information

  • 2 TUNNELS 7 AND 20 M LONG, 5 M APART.

Reference information

Bibliographic references

  • Deposit

    PECORA, W.T., KLEPPER, M.R., LARRABEE, D.M., BARBOSA, A.L.M., AND FRAYHA, RESK, 1950, MICA DEPOSITS IN MINAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN 964-C, P. 205-305.

  • Deposit

    MCGAVOCK, C.B., 1944, UNPUBLISHED U.S. GEOLOGICAL SURVEY REPORT.

  • Other Database

    CIMRI

  • Production

    MCGAVOCK (1944).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-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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