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Orfaos

Past Producer in Minas Gerais, Brazil with commodities Zirconium, Uranium
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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. Ownership information
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10065537
MRDS ID TC40881
Record type Site
Current site name Orfaos

Geographic coordinates

Geographic coordinates: -46.46399, -21.95995 (WGS84)
Location accuracy 10000(meters)
Relative position 6.3 KM WSW OF CALDAS.

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais
Brazil Sao Paulo

Comments on the location information

  • 350 KM NW OF RIO DE JANEIRO.

Commodities

Commodity Importance
Zirconium Critical Primary
Uranium Secondary

Materials information

Materials Type of material
Zircon Ore

Analytical data

Result ELUVIAL CONC. (4 SAMPLES): 0.35%EU

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -46.46399, -21.95995
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Pocos De Caldas Plateau, Pocinhos Area

Ownership information

  • Type Operator
    Owner Contractors
  • Type Owner
    Owner Geral De Minas, Subsidary Of Byington (1950'S).

Production statistics

  • Year 1935
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1936
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1937
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    SIL Silica Silica 15wt-pct
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
  • Year 1938
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1939
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1940
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    SIL Silica Silica 15wt-pct
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
  • Year 1941
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1942
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    SIL Silica Silica 15wt-pct
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
  • Year 1943
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1944
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    SIL Silica Silica 15wt-pct
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
  • Year 1945
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    SIL Silica Silica 15wt-pct
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
  • Year 1946
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1947
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1948
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1949
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1950
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1951
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1952
    Period 1940-1952
    Material CONC
    Accuracy Accurate
    Description Cp_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct
  • Year 1952
    Material CONC
    Accuracy Accurate
    Description Ap_Grade: ^72% Zro2, 15% Sio2
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    ZrO2 Conc. Zirconium Zirconium 72wt-pct
    SIL Silica Silica 15wt-pct

Comments on the production information

  • ANNUAL PRODUCTION: 1935-1939 ARE EXPORT NUMBERS; 1940-1952 ARE PRODUCTION FROM POCINHOS AREA. CUMULATIVE PRODUCTION: PRODUCTION FROM POCINHOS AREA. ONLY A FEW TONS PRODUCED FROM THIS DEPOSIT. UNKNOWN LITTLE DEVELOPED PRODUCER.

Reference information

Bibliographic references

  • Deposit

    TOLBERT, G.E., 1966, THE URANIFEROUS ZIRCONIUM DEPOSITS OF THE POCOS DE CALDAS PLATEAU, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN 1185-C, 28 P

  • Other Database

    CIMRI

  • Production

    TOLBERT (1966).

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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