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Mina Negra

Past Producer in Potosi, Bolivia with commodities Arsenic, Iron, Manganese, Tungsten
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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. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10207219
MAS/MILS ID 3350350035
Record type Site
Current site name Mina Negra

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -68.3095, -20.99756 (WGS84)
Elevation 3700
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi

Comments on the location information

  • DEPOSIT IS 8 KM N OF COSCA NEAR CHILEAN BORDER, RAILROAD IS COSCA. LOW GRADE, SPOTTY ORE ZONE ALL DATA FROM AHLFELD, SAY T OF 0.5 PCT W03 ARE NOW IN PLACE, PRODUCTION 1939 TO 1942 W T CONC, COMP: 54% MN,1.3% FE,+.75% AS.

Commodities

Commodity Importance
Arsenic Critical Tertiary
Iron Tertiary
Manganese Critical Tertiary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Barite Unknown
Opal Unknown
Psilomelane Unknown
Pyrolusite Unknown

Nearby scientific data

Ore Body (1) -68.3095, -20.99756
ListMap

Economic information

Ore body information

  • Dip 90N
    Area 2HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 PROPYLITIC
    Type of Wallrock Alter. #3 INTERM ARGILLIC
    Strike And Dip :90N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1939

Mining district

District name Cosca

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Minerals Only

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner Corp. Minera De Bolivia
    Interest 100
    Home office Bolivia
    Year 1954
  • Type Owner-Operator
    Owner Cia. Minera Mina Negra
    Interest 100
    Home office Bolivia
    Year 1942

Reserves and resources

  • Type In-situ
    Estimate year 1954
    Measured 1000mt ore
    Demonstrated 1000mt ore
    Total resources 1000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.5 wt-pct Tungsten Trace 1954

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., 1954, LOS YACIMIENTOS MINERALES DE BOLIVIA: BAN

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, PG. 228, WAS PRINTED IN BILBAO, S

  • Deposit

    IMPRENTA INDUSTRIAL S. A., IN SPANISH.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Ljb 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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