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Formidable Mine

Past Producer in Potosi, Bolivia with commodities Lead, Silver, Zinc
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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. Geologic structures
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10097734
MRDS ID BL20425
Record type Site
Current site name Formidable Mine

Geographic coordinates

Geographic coordinates: -65.51332, -21.39338 (WGS84)
Elevation 3500
Relative position 22 KM N75E OF TUPIZA

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi
Bolivia Potosi

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Secondary

Materials information

Materials Type of material
Sphalerite Ore
Quartz Gangue
Siderite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Cieneguillas
    Rock description Cieneguillas
    Stratigraphic age (youngest) Early Ordovician
    Stratigraphic age (youngest) Early Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -65.51332, -21.39338
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N-S Anticlines And Synclines

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner Eduardo Salazar

Production statistics

  • Year 1981
    Material CONS PB
    Accuracy Accurate
    Description Ap_Grade: ^75% Pb, 500 G/Mt Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Silver Silver 500g/mt
    Conc. Lead Lead 75wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 5184000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 0.72 wt-pct Lead Major 1982
    Silver Ag 2 g/mt Silver Major 1982
    Zinc Zn 0.04 wt-pct Zinc Minor 1982
  • Type In-situ
    Estimate year 1982
    Total resources 19584000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 2.22 wt-pct Lead Major 1982
    Silver Ag 5 g/mt Silver Major 1982
    Zinc Zn 6.26 wt-pct Zinc Minor 1982

Comments on the reserve resource information

  • (1) POSSIBLE; (2) PROSPECTIVE

Comments on the workings information

  • SHORT CROSSCUTS AND DRIFTS

Comments on development

  • ECON.COM: HAND SORTED ORE

Reference information

Bibliographic references

  • Deposit

    FONEM, 1982, INFORME PROYECTO NO. 214/82.

  • Deposit

    GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA

  • Other Database

    CIMRI

  • Production

    FONEM (1982)

  • Reserve-Resource

    (1-2) GUSTAVSON ASSOC. (1992)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1993 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

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