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Orquestaca Mine

Past Producer in Potosi, Bolivia with commodities Antimony, Copper, Lead
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10006415
MRDS ID BL20444
Record type Site
Current site name Orquestaca Mine

Geographic coordinates

Geographic coordinates: -65.78277, -21.76422 (WGS84)
Elevation 3000
Relative position 27 KM N85W OF SANTIAGO DE COTAGAITA

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
Antimony Critical Primary
Copper Tertiary
Lead Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Stibnite Ore
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Silicification, Argillization, Surficial Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -65.78277, -21.76422
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On E Flank Of Anticline

Ore body information

  • General form PINCH AND SWELL
    Strike N-S, N 10 W, N 60 E
    Dip 60-80 E, 70 NE, 82 SE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1850

Ownership information

  • Type Owner
    Owner Gregorio Michel

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 4815000mt ore
    Commodity Subtype Grade units Group Importance Year
    Antimony Sb 3.17 wt-pct Antimony Major 1976
  • Type In-situ
    Estimate year 1976
    Total resources 5188000mt ore
    Commodity Subtype Grade units Group Importance Year
    Antimony Sb 3.03 wt-pct Antimony Major 1976
  • Type In-situ
    Estimate year 1976
    Total resources 5188000mt ore
    Commodity Subtype Grade units Group Importance Year
    Antimony Sb 3.03 wt-pct Antimony Major 1976

Comments on the reserve resource information

  • (1) POSITIVE; (2) PROBABLE; (3) POSSIBLE
  • POSIBLES

Workings at the site

  • Type of workings Underground
    Length 304M

Comments on the workings information

  • 174 M DRIFTS, 130 M CROSSCUTS, 35 M SHAFTS

Comments on development

  • ECON.COM: HAND SORTED ORE

Reference information

Bibliographic references

  • Deposit

    VEDIA, J., AND CAMACHO, E., 1976, PROGRAMA DE INVENTARIACION DE LA MINERIA CHICA: GEOBOL INFORME

  • Deposit

    SANDOVAL, L. AND OTHERS, 1978, ESTUDIO DE VIABILIDAD, MINA ORQUESTACA: GEOBOL INFORME

  • Deposit

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

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit Discovery Year: 1800'S
Deposit VEINS, VEINLETS, LENSES 0.2-0.5 M WIDE

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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