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Constancia Mine

Past Producer in Potosi, Bolivia with commodities Tin, Zinc, 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10097724
MRDS ID BL20329
Record type Site
Current site name Constancia Mine
Alternate or previous names Turqui

Geographic coordinates

Geographic coordinates: -65.97362, -19.45843 (WGS84)
Elevation 4500
Relative position 8 KM S60W OF YOCALLA

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi
Bolivia Potosi

Comments on the location information

  • 900 HA CONCESSION ON CERRO TURQUI

Commodities

Commodity Importance
Tin Critical Primary
Zinc Critical Tertiary
Lead Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Galena Ore
Sphalerite Ore
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Siderite Gangue
Tourmaline Gangue

Alteration

  • (Local) Sericitization Of Porphyry Dikes And Sills

Mineral occurrence model information

Model code 77
USGS model code 20b
Deposit model name Sn-polymetallic vein

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Stratigraphic age (youngest) Late Silurian
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -65.97362, -19.45843
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On E Flank Of A N30w Trending Anticline

Ore body information

  • Strike N 50-60 E; N-S
    Dip 70-80 NW; 45-60 E
  • Strike N 50-60 E; N-S
    Dip 70-80 NW; 45-60 E

Economic information about the deposit and operations

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

Ownership information

  • Type Operator
    Owner Empresa Minera Cruz Arce Limitada
  • Type Owner
    Owner Arturo Cruz Arce

Production statistics

  • Year 1974
    Material CONS
    Accuracy Accurate
    Description Ap_Grade: ^35.8% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Tin Tin 36wt-pct
  • Year 1975
    Material CONS
    Accuracy Accurate
    Description Ap_Grade: ^36.1% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Tin Tin 36wt-pct
  • Year 1976
    Material CONS
    Accuracy Accurate
    Description Ap_Grade: ^34.0% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Tin Tin 34wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Total resources 18231000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 2.28 wt-pct Tin Major 1977

Comments on the reserve resource information

  • (1) PROBABLE RESERVE; (2) POSSIBLE AND PROSPECTIVE RESERVE

Comments on the workings information

  • MORE THAN 1 KM OF WORKINGS

Comments on development

  • ECON.COM: HAND SORTED ORES

Reference information

Bibliographic references

  • Deposit

    VARGAS, W., AND OTHERS, 1977, INFORME DE VIABILIDAD TECNICO ECONOMICO MINA CONSTANCIA: GEOBOL INFORME

  • Deposit

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

  • Other Database

    CIMRI

  • Production

    GUSTAVSON ASSOC. (1992)

General comments

Subject category Comment text
Deposit TWO VEIN SYSTEMS ASSOCIATED WITH SERICITIZED PORPHYRY DIKES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-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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