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Cerro Tollojsi Mine

Past Producer in Potosi, Bolivia with commodities Lead, Zinc, Silver, Gold
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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. Economic information about the deposit and operations
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10006591
MRDS ID BL30154
Record type Site
Current site name Cerro Tollojsi Mine
Alternate or previous names Cerro Tullujchi Mine

Geographic coordinates

Geographic coordinates: -65.94945, -19.68093 (WGS84)
Elevation 4800
Relative position 24 KM S50W OF POTOSI

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
Zinc Critical Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Galena Ore
Silver Ore
Sphalerite Ore
Chalcedony Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Hydrothermal Alteration Covers An Area Of 2.7 By 1.2 Km On The North Flank Of The Mountain (Below The Summit) And Consists Of Silicification And Argillization.

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Los Frailes
    Rock description Los Frailes
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -65.94945, -19.68093
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Emicruz
  • Type Owner
    Owner Comsur

Comments on the production information

  • INACTIVE LITTLE DEVELOPED PRODUCER

Comments on the workings information

  • BETWEEN 200 AND 500 M OF CROSSCUTS.

Comments on development

  • A CROSSCUT WAS OPENED 200 M BELOW THE OUTCROPS AND CUT A VEIN WITH PYRITE, SPHALERITE, GALENA, BARITE AND ALUNITE (?). VERY SIMILAR TO THE MINERALIZATION PERIPHERAL TO THE CERRO RICO DE POTOSI.

Reference information

Bibliographic references

  • Deposit

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

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit MINERALIZATION CONSISTS OF SMALL, SILVER-BEARING STOCKWORKS WITH IRON OXIDES, SULFIDES AND MINOR BARITE AND ARAGONITE (?). ON THE NORTH FLANK OF THE MASSIF, THERE ARE A SERIES OF FRACTURES FILLED WITH FINE-GRAINED CELLULAR QUARTZ, COARSE BARITE AND AGGREGATES OF ARAGONITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1994 Blacutt, William U.S. Geological Survey

Beyond USGS

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

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