1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Dos Amigos Mine

Producer in Potosi, Bolivia with commodities Antimony, Lead, Gold, Silver, Zinc
Map
XML
JSON
KML
B
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10100662
MRDS ID BL20350
Record type Site
Current site name Dos Amigos Mine

Geographic coordinates

Geographic coordinates: -66.36613, -18.54763 (WGS84)
Elevation 3800
Relative position 7.5 KM S10E OF AYMAYAPAMPA

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
Lead Tertiary
Gold Primary
Silver Secondary
Zinc Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Alunite Gangue
Pyrite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Seritization, Alunitization

Host and associated rocks

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

Nearby scientific data

(1) -66.36613, -18.54763
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On W Flank Of N20w Trending Anticline
Type of structure Local
Structure description Faults Transverse To Anticlinal Axis Displace Veins Slightly

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Anticlinal Fold Axis

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No

Mining district

District name Potosi

Ownership information

  • Type Owner
    Owner Jeronimo Illijic ; Jorge Bacigalupo And M. Biggeman
    First year 1975

Production statistics

  • Year 1975
    Material CONS
    Accuracy Accurate
    Description Ap_Grade: ^55% Sb, 8% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Lead Lead 8wt-pct
    Conc. Antimony Antimony 55wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Total resources 4287000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 0.01 wt-pct Lead Trace 1975
    Silver Ag 1.43 g/mt Silver Minor 1975
    Zinc Zn 0.35 wt-pct Zinc Trace 1975

Comments on the reserve resource information

  • GEOLOGIC RESERVE

Workings at the site

  • Type of workings Underground
    Length 81M

Comments on the workings information

  • FOUR ADITS, 13, 18, 20, AND 30 M LONG RESPECTIVELY.

Comments on development

  • ECON.COM: 50 MT/DAY GRAVITY CONCENTRATION MILL

Reference information

Bibliographic references

  • Deposit

    MONTANO, L.R., AND MONTE C., R., 1975, DOS AMIGOS MINING GROUP TECHNICAL ASSISTANCE REPORT: GEOBOL INFORME GE-G2/212

  • Deposit

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

  • Other Database

    CIMRI

  • Production

    MONTANO AND MONTE (1975)

General comments

Subject category Comment text
Deposit VEINS PARALLEL TO N20W ANTICLINAL AXIS. ONE MAIN VEIN, 350 M LONG, 0.40 TO 0.60 M WIDE, STRIKES N25W DIPS 75SW. SEVERAL OTHER, SHORT NARROW VEINS PARALLEL TO FOLD AXIS. TRANSVERSE MIENRALIZED STRUCTURES, MAINLY IN THE IRPA IRPA SECTOR. GOLD CONTENTS ARE HIGHEST NEAR THE ANTICLINAL AXIS, HIGHEST SB-PB-AG CONTENTS ARE DISTAL TO THE FOLD AXIS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1991 Calderon, Raul Servicio Geologic de Bolivia
Updater 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.

Maps centered on this site