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Candelaria Mine

Producer in La Paz, Bolivia with commodities Antimony, 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10255108
MAS/MILS ID 3350200048
Record type Site
Current site name Candelaria Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.11615, -21.54755 (WGS84)
Elevation 4040
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia La Paz

Commodities

Commodity Importance
Antimony Critical Primary
Gold Tertiary

Materials information

Materials Type of material
Quartz Unknown
Scheelite Unknown
Stibnite Unknown
Tourmaline Unknown

Nearby scientific data

Ore Body (1) -66.11615, -21.54755
ListMap

Economic information

Ore body information

  • Strike N90E
    Dip 70W
    Thickness 0.7M
    Length 2000M
    Width 500M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FOLDING
    Secondary Ore Control FRACTURING
    Strike And Dip N90E:70W
    Date of Last Modification 850813
  • Thickness 0.4M
    Area 25HA
    Depth to top 30M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 CARBONATE SILIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Strike And Dip N48W:
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 30
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 25
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1930
Mining method Filled Stopes - Horiz Cut and Fill W/Waste Rock
Milling method Flotation

Mining district

District name Sorata

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Minerals Only

Land status

Ownership category State

Ownership information

  • Type Owner-Operator
    Owner Empresa Minera San Juan Ltda
    Interest 100
    Home office Bolivia
    Year 1982

Production statistics

  • Year 1977
    Description Antimony Ore 74000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 74000mt
  • Year 1978
    Description Antimony Ore 74000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 74000mt
  • Year 1979
    Description Antimony Ore 74000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 74000mt
  • Year 1980
    Description Antimony Ore 74000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 74000mt
  • Year 1981
    Description Antimony Ore 74000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 74000mt
  • Year 1982
    Description Antimony Ore 60000 Mt Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Antimony Antimony 60000mt

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Indicated 608100mt ore
    Demonstrated 608100mt ore
    Total resources 6000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 0.22 g/mt Silver 1982
    Antimony Sb 4.73 wt-pct Antimony Major 1982

Comments on the reserve resource information

  • MINE OUTPUT AS PUBLISHED IN THE 1987-88 EM/J INTERNATIONAL DIRECTORY OF MINING WAS 220 MTPD ORE, GRADING 3.0 PCT SB.

Workings at the site

  • Type of workings Underground
    Length 10000M
    Overall depth 300M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method HORIZ CUT & FILL W/WASTE ROCK 10-60
    Percent Waste Rock 50
    Percent Recovery 95
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Length of Inclines (m) 0
    Slope of Inclines 0
    Avg. Length of Adits (m) 1000
    Number of Adits 1
    1st Condition of Workings OPEN
    Capacity 200
    Capacity Units MT ORE/DAY
    Unit Production Cost 23.44
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1982

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., 1954, LOS YACIMIENTOS MINERALES DE BOLIVIA: BAN

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, PG. 106-107, PRINTED IN BILBAO, S

  • Deposit

    IMPRENTA INDUSTRIAL S. A., IN SPANISH.

General comments

Subject category Comment text
Deposit 1951 PRODUCTION WAS 45 T CONS OF 75 PCT W03, IS 20 KM E OF S ALL DATA FROM AHLFELD

Reporter information

Type Date Name Affiliation Comment
Reporter 11-OCT-96 Palencia, Cesar M. U.S. Bureau of Mines

Beyond USGS

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

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