Chambillaya

Past Producer in La Paz, Bolivia with commodity Tungsten
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. 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 10182769
MAS/MILS ID 3350200065
Record type Site
Current site name Chambillaya
Alternate or previous names Zona Chambillaya, Mina Margarita and Mina Gracie, La

Comments on the site names

  • OTHER NAMES:LA MARG & MINA GRACIE

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -67.21619, -16.99767 (WGS84)
Elevation 3550
Location accuracy 500(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
Tungsten Critical Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Chalcopyrite Unknown
Ferberite Unknown
Quartz Unknown
Wolframite Unknown

Nearby scientific data

Ore Body (1) -67.21619, -16.99767

Economic information

Ore body information

  • Strike N80E
    Dip 90N
    Thickness 0.3M
    Length 90M
    Width 600M
    Area 1500HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    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 N80E:90N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1500
    Date of Last Modification 830812

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Caving Methods - Sublevel Caving
Year of first production 1912
Milling method Flotation

Mining district

District name Chambillaya Mining District

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 International Mining Co.
    Interest 100
    Home office Bolivia
    Year 1992

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Indicated 120000mt ore
    Demonstrated 120000mt ore
    Total resources 120000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.6 wt-pct Tungsten Major 1985
  • Type In-situ
    Estimate year 1992
    Indicated 183383mt ore
    Demonstrated 183383mt ore
    Total resources 183383mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.58 wt-pct Tungsten Major 1992

Comments on the reserve resource information

  • ROSKILL INFORMATION SERVICES: ECONOMICS OF TUNGSTEN 1990 SIXTH EDITION.
  • 90% MINE RECOVERY. 40% ORE DILUTION. RESOURCES AS OF 1/83

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SUBLEVEL 10-43
    Percent Recovery 90
    1st Condition of Workings OPEN
    Capacity 300
    Capacity Units MT ORE/DAY
    Unit Production Cost 16.17
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • TRANSPORTATION COSTS MILL TO SMELTER: $63.77/MT.

Reference information

Bibliographic references

  • Reserve-Resource

    LAML TOPICAL SUPPLEMENT, NOV. 7, 1985, P. TS3.

  • Deposit

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

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, PG. 116-117 PRINTED IN BILBAO, S

  • Deposit

    IMPRENTA INDUSTRIAL S. A., IN SPANISH.

General comments

Subject category Comment text
Deposit TWO MINES IN DISTRICT: MARGARITA MINING 4 VEINS FROM 3750 TO ELEV., AND MARIA GRACIELA MINE TO S MINING 3 VEINS FROM 4050 4300 M, LOCATED 5 KM S OF QUIME, ALL DATA FROM AHLFELD. LOCA OM AHLFELD MAP, 1954.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-APR-1995 Rfb U.S. Bureau of Mines

Beyond USGS

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