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Julcani

Plant in Huancavelica, Peru with commodities Copper, Gold, Lead, Silver
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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. 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 10230752
MRDS ID W002014
MAS/MILS ID 3330150010
Record type Site
Current site name Julcani
Related records 60001590

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -75.09969, -12.89783 (WGS84)
Elevation 4200
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Huancavelica(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Huancavelica

Commodities

Commodity Importance
Copper Secondary
Gold Secondary
Lead Primary
Silver Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Bismuthinite Unknown
Chalcopyrite Unknown
Enargite Unknown
Galena Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown
Tennantite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -75.09969, -12.89783
ListMap

Economic information

Ore body information

  • Strike N45W
    Dip 90
    Length 400M
    Width 400M
    Area 400HA
    Depth to top 20M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 INTERM ARGILLIC
    Strike And Dip N45W:90
    Minimum Depth to Top 0
    Total Surface Area (HA) 400
    Date of Last Modification 780213

Comments on the geologic information

  • GOODELL REPORT BEST FOR GEOLOGY.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1586
Mining method Filled Stopes
Year of first production 1954
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Cochaccasa

Mineral rights holdings

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

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Cia. De Minas Buenaventura S. A.
    Interest 100
    Home office Peru
    Year 1994

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Measured 287578mt ore
    Indicated 86183mt ore
    Demonstrated 373761mt ore
    Total resources 373761mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.57 wt-pct Copper Minor 1991
    Lead Pb 1 wt-pct Lead Major 1991
    Silver Ag 15.6 g/mt Silver Major 1991
  • Type In-situ
    Estimate year 1993
    Demonstrated 900000mt ore
    Total resources 900000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 408.7 g/mt Silver Major 1993

Comments on the reserve resource information

  • PUBLISHED RESERVES AS OF DECEMBER 1990. SEE BIBLI. R001-002 FOR MORE DATA.
  • FROM THE FINANCIAL TIMES INTL YRBK 1988: RESOURCE = 602,000 TONN ES; GRADES: AG=493PPM; CU=0.48%; PB=1%. TREATED 126,670 ST ORE AT 14.1 OZ/ST AG. RECOVERED 1.626 MILLION OZ AG, 1,696 OZ AU, 645 ST CU, 731 ST PB, AND 81 ST BISMUTH. OTHER NAMES: MIMOSA, ACHILLA, ESTELA, TENTADORA, LUCRETIA, SACRAMENTO, HERMINO MINES.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1975

Reference information

Bibliographic references

  • Reserve-Resource

    THE PERU REPORT'S "LAS MINAS DEL PERU" - "MINES AND MINERS

  • Reserve-Resource

    IN PERU", PAGE 101 - 103.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 44.

  • Deposit

    PURSER, W. F., 1971, METAL-MINING IN PERU, PAST AND PRESENT:

  • Deposit

    PRAEGER PUBS., NEW YORK, 339 PGS.

  • Deposit

    GOODELL, P, PETERSEN, U., 1974, JULCANI MINING DISTRICT, PER

  • Deposit

    STUDY OF METAL RATIOS: ECON. GEOL., VOL. 69, NO. 3, PPS. 347

  • Deposit

    1975 ENGINEERING AND MINING JOURNAL, PAGE 254

General comments

Subject category Comment text
Deposit 6/27/97--CONFIRMED WITH COUNTRY SPEC. THAT MINE IS PRODUCING. JULCANI DISTRICT COMPRISES ACHILLA, ESTELA, TENTADORA, LUCRECIA, SACRAMENTO, HERMINIA M

Reporter information

Type Date Name Affiliation Comment
Reporter 20-JUN-97 Peterson, Gary R. 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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