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Peregrina

Producer in Guanajuato, Mexico with commodities Gold, 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. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Ownership information
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10182248
MAS/MILS ID 2010170024
Record type Site
Current site name Peregrina
Alternate or previous names Peregrina Unit

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -101.13367, 21.03385 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Guanajuato

Commodities

Commodity Importance
Gold Secondary
Silver Primary

Nearby scientific data

Ore Body (1) -101.13367, 21.03385
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Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Negociacion Minera Santa Lucia, S. A. De C. V.
    Home office Mexico
    Year 1979
  • Type Owner
    Owner Lacana Mining Corp.
    Interest 30
    Home office Canada
    Year 1979
  • Type Owner
    Owner Minera Mexicana Penoles
    Interest 33
    Home office Mexico
    Year 1979
  • Type Owner
    Owner Compania Fresnillo S. A.
    Interest 37
    Home office Mexico
    Year 1979

Comments on other economic factors

  • RECOVERY OF A HIGH PROPORTION OF THE GOLD AND SILVER CONTENT OF THE ORE (95% AND 90% RESPECTIVELY) IS ACHIEVED BY A RELATIVELY SIMPLE FLOTATION PROCESS TO SEPARATE METALLIC SULPHIDES. SOME NATIVE SILVER IS LOST, BUT THE NATIVE GOLD SEPARATES WITH THE PYRITE. THE PLANT HAS A MAXIMUM CAPACITY OF 2,400 TONNE/DAY WITH AN INPUT FEED RATE OF 183 TONNE/HOUR MAXIMUM. ORE FROM THE SATELLITE MINES IS DELIVERED BY TRUCK TO 3 450 TONNE BINS, WHILE THE ORE FROM THE TORRES-CEDROS MINE GUANAJUATO SHAFT DISCHARGES DIRECTLY INTO 2 600 TONNE BINS, FEEDERS BELOW EACH OF THE BINS DISCHARGE ONTO BELT CONVEYERS: THE FEED RATES OF BOTH THE SATELLITE MINE ORE AND THE TORRES-CEDROS ORE ARE MEASURED FOR CONTROL PURPOSES BY BELT WEIGHERS. THE NOMINAL INPUT FEED SIZE IS MINUS 15 CM. THE CRUSHING CIRCUIT CONSISTS OF A SYMONS STANDARD 5.5 FT. DIAMETER CONE CRUSHER FOLLOWED BY A PAIR OF PARALLEL 16 FT. LONG BY 6 FT. WIDE ALLIS-CHALMERS VIBRATORY SCREENS PASSING 1.3 CM. OVERSIZE IS RECRUSHED IN A 5.5 FT. SHORT-HEAD CONE CRUSHER IN CLOSED CIRCUIT. THE PRODUCT FROM THE CRUSHING/SCREENING CIRCUIT IS 48% MINUS 0.95 CM. THE CRUSHED ORE IS WEIGHED AND SAMPLED BEFORE PASSING TO SIX 550 TONNE CAPACITY MILL FEED BINS BIA A JOY TRAVELLING TRIPPER: THIS STORAGE ALLOWS ABOUT ONE AND ONE-HALF DAYS MILL OPERATION IF INPUT FROM THE MINES ARE DISRUPTED. ORE IS DRAWN FROM THE MILL FEED BINS AT A CONTROLLED RATE AND IS GROUND IN A NORDBERG BALL MILL, 19.5 FT. LONG BY 15 FT. DIAMETER, TO 27% MINUS 200 MESH. FOUR KREBS D20B CYCLONES SEPARATE OVERSIZE UNDERFLOW AND RETURN IT FOR REGRINDING: THE FINAL PRODUCT IS 63% MINUS 200 MESH. THE FLOTATION FEED PULP IS STORED IN A DISTRIBUTOR BEFORE BEING TREATED IN A BANK OF 5 AGITAIR 12A PRIMARY ROUGHER CELLS AND THEN A BANK OF 5 SIMILAR SECONDARY CELLS. THE TAILINGS FROM THESE CELLS ARE PUMPED TO A CIRCUIT OF FOUR CYCLONES TO REMOVE SAND FOR USE AS BACKFILL IN THE MINE. THE OVERFLOW FROM THESE CYCLONES PASSES TO A 150 FT DIAMETER BY 15 FT. THICKENER. THE OVERFLOW FROM THIS IS PIPED TO MILL WATER CONTROL AND SUPPLY TANKS, WHILE THE UNDERFLOW IS PUMPED TO A TAILINGS DAM AT LA CORONELA, A NEARBY VALLEY SITE. THE CONCENTRATE OBTAINED FROM THE ROUGHER FLOTATION CELLS IS THICKENED IN A 40 FT. DIAMETER BY 8 FT. TANK AND THEN REGROUND IN A 5 FT. BY 8.5 FT. ALLIS-CHALMERS BALL MILL, WITH TWO D10B CYCLONES IN CLOSED CIRCUIT, TO PROVIDE A PRODUCT 98% MINUS 200 MESH. THIS IS TREATED IN A BANK OF 12 DENVER DR-21 CLEANER CELLS; THE CONCENTRATE FROM THESE IS RECLEANED IN A BANK OF 8 DENVER 18-SP CELLS. THE TAILINGS FROM THE RE-CLEANERS ARE RETURNED TO JOIN THE FEED FROM THE REGRIND CYCLONES TO THE FIRST RECLEANER BANK, WHILE THE CONCENTRATE IS PUMPED TO A 25 FT DIAMETER BY 8 FT. HIGH THICKENER. THE UNDERFLOW FROM THIS IS PUMPED VIA TWO D4B CYCLONES TO AN EIMCO 6 FT. DIAMETER FOUR DISC FILTER, FROM WHICH THE FILTER CAKE DROPS DIRECTLY THROUGH A GRID OF BARS INTO A LOCKED STORAGE BASEMENT. FROM THIS IT IS LOADED INTO LOCKED TRANSPORT TRUCKS FOR CARRIAGE TO THE INDUSTRIAS PENOLES SA SMELTER AT TORREON, COAHUILA.

Reference information

Bibliographic references

  • Reserve-Resource

    MINING MAGAZINE, JUNE 1976, P. 497.

  • Reserve-Resource

    STAFF, INTERNATIONAL DIRECTORY OF MINING AND MINERAL

  • Reserve-Resource

    PROCESSING OPERATIONS. MCGRAW HILL, NEW YORK, 1978,

  • Reserve-Resource

    P. 317.

  • Deposit

    MINING MAGAZINE, FEBRUARY 1979, P. 110.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-AUG-1992 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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