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Acoje

Producer in Zambales, Philippines with commodities Nickel, Chromium, Platinum, Palladium, Gold, Silver, Copper, Iron, Cobalt
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10111259
MRDS ID W029722
Record type Site
Current site name Acoje
Alternate or previous names Santa Cruz

Geographic coordinates

Geographic coordinates: 120.06599, 15.71673 (WGS84)
Relative position A 27 KM FEEDER ROAD CONNECTS THE PROPERTY WITH THE NATIONAL HIGHWAY AT BARRIO LUCAPON, STA. CRUZ

Site location context

Political divisions (FIPS codes)

Zambales(province)

Philippines(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Philippines Zambales

Comments on the location information

  • IN SITIO PASICAR, SANTA CRUZ, ZAMBALES, LUZON ISLAND.

Commodities

Commodity Importance
Nickel Critical Primary
Chromium Critical Primary
Platinum Critical Secondary
Palladium Critical Secondary
Gold Secondary
Silver Secondary
Copper Secondary
Iron Tertiary
Cobalt Critical Tertiary

Comments on the commodity information

  • PLATIN GROUP METALS ARE HERE PALLADIUM AND PLATINUM

Materials information

Materials Type of material
Chalcopyrite Ore
Chromite Ore
Goethite Ore
Gold Ore
Hematite Ore
Magnetite Ore
Pentlandite Ore
Pyrrhotite Ore
Silver Ore
Antigorite Gangue
Asbestos Gangue
Chlorite Gangue
Chrysotile Gangue
Garnierite Gangue
Tremolite Gangue

Alteration

  • (Local) Serpentinization

Analytical data

Result THE GRADE OF RECOVERY OF NICKEL VARIES FROM 0.20 % TO 80 % WITH NI:CU RATIO RANGING FROM 1:1 TO 1:5

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock
    Rock unit name Ultrabasic Rocks
    Rock description Ultrabasic Rocks
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Sandstone, Fossiliferous Limestone;Ultrabasic Rocks
    Rock description Sandstone, Fossiliferous Limestone;Ultrabasic Rocks
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

(1) 120.06599, 15.71673
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Very Closely To A Basal Contact To The Ultramafic To Mafic Rock Mass. Gravity Fault Nw Trending

Ore body information

  • General form IRREGULAR, LENS
    Strike NNE
    Dip STEEPLY TO EAST
    Thickness 25M

Comments on the geologic information

  • THE ACOJE PROPERTY IS UNDERLAIN BY CRETACEOUS ULTRABASIC ROCKS.YOUNGER GABBROIC ROCKS INTRUDE THESE ROCKS ON THE EASTERN SIDE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1950
Discoverer Hulin
Year of first production 1935

Mining district

District name Zambales District

Ownership information

  • Type Operator
    Owner Acoje Mining Co., Inc.

Production statistics

  • Year 1971
    Material NI
    Accuracy Accurate
    Description Ap_Grade: ^48% Cr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 48wt-pct
  • Year 1972
    Material NI
    Accuracy Accurate
    Description Ap_Grade: ^0.7% Ni
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Nickel Nickel 1wt-pct

Comments on the production information

  • THE CONCENTRATE CONTAINS: 16.1 % NI, 1.8 % CO, 2.9 % CU,20.2 G PERTON PT, 33.6 G PER TON PD, 4.9 G PER TON AU, 13.9 PER TON AG

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 1015000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.47 wt-pct Nickel Major 1986
  • Type In-situ
    Estimate year 1982
    Total resources 2850000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 18 wt-pct Nickel Major 1982
  • Type In-situ
    Estimate year 1975
    Total resources 510000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.55 wt-pct Nickel Major 1975

Comments on development

  • GEOLOGICAL, GEOCHEMICAL AND GEOPHYSICAL APPROACH HAVE COMPLEMENTED ONE ANOTHER IN DELINEATING NICKEL SULFIDE ORE RESERVES ; ECON.COM: ACOJE STOPPED PRODUCTION IN 1976

Reference information

Bibliographic references

  • Deposit

    PARINGIT 1975: NICKEL SULFIDE DEPOSITS AND EXPLORATION WORKS AT ACOJE MINE;JOURNAL OF THE GEOL. SOC. OF THE PHILIPPINES, VOL.XXIX,SEPT.1975, NO.3

  • Deposit

    BGR, JAN. 1978, ROHSTOFFWIRTSCHAFTLICHE LAENDERBERICHTE, PHILIPPINEN.

  • Deposit

    DEYOUNG AND OTHERS, 1984, INTERNATIONAL STRATEGIC MINERALS INVENTORY SUMMARY REPORT-- CHROMIUM: U.S. GEOLOGICAL SURVEY CIRCULAR 930-B, 41 P.

  • Deposit

    PHILIPPINE BUREAU OF MINES AND GEO-SCIENCES, 1986, GEOLOGY AND MINERAL RESOURCES OF THE PHILIPPINES, VOLUME 2: MINERAL RESOURCES: MANILA, PHILIPPINES, PHILIPPINE BUREAU OF MINES AND GEO-SCIENCES, 446 P.

  • Deposit

    BROWN, B.C., 1972, MINERAL INDUSTRY OF THE PHILIPPINES: 1972 U.S. BUREAU OF MINES MINERALS YEARBOOK, P. 13.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 1976, INTERNATIONAL DIRECTORY, P. 269.

  • Deposit

    IRVING, E.M., AND HULIN, C.D., 1950, POTENTIAL NI-PT MINE AT ACOJE, SANTA CRUZ, ZIMBALES: PHILIPPINE GEOLOGY, V. 4, NO. 4.

  • Deposit

    WEST, J.M., 1972, PLATINUM-GROUP METALS: U.S. BUREAU OF MINES MINERALS YEARBOOK, VOL. 1, P. 1052.

  • Deposit

    ROA, C., 1953, CHROMITE IN PHILIPPINES: PHILIPPINE BUREAU OF MINES INFORMATION CIRCULAT NO. 15, P. 8.

  • Other Database

    ISMI

  • Production

    PHILIPPINE BUREAU OF MINES AND GEO-SCIENCES, 1986.

  • Reserve-Resource

    DEYOUNG AND OTHERS, 1984; PHILIPPINE BUREAU OF MINES AND GEO-SCIENCES, 1986

General comments

Subject category Comment text
Deposit MORE THAN 40 OREBODIES HAVE BEEN IDENTIFIED. BLACK DUNITE (COLOR DUE TO DUST SIZE INCLUSIONS) IS MOST FAVORABLE HOST. ORE BODIES OCCUR IN A 350 M WIDE MINERALIZED ZONE.
Deposit CONCENTRATES WERE DELIVERED TO SUMITOMO, JAPAN UP TO 1976. THIS RECORD INCLUDES DATA FROM RECORDS W002829, W007216, W007218, M046910, AND M047020 WHICH HAVE BEEN DELETED FROM THE DATABASE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1977 Saam, Henning G. U.S. Geological Survey
Updater 01-JAN-1988 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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