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  3. Mineral Resource Data System (MRDS)

Mt. Weld

Prospect in Western Australia, Australia with commodity REE
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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. Reserves and resources
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10280823
MAS/MILS ID 6020550164
Record type Site
Current site name Mt. Weld

Geographic coordinates

Geographic coordinates: 122.43249, -28.84619 (WGS84)
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

Western Australia(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Western Australia

Commodities

Commodity Importance
REE Critical Primary

Nearby scientific data

(1) 122.43249, -28.84619
ListMap

Economic information

Comments on the geologic information

  • MINERAL ASSEMBLAGES IN THE SUPERGENE ZONE CONSIST OF IN- SOLUABLE FERRIC IRON OXIDES WITH ADSORBED NB-TA CLAYS, CRANDELLITE GROUP MINERALS, SECONDARY PHOSPHATES, MANGANIFEROUS WAD, AND REO. THE RESIDUAL ZONE CONTAINS APATITE, MAGNETITE, ILMENITE, PYROCHLORE, MONAZITE, AND SILICATES. PRIMARY CARBONATITE CONTAINS CALCITE, DOLOMITE, APATITE, BIOTITE, MAGNETITE, OLIVENE, AND PYROCHLORE.
  • THIS DEPOSIT CONSISTS OF A CARBONATITE INTRUSION, ABOUT 4 KM IN DIAMETER, IN THE PROTEROZOIC, FOLLOWED BY EXTENSIVE WEATHERING DURING THE TERTIARY TO FORM RESIDUAL AND SUPER- GENE ZONES. OVERLYING TERRESTIAL LAKES FORMED ALSO DURING THE TERTIARY, LEADING TO QUATERNARY ALLUVIAL FAN DEVELOPMENT COVERING THE DEPOSIT.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1966
Mining method Open Pit
Milling method Unspecified

Ownership information

  • Type Owner-Operator
    Owner Carr Boyd Minerals Ltd.
    Interest 100
    Year 1991
  • Type Owner
    Owner Ashton Mining Ltd.
    Interest 100
    Year 1991

Comments on the production information

  • PRODUCTION IS TENTATIVELY SCHEDULED FOR 50,000 MTPY ORE AT 23.6% REO TO PRODUCE 10,000 MTPY OF CONCENTRATE AT 50% REO.
  • BENEFICIATION RECOVERY FACTOR OF 42.4%.

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Demonstrated 1350000mt ore
    Total resources 1350000mt ore
    Commodity Subtype Grade units Group Importance Year
    REE Y Group 23.6 wt-pct REE Major 1990
  • Type In-situ
    Estimate year 1990
    Demonstrated 6310000mt ore
    Total resources 6310000mt ore
    Commodity Subtype Grade units Group Importance Year
    REE Y Group 16.2 wt-pct REE Major 1990

Comments on the reserve resource information

  • THE IDENTIFIED ORE OF 6.3 MMT HAS A GRADE OF 17.22% REO + Y2O3
  • REFERENCES: E&MJ, JAN 1990; MINING JOURNAL, NOV 17 1989; INDUSTRIAL MINERALS, SEPT 1988.

Comments on other economic factors

  • THE PROJECT IS UNDERGOING A FEASIBILITY STUDY SCHEDULED FOR COMPLETION IN EARLY 1992. SOME OF THE TESTING ON BULK SAMPLES IS ORIENTED TOWARDS RECOVERY/REFINING OF THE REO BY MECHANICAL MEANS, RATHER THEN BY CHEMICAL TREATMENT. CAMPAIGN OF MINING AND BENEFICIATING LASTS 3 MONTHS PER YEAR.

Reference information

Bibliographic references

  • Deposit

    INDUSTRIAL MINERALS, SEPT 1988, PG 16

  • Deposit

    AUSTRALIA'S MINING MONTHLY, OCT 1988, PG 95

  • Deposit

    AUSTRALIA'S MINING MONTHLY, SEPT 1988, PG 41

  • Deposit

    INDUSTRIAL MINERALS, FEB 1989, PG 10

  • Deposit

    PROSPECT, WINTER, 1989, PG 16

  • Deposit

    MINING JOURNAL, NOV 3, 1989, PG 361

  • Deposit

    THE MINER, NOV 1989, PG 28

  • Deposit

    MINING JOURNAL, NOV 17, 1989, PG 402

  • Deposit

    INDUSTRIAL MINERALS, DEC 1989, PG 8

  • Deposit

    PROSPECT, SUMMER, 1989/90, PG 39

  • Deposit

    E&MJ, JAN 1990, PG 14

  • Deposit

    METALS & MINERALS ANNUAL REVIEW - 1990, PG 78

  • Deposit

    MINING JOURNAL, APR 10, 1990

  • Deposit

    INDUSTRIAL MINERALS, MAY 1990, PG 8

  • Deposit

    PROSPECT, JUN-AUG 1990, PG 33

  • Deposit

    INTERNATIONAL MINING, JUN 1990, PG 42

  • Deposit

    MINING JOURNAL, JUN 1, 1990, PP 432 & 448

  • Deposit

    RF TRIP REPORT, JUNE 14, 1990

  • Deposit

    INDUSTRIAL MINERALS, JULY 1991

  • Deposit

    INDUSTRIAL MINERALS, FEB 1989

Reporter information

Type Date Name Affiliation Comment
Reporter 24-SEP-96 Jackson, Wayne 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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