1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Lake George

Past Producer in New Brunswick, Canada with commodity Antimony
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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. Ownership information
  11. Production statistics
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10230337
MAS/MILS ID 1220200009
Record type Site
Current site name Lake George
Alternate or previous names Consolidated Durham Mines

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -67.03259, 45.86663 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Danforth(quadrangle 1:100,000 scale)

Fredericton(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada New Brunswick

Commodities

Commodity Importance
Antimony Critical Primary

Materials information

Materials Type of material
Stibnite Unknown

Nearby scientific data

Ore Body (1) -67.03259, 45.86663
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Date of Last Modification 850530

Comments on the geologic information

  • THE MINE WAS SHUT DOWN DUE TO WEAK MARKET CONDITION FOR THE MINERAL.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Discovery year 1863
Mining method Open Stope - Room and Pillar
Year of first production 1880
Milling method Flotation

Ownership information

  • Type Owner-Operator
    Owner Consolidated Durham Mines And Resources, Ltd.
    Interest 100
    Home office Canada
    Year 1982

Production statistics

  • Year 1976
    Description Antimony Concentrate 2875 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Antimony Antimony 2875mt
  • Year 1977
    Description Antimony Concentrate 2569 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Antimony Antimony 2569mt
  • Year 1978
    Description Antimony Concentrate 2544 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Antimony Antimony 2544mt
  • Year 1979
    Description Antimony Concentrate 2847 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Antimony Antimony 2847mt
  • Year 1980
    Description Antimony Concentrate 2315 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Antimony Antimony 2315mt
  • Year 1981
    Description Antimony Concentrate 1645 Mtpy Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Antimony Antimony 1645mt

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Measured 773995mt ore
    Indicated 773995mt ore
    Demonstrated 1547990mt ore
    Inferred 275000mt ore
    Total resources 1822990mt ore
    Commodity Subtype Grade units Group Importance Year
    Antimony Sb 4.15 wt-pct Antimony Major 1982

Comments on the reserve resource information

  • RESERVE WAS ESTIMATED AT CUTOFF GRADE OF 1.5 PCT SB. AT A CUTOFF GRADE OF 2.0 PCT SB, THE RESERVE WAS ESTIMATED AT 548,385 MT.
  • PUBLISHED RESERVES AS SHOWN IN 1987-88 INTERNATIONAL DIRECTORY OF MINING WERE 542,000 MT, GRADING 3.40 PCT SB. MILL PRODUCTION AS LISTED WAS BETWEEN 1,000 TO 10,000 MT PER YEAR, GRADING 65 TO 68 PCT SB.

Workings at the site

  • Type of workings Underground
    Length 350M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OTHER OPEN STOPE METHODS
    Percent Recovery 100
    Length of Inclines (m) 310
    Capacity 360
    Capacity Units MT ORE/DAY
    Unit Production Cost 17.84
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • ADDITIONAL DEVELOPMENT WORK MAY BE NEEDED TO REOPEN THE MINE, SINCE THE PRESENT RESOURCE IS FROM A NEW OREBODY.

Reference information

Bibliographic references

  • Production

    ST. PIERRE, BENOIT, ANTIMONY MILLING AT CONS DURHAM;

  • Production

    CANADIAN MINING JOURNAL, MARCH, 1977, P.27,29.

  • Production

    ST. PIERRE, B. AND B. BOURGOIN, CONSOLIDATED DURHAM MINES

  • Production

    AND RESOURCES LTD.; D.E. PICKETT, ED., IN MILLING

  • Production

    PRACTICE IN CANADA, CIM SPECIAL VOLUME 16, 1978,P.325-327

  • Geology

    ABBOTT, D. AND D. WATSON, MINERALOGY OF THE LAKE GEORGE

  • Geology

    ANTIMONY DEPOSIT, NEW BRUNSWICK; CIM BULL., JULY, 1975,

  • Geology

    P.111-113.

  • Reserve-Resource

    RESOURCES, AS REPORTED BY THE COMPANY, CONSIST OF

  • Reserve-Resource

    548,385 MT WITH A GRADE OF 5.17 PCT AT 2.0 PCT CUTOFF GRADE,

  • Reserve-Resource

    773995 MT AT 4.15 PCT SB.

  • Deposit

    CANADIAN MINES HANDBOOK 1979-80, NORTHERN MINER PRESS LTD.,

  • Deposit

    1979, P.78.

  • Deposit

    NORTHERN MINER, APRIL 5, 1979, P.21.

  • Deposit

    NORTHERN MINER, SOFT PRICES FOR ANTIMONY TRIM DURHAM'S

  • Deposit

    EARNINGS; NOV. 9, 1979, P.3.

  • Deposit

    NORTHERN MINER, ELDORADO PUSHES URANIUM PROGRAM AT CONS.

  • Deposit

    DURHAM; MAY 31, 1979, P.1,2.

  • Deposit

    NORTHERN MINER, ELDORADO STARTING FULL PROGRAM DURHAM

  • Deposit

    URANIUM; FEB. 15, 1979, P.A1, A.21.

  • Deposit

    BROWN, M.R., SUPRISE URANIUM FINDINGS CHANGING DURHAM MINE

  • Deposit

    PICTURE; NOV. 2, 1978, P.1,23.

  • Deposit

    CANADIAN MINING JOURNAL, MARCH, 1978, P.18.

  • Deposit

    MINING JOURNAL, SEPT. 12, 1975, P.196.

  • Deposit

    E/MJ, JAN., 1979, P.31.

  • Deposit

    WORLD MINING, MARCH, 1979, P.86.

  • Deposit

    BROWN, M.R., CONS., DURHAM ORDERS MAJOR PROGRAM AT NEW BRUNS

  • Deposit

    WICK ANTIMONY MINE; NORTHERN MINER, NOV.1, P.1, 8.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-JUN-96 Palencia, Cesar M. 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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