Mount Pleasant

Past Producer in New Brunswick, Canada with commodities Molybdenum, Tungsten, Bismuth
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. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10133338
MAS/MILS ID 1220200026
Record type Site
Current site name Mount Pleasant

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.99929, 45.41663 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fredericton(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada New Brunswick

Commodities

Commodity Importance
Molybdenum Primary
Tungsten Critical Primary
Bismuth Critical Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Cassiterite Unknown
Chalcopyrite Unknown
Fluorite Unknown
Galena Unknown
Molybdenite Unknown
Pyrite Unknown
Sphalerite Unknown
Topaz Unknown
Wolframite Unknown

Nearby scientific data

Ore Body (1) -66.99929, 45.41663

Economic information

Ore body information

  • Length 1800M
    Width 900M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 910919
  • Area 1800HA
    Field Value
    Total Surface Area (HA) 1800
    Date of Last Modification 910418

Comments on the geologic information

  • UNSPECIFIED IGNEOUS ROCKS: RED FELDSPAR-QUARTZ PORPHYRY

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Open Stope
Year of first production 1954
Milling method Flotation

Ownership information

  • Type Owner-Operator
    Owner Billiton Canada Ltd.
    Interest 50
    Home office Canada
    Year 1982
  • Type Owner
    Owner Brunswick Tin Mines Ltd.
    Interest 50
    Home office Canada
    Year 1982

Comments on the production information

  • PA=5MT WO3/DAY; 1.8 MT MOS2/DAY

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Measured 9150000mt ore
    Demonstrated 9150000mt ore
    Total resources 9150000mt ore
    Commodity Subtype Grade units Group Importance Year
    Molybdenum MoS2 0.2 wt-pct Molybdenum Major 1981
    Tungsten Wo3 0.4 wt-pct Tungsten Major 1981
  • Type In-situ
    Estimate year 1972
    Measured 33600000mt ore
    Demonstrated 33600000mt ore
    Total resources 33600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Molybdenum Mo 0.1 wt-pct Molybdenum Major 1972
    Tungsten Wo3 0.21 wt-pct Tungsten Major 1972
    Bismuth Bi 0.08 wt-pct Bismuth Trace 1972

Comments on the reserve resource information

  • GRADE IS FOR DEMONSTRATED CATEGORY. MEASURED ORE GRADE IS 0.393% WO3, 0.204% MOS2. IN ADDITION, 2,400,000 MT AT 0.42% SN, 0.077% WO3 AND 0.05% MOS2 IS PRESENT IN A SEPARATE ZONE NOT CURRENTLY BEING CONSIDERED FOR DEVELOPMENT. OWNER: SUL-MNG CORO-MT. PLEASANT. OPERATOR: BRUNSWICK TIN MINES LTD. OTHER NAME: BRUNSWICK, PLEASANT TUNGSTEN MINE ON MR189. FORMERLY 1220200003.
  • 85% MINE RECOVERY. 10% ORE DILUTION.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN STOPE
    Percent Waste Rock 20
    Percent Recovery 85
    Length of Inclines (m) 975
    Number of Inclines 2
    1st Condition of Workings OPEN
    Capacity 2600
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.68
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1982

Comments on other economic factors

  • TRANSPORTATION COSTS MILL TO SMELTER: $11.70/MT

Reference information

Bibliographic references

  • Reserve-Resource

    ATKINSON, J.R., GEOLOGY OF MOUNT PLEASANT TUNGSTEN, NEW

  • Reserve-Resource

    BRUNSWICK, CANADIAN MINING JOURNAL, APRIL 1981,PP.73-75

  • Reserve-Resource

    ROSKILL INFORMATION SERVICES; THE ECONOMICS OF TUNGSTEN 6'TH

  • Reserve-Resource

    EDITION 1990. P 65.

  • Deposit

    CANADIAN MINING JOURNAL, OCTOBER 1981, P. 10

  • Deposit

    PETRUCK, W., THE TUNGSTEN-BISMUTH-MOLYBDENUM DEPOSIT OF

  • Deposit

    BRUNSWICK TIN MINES LIMITED: ITS MODE OF OCCURRENCE,

  • Deposit

    MINERALOGY AND AMENDABILITY TO MINERAL BENEFICAIATION,

  • Deposit

    CIM BULLETIN, APRIL 1973, PP. 113-130.

  • Deposit

    PARRISH, I.S., PORPHYRY TUNGSTEN ZONES AT MT. PLEASANT,

  • Deposit

    N.B., CIM BULLETIN, JUNE 1978, PP. 73-100.

  • Deposit

    HOSKING, K.F.G., GEOLOGY, MINERALOGY, AND PARAGENESIS OF THE

  • Deposit

    MOUNT PLEASANT TIN DEPOSITS, MINING IN CANADA, APRIL

  • Deposit

    1963, PP. 20-29.

  • Deposit

    ATKINSON, J.R., MOUNT PLEASANT TAPS 3 TYPES OF BRECCIA,

  • Deposit

    NORTHERN MINER, DECEMBER 17, 1981, P.C6-10.

Reporter information

Type Date Name Affiliation Comment
Reporter 16-OCT-96 Rfb U.S. Bureau of Mines

Beyond USGS

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