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Bernic Lake

Producer in Manitoba, Canada with commodities Lithium, Cesium, Rubidium, Tantalum, Niobium (Columbium), Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10106784
MRDS ID ISM0479
Record type Site
Current site name Bernic Lake
Alternate or previous names Tanco, Montgary

Geographic coordinates

Geographic coordinates: -95.45033, 50.43333 (WGS84)
Relative position CENTROID,2 KM

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Manitoba

Comments on the location information

  • ABOUT 140KM ENE OF WINNIPEG,NEAR BORDER TO ONTARIO,ADJACENT TO WHITESHELL PROVINCIAL PARK;ABOUT 140KM(DIRECT)ENE FROM WINNIPEG.OUTCROP NE SHORE OF BERNIC LAKE;MAIN PORTION OF DEPOSIT BELOW LAKE.

Commodities

Commodity Importance
Lithium Critical Primary
Cesium Critical Primary
Rubidium Critical Primary
Tantalum Critical Primary
Niobium (Columbium) Critical Primary
Tin Critical Primary

Comments on the commodity information

  • LITHIUM,TA,CS,RB, OCCUR.SN

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Rice Lake Group;Rice Lake Group;Lac Du Bonnet Plutone
    Rock description Rice Lake Group;Rice Lake Group;Lac Du Bonnet Plutone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate

Nearby scientific data

(1) -95.45033, 50.43333
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Bird River Formation(Greenstone Belt)

Ore body information

  • Depth to top 20M

Comments on the geologic information

  • ; MICROCLINE.ALBITE,SPODUMENE,AMBLYGONITE,POLLUCITE,TA-MINERALS,BERYLL,PETALITE, LEPIDOLITE.; 9ZONES OF DIFFERENT MINERAL COMPOSITION:BORDER ZONE(BZ),WALL ZONE(WZ) ALBITIC APLITE(AA),LOWER INTERMED.ZONE(LI),UPPER INTERMED ZONE(UI),CENTRAL INTERMED.ZONE(CI),QUARTZ ZONE(QZ),POLLUCITE ZONE(PZ),LEPIDOLITE ZONE(LZ)

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1929
Year of first production 1984
Year of last production 1987

Mining district

District name Cat Lake-Winnipeg River Pegmatite Field

Ownership information

  • Type Operator
    Owner Hudson Bay Mining And Smelting Co.Ltd.(Mngment.Contract)
  • Type Owner
    Owner Tantalum Mining Corp. Of Canada,Ltd. (Tanco)

Production statistics

  • Year 1984
    Material CON-LI
    Accuracy Estimate
    Description Ap_Grade: ^7.25% Li-Oxide
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Lithium Lithium 7wt-pct
  • Year 1985
    Material CON-LI
    Accuracy Estimate
    Description Ap_Grade: ^7.25% Li-Oxide
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Lithium Lithium 7wt-pct
  • Year 1986
    Material CON-LI
    Accuracy Estimate
    Description Ap_Grade: ^7.25% Li-Oxide
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Lithium Lithium 7wt-pct

Comments on the production information

  • TARGET FOR 1987:2000 TONNES GRADING AT 7.25% LI-OXIDE

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Total resources 296000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lithium LiO2 2.67 wt-pct Lithium Major 1985

Comments on the reserve resource information

  • FIGURE WAS CONFIRMED BY COMPANY (VISIT JUNE 87)
  • IDENTIFIED CONTAINED LI-METAL

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). DEVELOPMENT(YES); EXPLORATION(UNKNOWN); ASSESSMENT(PARTS OF BENEFICIATION PLANT ARE FROM FORMER TA OPERATION,PROBLEMS FOR LI PROD.MAY ARISE WHEN TA OPERS.ARE STARTED AGAIN.); MINING COST PROBABLY NEAR 16.5$/TONNE

Reference information

Bibliographic references

  • Deposit

    CERNY,P.,TRUEMAN,D.L.ET AL.,1981:THE CAT LAKE-WINNIPEG RIVER AND THE WEKUSKO LAKE PEGMATITE FIELDS,MANITOBA.-MANITOBA DEPT.OF ENERGY & MINES,ECON.GEOL REPORT ER80-1 216 P.MAPS

  • Deposit

    MULLIGAN,R.,1965:GEOLOGY OF CANADIAN LITHIUM DEPOSITS.--GEOL.SURV.CANADA,ECONOMIC GEOLOGY REPORT NO.21

  • Deposit

    CERNY.P.(EDITOR),1982:SHORT COURSE IN GRANITIC PEGMATITES IN SCIENCE AND INDUSTRY.-MIN.ASSOC.OF CANADA,555P.

  • Deposit

    TURNOCK.A.C.(EDITOR),1971: GEOSCIENCE STUDIES IN MANITOBA.-GEOL.ASSOC.OF CANADA,SPEC.PAPER NO.9,DECEMBER 1971,352 P.

  • Deposit

    E.M.R.CANADA,1986:LITHIUM,AN IMPORTED COMMODITY.-EMR,MINERAL BULL.MR 212, 46P.

  • Deposit

    CROUSE,R.A.& CERNY,P.,1972:THE TANCO PEGMATITE AT BERNIC LAKE, MANITOBA; GEOLOGY AND PARAGENESIS.--CANADIAN MINERALOGIST.VOL.11,PP591-608

  • Deposit

    CERNY,P.,& FERGUSON,R.B.,1972: THE TANCO PEGMATITE AT BERNIC LAKE,MANITOBA; PETALITE AND SPODUMENE RELATIONS.--CANADIAN MINERALOGIST,VOL.11,PP 660-678

  • Deposit

    GAUPP,R.,MOELLER,P.& MORTEANI,G.,1984:TANTAL-PEGMATITE;GEOLOGISCHE UND GEOCHEMISCHE UNTERSUCHUNGEN.- MONOGRAPH SERIES ON MINERAL DEPOSITS NO.23 GEBRDER BORNTRAEGER, BERLIN,124P

  • Deposit

    LASMANI,R.,1978:LITHIUM RESOURCES IN THE YELLOWKNIFE AREA,NW TERRITORIES,CANADA.--IN:PENNER,S.S.(EDITOR):LITHIUM NEEDS AND RESOURCES.PERGAMON PRESS,1978

  • Deposit

    AUBERT,G.,1963: LE LITHIUM.---BULL.DU B.R.G.M.NO.2;P.27-93,PARIS,1963

  • Production

    INFO OBTD.DURING VISIT AT MINE SITE JUNE,9.87

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). UNDERGROUND 8M,WATER CRUSHING GRINDING FLOTATION MAG.SEPARATION.
Deposit First Production Year: 1984 FOR LI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Krauss, Ulrich H. Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)

Beyond USGS

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

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