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Silvana Silmonac

Plant in British Columbia, Canada with commodities Cadmium, Lead, Silver, Zinc
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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. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10303093
MAS/MILS ID 1220100018
Record type Site
Current site name Silvana Silmonac
Alternate or previous names The Silmonac Mine, Silmonac, The Minniehaha Mine, The Mascot Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -117.25112, 49.96986 (WGS84)
Elevation 1470

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nelson(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Cadmium Tertiary
Lead Primary
Silver Primary
Zinc Critical Primary

Materials information

Materials Type of material
Calcite Unknown
Galena Unknown
Pyrargyrite Unknown
Quartz Unknown
Siderite Unknown
Sphalerite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -117.25112, 49.96986
ListMap

Economic information

Ore body information

  • Strike N90E
    Dip 45S
    Thickness 1M
    Length 1400M
    Width 90M
    Area 2.5HA
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 FISSURE VEIN
    Shape of Orebody #2 PIPELIKE
    Type of Orebody #3 BRECCIA FILL
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control IGNEOUS
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 SERICITIC
    Strike And Dip N90E:45S
    Total Surface Area (HA) 2.5
    Date of Last Modification 910725

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant No
Discovery year 1895
Year of first production 1913
Plant type Beneficiation (Mill)
Plant subcategory Flotation

Mining district

District name Kootenay

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Federal Lease
Type of mineral rights Located Claim

Ownership information

  • Type Owner
    Owner Treminco Resources Ltd.
    Interest 100
    Home office Canada
    Year 1990

Production statistics

  • Year 1913
    Material ore
    Ore mined 1.1mt
    Description Mined 1 Short Tons
    Ag 51 Oz
    Pb 612 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 1586.27g
    Major Lead Lead 277.59mt
  • Year 1970
    Material ore
    Ore mined 14252.88mt
    Description Mined/Milled 12930 Short Tons
    Ag 252940 Oz
    Pb 940999 Lbs
    Zn 1744998 Lbs
    Cd 11676 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 5296.14mt
    Major Zinc Zinc 791517.77mt
    Major Lead Lead 426829.96mt
    Major Silver Silver 7867314.48g
  • Year 1971
    Material ore
    Ore mined 43192.95mt
    Description Mined/Milled 39184 Short Tons
    Ag 698272 Oz
    Pb 5002521 Lbs
    Zn 5154762 Lbs
    Cd 33722 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 15296.04mt
    Major Zinc Zinc 2338160.71mt
    Major Lead Lead 2269105.35mt
    Major Silver Silver 21718689.88g
  • Year 1972
    Material ore
    Ore mined 30235.28mt
    Description Mined/Milled 27429 Short Tons
    Ag 450841 Oz
    Pb 3187325 Lbs
    Zn 3629037 Lbs
    Cd 23882 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 10832.69mt
    Major Zinc Zinc 1646103.49mt
    Major Lead Lead 1445746.3mt
    Major Silver Silver 14022724.47g
  • Year 1973
    Material ore
    Ore mined 15448.88mt
    Description Mined/Milled 14015 Short Tons
    Ag 202504 Oz
    Pb 1513201 Lbs
    Zn 1517227 Lbs
    Cd 9533 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 4324.09mt
    Major Zinc Zinc 688202.59mt
    Major Lead Lead 686376.42mt
    Major Silver Silver 6298579.31g
  • Year 1974
    Material ore
    Ore mined 13265.21mt
    Description Mined/Milled 12034 Short Tons
    Ag 158422 Oz
    Pb 345153 Lbs
    Zn 1012970 Lbs
    Cd 5915 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 459475.46mt
    Major Lead Lead 156558.76mt
    Major Silver Silver 4927475.66g
    Trace Cadmium Cadmium 2682.99mt
  • Year 1975
    Material ore
    Ore mined 13277.33mt
    Description Mined/Milled 12045 Short Tons
    Ag 226639 Oz
    Pb 1364687 Lbs
    Zn 1153653 Lbs
    Cd 6482 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 2940.18mt
    Major Zinc Zinc 523288.19mt
    Major Lead Lead 619011.61mt
    Major Silver Silver 7049261.83g
  • Year 1976
    Material ore
    Ore mined 20284.72mt
    Description Mined/Milled 18402 Short Tons
    Ag 245777 Oz
    Pb 1953114 Lbs
    Zn 1789277 Lbs
    Cd 10236 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 4642.97mt
    Major Zinc Zinc 811602.39mt
    Major Lead Lead 885917.6mt
    Major Silver Silver 7644520.24g
  • Year 1977
    Material ore
    Ore mined 19294.85mt
    Description Mined/Milled 17504 Short Tons
    Ag 333238 Oz
    Pb 2502545 Lbs
    Zn 2113927 Lbs
    Cd 8807 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 3994.78mt
    Major Zinc Zinc 958861.15mt
    Major Lead Lead 1135135.31mt
    Major Silver Silver 10364861.8g
  • Year 1978
    Material ore
    Ore mined 19400.67mt
    Description Mined/Milled 17600 Short Tons
    Ag 261168 Oz
    Pb 2043914 Lbs
    Zn 1527736 Lbs
    Cd 8209 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 3723.53mt
    Major Zinc Zinc 692969.39mt
    Major Lead Lead 927103.79mt
    Major Silver Silver 8123233.92g
  • Year 1979
    Material ore
    Ore mined 23846.29mt
    Description Mined/Milled 21633 Short Tons
    Ag 303074 Oz
    Pb 2117136 Lbs
    Zn 1950195 Lbs
    Cd 10937 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 4960.93mt
    Major Zinc Zinc 884593.57mt
    Major Lead Lead 960316.73mt
    Major Silver Silver 9426656.4g
  • Year 1980
    Material ore
    Ore mined 34292.89mt
    Description Mined/Milled 31110 Short Tons
    Ag 268560 Oz
    Pb 1996137 Lbs
    Zn 1882467 Lbs
    Cd 9722 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 4409.82mt
    Major Zinc Zinc 853872.66mt
    Major Lead Lead 905432.51mt
    Major Silver Silver 8353150.85g
  • Year 1981
    Material ore
    Ore mined 33622.69mt
    Description Mined/Milled 30502 Short Tons
    Ag 381990 Oz
    Pb 2545999 Lbs
    Zn 2117379 Lbs
    Cd 9125 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 11881218.7g
    Trace Cadmium Cadmium 4139.03mt
    Major Zinc Zinc 960426.95mt
    Major Lead Lead 1154845.72mt
  • Year 1982
    Material ore
    Ore mined 31821.51mt
    Description Mined/Milled 28868 Short Tons
    Ag 345799 Oz
    Pb 2084070 Lbs
    Zn 1661507 Lbs
    Cd 110 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 49.89mt
    Major Zinc Zinc 753646.89mt
    Major Lead Lead 945318.25mt
    Major Silver Silver 10755552.62g
  • Year 1983
    Material ore
    Ore mined 34307.22mt
    Description Mined/Milled 31123 Short Tons
    Ag 282592 Oz
    Pb 1879970 Lbs
    Zn 2011742 Lbs
    Cd 10948 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Cadmium Cadmium 4965.92mt
    Major Zinc Zinc 912510.82mt
    Major Lead Lead 852740.04mt
    Major Silver Silver 8789594.9g
  • Year 1984
    Material ore
    Ore mined 8969.5mt
    Description Mined/Milled 8137 Short Tons
    Ag 174217 Oz
    Pb 1736268 Lbs
    Zn 1006275 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 456438.66mt
    Major Lead Lead 787557.91mt
    Major Silver Silver 5418755.14g
  • Year 1985
    Material ore
    Ore mined 28018.54mt
    Description Mined/Milled 25418 Short Tons
    Ag 480644 Oz
    Pb 4763576 Lbs
    Zn 3350938 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 1610678.38mt
    Major Lead Lead 2160721.72mt
    Major Silver Silver 14949701.52g
  • Year 1986
    Material ore
    Ore mined 26647.26mt
    Description Mined/Milled 24174 Short Tons
    Ag 475613 Oz
    Pb 4782431 Lbs
    Zn 3458564 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 1568778.24mt
    Major Lead Lead 2169274.21mt
    Major Silver Silver 14793219.9g
  • Year 1987
    Material ore
    Ore mined 31028.95mt
    Description Mined/Milled 28149 Short Tons
    Ag 490303 Oz
    Pb 5266131 Lbs
    Zn 3297834 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 1495872.33mt
    Major Lead Lead 2388676.84mt
    Major Silver Silver 15250130.04g
  • Year 1988
    Material ore
    Ore mined 33523.48mt
    Description Mined/Milled 30412 Short Tons
    Ag 413856 Oz
    Pb 3675307 Lbs
    Zn 4332544 Lbs
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 1965208.9mt
    Major Lead Lead 1667091.21mt
    Major Silver Silver 12872362.23g
  • Year 1989
    Material ore
    Ore mined 33069.33mt
    Description Mined/Milled 30000 Short Tons

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Indicated 49323mt ore
    Inferred 49323mt ore
    Total resources 49323mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 479 g/mt Silver Major 1985
    Lead Pb 5.51 wt-pct Lead Major 1985
    Zinc Zn 6.19 wt-pct Zinc Major 1985
  • Type In-situ
    Estimate year 1987
    Indicated 50000mt ore
    Inferred 50000mt ore
    Total resources 50000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 402 g/mt Silver Major 1987
    Lead Pb 4.9 wt-pct Lead Major 1987
    Zinc Zn 5.4 wt-pct Zinc Major 1987
  • Type In-situ
    Estimate year 1988
    Indicated 33636mt ore
    Inferred 33636mt ore
    Total resources 33636mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 430 g/mt Silver Major 1988
    Lead Pb 5 wt-pct Lead Major 1988
    Zinc Zn 5.8 wt-pct Zinc Major 1988
  • Type In-situ
    Estimate year 1990
    Indicated 38818mt ore
    Inferred 38818mt ore
    Total resources 38818mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 327 g/mt Silver Major 1990
    Lead Pb 4.1 wt-pct Lead Major 1990
    Zinc Zn 5.4 wt-pct Zinc Major 1990

Comments on the reserve resource information

  • ALL RESOURCE QUANTITIES AND GRADES HAVE BEEN CONVERTED TO METRIC UNITS FOR THIS REPORT. THESE QUANTITIES ARE TYPICALLY REPORTED IN IMPERIAL UNITS IN THE LITERATURE FOR THIS MINE.
  • DISCREPANCIES EXIST BETWEEN PUBLISHED (AND UNPUBLISHED) QUANTITIES FOR ORE MINED VERSUS QUANTITIES MILLED. THIS IS NOT JUSTIFIED IN ANY REFERENCE BY CITING STOCKPILING OR PRESORTING ORE FROM THE MINE TO THE ON-SITE MILL. ALL REFERENCES STATE AVERAGE MINED QUNTITIES OF 150 SHORT DRY TONS PER DAY WHILE MILL INPUTS ARE STATED TO BE 125 SHORT DRY TONS PER DAY. THIS MINE HAS TYPICALLY RELIED ON AN ONGOING EXPLORATION PROGRAM AND AS A RESULT HAS PRODUCED SINCE THE TURN OF THE CENTURY WITH NEVER MORE HAN 2 YEARS OF RESERVES ON THE BOOKS.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method ROOM AND PILLAR 10-34
    Percent Waste Rock 15
    Percent Recovery 85
    Rock Support Chars. UNSUPPORTING MAY SLOUGH
    Mine Support Chars. STEEL W/LAGGING CONCRETE REINFOR
    Number of Shafts 0
    Number of Inclines 0
    Number of Adits 2
    Capacity 136
    Capacity Units MT ORE/DAY
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1990

Comments on other economic factors

  • CONCENTRATES FROM BOTH THE LEAD AND ZINC CIRCUITS DESCRIBED IN CONCENTRATOR TABLES 1 AND 2 RESPECTIVELY, ARE TRUCKED TO THE COMINCO SMELTER IN TRAIL, BRITISH COLUMBIA, CANADA FOR FURTHER PROCESSING.

Reference information

Bibliographic references

  • Production

    NATIONAL MINERAL INVENTORY MINFILE NO. 082FNW050.

  • Production

    DICKENSON MINES LIMITED, FORM 10K FOR THE YEAR 1986.

  • Reserve-Resource

    ANONYMOUS, EXPLORATION THAT PUT SILVANA BACK TO WORK -

  • Reserve-Resource

    A DICKENSON HIGHLIGHT; THE NORTHERN MINER, MARCH 7, 1985.

  • Reserve-Resource

    ANONYMOUS, DICKENSON ANNUAL REPORT FOR THE YEAR 1988.

  • Reserve-Resource

    ANONYMOUS, TREMINCO TAKES SMALL LOSS DURING EVENTFUL FISCAL

  • Reserve-Resource

    YEAR; THE NORTHERN MINER, DEC. 24, 1990, P6.

  • Deposit

    REF-THE FINANCIAL POST SURVEY OF MINES,1975,P148,

  • Deposit

    REF-B.C. DEPT. OF MINES & PET.RES.,GEM;1970,P452-3; 1973,P78

  • Deposit

    GENERAL, DEVELOPMENT, PRODUCTION

  • Deposit

    TREMINCO RESOURCES LTD. INTERIM REPORT PAMPHLET, NINE MONTHS

  • Deposit

    ENDED APRIL 30 1990.

  • Deposit

    FISCAL YEAR; THE NORTHERN MINER JOURNAL, DEC. 24, 1990

  • Deposit

    P6.

  • Deposit

    CANADIAN MINES HANDBOOK 1989-90; NORTHERN MINER PRESS,

  • Deposit

    ONTARIO, CANADA, P448.

  • Deposit

    CANADIAN MINES HANDBOOK 1990-91; NORTHERN MINER PRESS,

  • Deposit

    ONTARIO, CANADA, P145.

  • Deposit

    MINERAL POLICY SECTOR, DEPT. OF ENERGY, MINES AND RESOUCES,

  • Deposit

    OTTAWA, MINERAL PROPERTY FILE NO. 509267. 3 PAGES.

  • Deposit

    MINISTRY OF ENERGY, MINES AND PETROLEUM RESOURCES

  • Deposit

    MINERAL RESOURCES DIVISION-GEOLOGICAL SURVEY BRANCH

  • Deposit

    MINFILE REPORT NO. 082FNW050. 2 PAGES.

  • Deposit

    COMPANY PROPRIETARY QUESTIONARE, FROM STEVE PHILLIPS

  • Deposit

    TREMINCO RESOURCES MINE MANAGER, TO KEN PORTER OF THE

  • Deposit

    U.S. BUREAU OF MINES-MAFO, JULY 10,1990, 7 PAGES.

  • Deposit

    BEAUDOIN, G., SANGSTER, D.F., PRELIMINARY REPORT ON THE

  • Deposit

    SILVANA MINE AND OTHER AG-PB-ZN VEIN DEPOSITS,

  • Deposit

    NORTHERN KOKANEE RANGE, BRITISH COLUMBIA GEOLOGICAL

  • Deposit

    SURVEY BRANCH, GEOLOGICAL FIELDWORK 1989, PAPER 1990-1,

  • Deposit

    P251-255.

  • Deposit

    ANONYMOUS, EXPLORATION THAT PUT SILVANA BACK TO WORK A

  • Deposit

    DICKENSON HIGHLIGHT; THE NORTHERN MINER, MARCH 7, 1985.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-JUL-1991 Peterson, Gary R. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site