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Equity Silver

Plant in British Columbia, Canada with commodities Antimony, Copper, Gold, Silver
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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 10118336
MAS/MILS ID 1220100022
Record type Site
Current site name Equity Silver
Alternate or previous names Sam Goosly Claims, Main Zone, Southern Tail Pit, The Equity Mine, Waterline Zone

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -126.26265, 54.1887 (WGS84)
Elevation 1250

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Antimony Critical Secondary
Copper Primary
Gold Secondary
Silver Primary

Materials information

Materials Type of material
Argentite Unknown
Arsenopyrite Unknown
Chalcopyrite Unknown
Dumortierite Unknown
Fluorite Unknown
Galena Unknown
Gold Unknown
Hematite Unknown
Magnetite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Scorzalite Unknown
Sericite Unknown
Sphalerite Unknown
Tetrahedrite Unknown
Tourmaline Unknown

Nearby scientific data

Ore Body (1) -126.26265, 54.1887
ListMap

Economic information

Ore body information

  • Strike N15E
    Dip 45W
    Thickness 50M
    Length 700M
    Width 90M
    Area 32HA
    Depth to top 4M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 STRATABOUND
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control IGNEOUS
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 POTASSIC
    Strike And Dip N15E:45W
    Avg. Thick. Unconsol. Mat. 4
    Total Surface Area (HA) 32
    Date of Last Modification 910715
  • Strike N15E
    Dip 45W
    Length 200M
    Width 12M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 STRATABOUND
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control IGNEOUS
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 POTASSIC
    Strike And Dip N15E:45W
    Date of Last Modification 910715

Comments on the geologic information

  • THE MINERALS LISTED FOR MATRIX 1 (MAIN ZONE) ARE APPLICABLE TO THE WATERLINE ZONE ALSO AND THEREFORE ARE NOT LISTED TWICE TO AVOID REDUNDANCY.

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant No
Discovery year 1967
Mining method Open Pit
Year of first production 1980
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Coast, Range 5

Mineral rights holdings

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

Ownership information

  • Type Owner-Operator
    Owner Equity Silver Mines, Ltd.
    Interest 41.2
    Home office Canada
    Year 1990
  • Type Owner
    Owner Placer Dome, Inc.
    Interest 58.8
    Home office Canada
    Year 1990

Comments on the ownership information

  • PLACER-DOME OWNS 70% OF EQUITY SILVER MINES.

Production statistics

  • Year 1980
    Ore mined 448000
    Description 448000 Mt Ore/Yr
  • Year 1981
    Ore mined 1910000
    Description 1910000 Mt Ore/Yr
  • Year 1982
    Ore mined 2073000
    Description 2073000 Mt Ore/Yr
  • Year 1983
    Ore mined 2180000
    Description 2180000 Mt Ore/Yr
  • Year 1984
    Ore mined 2090000
    Description 2090000 Mt Ore/Yr
  • Year 1985
    Ore mined 2058000
    Description 2058000 Mt Ore/Yr
  • Year 1993
    Ore mined 422000
    Description 144/9 G Ag, 2/9 G Au, .58% Cu 422000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 1wt-pct
    Trace Gold Gold 92g/mt
    Major Silver Silver 4582g/mt

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Measured 5917000mt ore
    Demonstrated 5917000mt ore
    Total resources 5917000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 72 g/mt Silver Major 1990
    Copper Cu 0.22 wt-pct Copper Major 1990
    Gold Au 0.82 g/mt Gold Minor 1990
  • Type In-situ
    Estimate year 1989
    Measured 2590000mt ore
    Demonstrated 2590000mt ore
    Total resources 2590000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 76 g/mt Silver Major 1989
    Copper Cu 0.29 wt-pct Copper Major 1989
    Gold Au 1.2 g/mt Gold Minor 1989
  • Type In-situ
    Estimate year 1989
    Measured 2968000mt ore
    Demonstrated 2968000mt ore
    Total resources 2968000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 55 g/mt Silver Major 1989
    Copper Cu 0.2 wt-pct Copper Major 1989
    Gold Au 0.56 g/mt Gold Minor 1989
  • Type In-situ
    Estimate year 1993
    Demonstrated 316000mt ore
    Total resources 316000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 124.15 g/mt Silver Major 1993
    Gold Au 3.543 g/mt Gold Minor 1993
    Copper Cu 0.46 wt-pct Copper Major 1993

Comments on the reserve resource information

  • INT. MIN., 6/89, P48. (12/31/89) CMH 1990-91, P168. (12/31/89)

Workings at the site

  • Type of workings Surface
    Area 32HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Percent Waste Rock 68.9
    Avg. Overburden Thickness 4
    Primary Material Cover SAND, SILT
    Secondary Material Cover SAND, GRAVEL
    Hardness of Ore SAND, GRAVEL
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 60
    Capacity 8000
    Capacity Units MT ORE/DAY
    Unit Production Cost 3.05
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

    "EQUITY SILVER MINES CEASES OPERATIONS", SKILLINGS MINING

  • Deposit

    REVIEW, 5 MAR 94, P. 9.

  • Reserve-Resource

    WESTERN MINER, JULY 1980 PP. 19-22.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK 1986-87, NORTHERN MINER PRESS,P.142.

  • Reserve-Resource

    MINE RESERVES AND CURRENTLY PROMISING DEPOSITS, JAN. 1985,

  • Reserve-Resource

    EMR CANADA, MR 209, P. 22.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1991-92, P. 148.

  • Reserve-Resource

    "EQUITY SILVER LOOKS TO FUTURE", THE NORTHERN MINER,

  • Reserve-Resource

    10 MAY 93, P. 41.

  • Deposit

    NEY, CHARLES S., JHON M. ANDERSON AND ANDRE PANTELEYEV,

  • Deposit

    DISCOVERY, GEOLOGIC SETTING AND STYLE OF MINERALIZATION,

  • Deposit

    SAM GOOSLEY DEPOSIT, B.C.; CIM BULL., JULY, 1972, P.53-64

  • Deposit

    WATSON, BARRY N., LARGE LOW GRADE SILVER DEPOSITS IN N.

  • Deposit

    AMERICA; WORLD MINING, MARCH, 1977, P.44-50.

  • Deposit

    COTTER, N.P., SEEK NEW AGREEMENT ON SAM GOOSLY PROJECT;

  • Deposit

    NORTHERN MINER, APRIL 27, 1978, P.1, 12.

  • Deposit

    SKILLING'S, CONSTRUCTION AT SAM GOOSLY MINE ON SCHEDULE;

  • Deposit

    DEC.15, 1979, P.12.

  • Deposit

    PROPERTY EVALUATION REPORT ON EQUITY SILVER MINE CANADA;

  • Deposit

    PREPARED BY CHARLES RIVER ASSOCIATES, BOSTON MASS.,MAY 86.

  • Deposit

    ANDERSON, SCOTT, PLACER'S NON-GOLD CANADIAN MINES;

  • Deposit

    CANADIAN MINING JOURNAL, JUNE 1990, PP 39-40.

  • Deposit

    EQUITY SILVER MINES LIMITED, A DESCRIPTION OF OPERATIONS;

  • Deposit

    IN HOUSE REPORT PREPARED BY EQUITY SILVER MINES LTD.,

  • Deposit

    FOR THE YEAR 1990.

  • Deposit

    CANADIAN MINES HANDBOOK 1989-90, NORTHERN MINER PRESS, P164.

  • Deposit

    ANONYMOUS, EQUITY SILVER: THE CHALLENGES AND THE SOLUTIONS,

  • Deposit

    MINING MAGAZINE, JAN., 1988, PP 16-23.

  • Deposit

    ANNETT, MARGARET AND WILLIAM; BC MINING TRIUMPH, CANADIAN

  • Deposit

    MINING JOURNAL, SEPT. 1987, PP 11-13.

  • Deposit

    MARCHANT, P.B.; PRECIOUS METALS SCAVENGING AT EQUITY

  • Deposit

    SILVER MINES LIMITED, CIM BULLETIN, JUNE 1986, PP 53-61.

  • Deposit

    SORENSON, JEAN; CARBON IN LEACH CIRCUIT TO UP SILVER-GOLD

  • Deposit

    RECOVERY AT EQUITY, CANADIAN MINING JOURNAL, NOV. 1984,

  • Deposit

    PP 22-25.

  • Deposit

    EDWARDS, C.R.; THE EQUITY LEACH PLANT, CIM BULLETIN, DEC.

  • Deposit

    1985, PP 84-93.

  • Deposit

    ANONYMOUS; EQUITY SILVER: COMPLEX METALLURGY RESOLVED,

  • Deposit

    WESTERN MINER, AUG. 1981, PP 11-18.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-SEP-1994 Peterson, Gary R. U.S. Bureau of Mines

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Placer Dome, Inc. — acquired by Subsidiary of Barrick Gold (2006)
    Acquired by Barrick Gold in 2006.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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