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Edwards Mine

Past Producer in St. Lawrence county in New York, United States with commodities Zinc, Sulfur-Pyrite, Lead, Cadmium, Copper, Barium-Barite, Iron
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10074401
MRDS ID W020671
Record type Deposit
Current site name Edwards Mine
Alternate or previous names Edwards Zinc Mine, Edwards Concentrator

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -75.26706, 44.33092 (WGS84)
Elevation 220
Location accuracy 100(meters)
Relative position Location is equidistant from the three main shafts (#1, #2, and #3) that mine the Edwards ore bodies, just NW of the town of Edwards. #1 is 0.94 miles N09W of BM 687 SW of Edwards, NY. #2 is 1.1 miles N10W of BM 687. #3 is 1 mile N21W of BM 687.

Site location context

Political divisions (FIPS codes)

St. Lawrence(county)

New York(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Edwards(quadrangle 1:24,000 scale)

Gouverneur(quadrangle 1:100,000 scale)

Ogdensburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States New York St. Lawrence

Commodities

Commodity Importance
Zinc Critical Primary
Sulfur-Pyrite Secondary
Lead Secondary
Cadmium Secondary
Copper Tertiary
Barium-Barite Critical Tertiary
Iron Tertiary

Comments on the commodity information

  • Average dimensions of mineralization (in meters): depth = 492m, length = 16000 m, width = 3000 m, and thickness = 550 m.
  • Ore analyses: sphalerite = 19.4 wt%; galena = 1.3 wt%; pyrite = 18.5 wt%.

Materials information

Materials Type of material
Sphalerite Ore
Pyrite Ore
Galena Ore
Pyrrhotite Ore
Magnetite Ore
Hematite Ore
Barite Ore
Quartz Gangue
Diopside Gangue
Tremolite Gangue
Serpentine Gangue
Talc Gangue
Calcite Gangue
Dolomite Gangue
Anhydrite Gangue
Chlorite Gangue
Ilvaite Gangue
Garnet Gangue
Phlogopite Gangue

Alteration

  • (Local) Dolomitization; Silicification

Analytical data

Result SPHALERITE 19.4 WT%, GALENA 1.3 WT%, PYRITE 18.5 WT%

Mineral occurrence model information

Model code 208
USGS model code 31a
Deposit model name Sedimentary exhalative Zn-Pb
Mark3 model number 13

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
    Rock unit name Upper Marble Formation
    Rock description Upper Marble Formation
    Stratigraphic age (youngest) Proterozoic

Nearby scientific data

Centroid (1) -75.26706, 44.33092
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Folds

Ore body information

  • General form lenticular, tabular, pod
    Strike N50E
    Dip 45W
    Thickness 550M
    Length 16000M
    Width 3000M
    Area 80HA
    Depth to top 492M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 SHEAR ZONE
    Shape of Orebody #3 OTHER
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FOLDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N50E:45W
    Avg. Thick. Unconsol. Mat. 30
    Total Surface Area (HA) 80
    Date of Last Modification 830407

Controls for ore emplacement

  • Folding, Lithology

Comments on the geologic information

  • Proterozoic rocks of the Balmat-Edwards district are part of the Grenville Supergroup. Host rocks are dolomitic and calcitic marbles.
  • Rock characterization: serpentine = trace; talc = 6.5 wt%; chlorite = 1.5 wt%; ilavite = 1.0 wt%; garnet = 0.4 wt%; phlogopite = 2.0 wt%.
  • MODE OF ORIGIN: REMOBILIZATION OF ORE MINERALS OCCURRED DURING METAMORPHISM.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Large
Significant Yes
Discovery year 1903
Mining method Shrinkage Methods
Year of first production 1915
Year of last production 1980
Milling method Flotation

Mining district

District name Balmat - Edwards District

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Private Lease

Ownership information

  • Type Owner-Operator
    Owner St. Joe Zinc Co.
  • Type Owner-Operator
    Owner Zinc Corp. Of America
    ID 3000592
    Interest 100
    Home office P. O. Box 2266, Hailesboro, Ny 13645
    Year 1993

Production statistics

  • Year 1926
    Period 1915-1926
    Material zinc ore
    Ore mined 500000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major zinc Zinc Zinc 17wt-pct
  • Year 1926
    Period 1915-1926
    Material zinc concentrate
    Ore mined 140000mt
  • Year 1980
    Period 1926-1980
    Material zinc ore
    Ore mined 6000000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major zinc Zinc Zinc 10wt-pct
  • Year 1980
    Period 1926-1980
    Material zinc concentrate
    Ore mined 1000000mt
  • Year 1980
    Period 1915-1980
    Material zinc ore
    Ore mined 6500000mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major zinc Zinc Zinc 11wt-pct

Workings at the site

  • Type of workings Underground
    Length 22860M
    Overall depth 381M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OTHER SHRINKAGE METHODS
    Swell Factor .6
    Percent Waste Rock 0
    Percent Recovery 80
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Length of Inclines (m) 1130
    Slope of Inclines 42
    Number of Inclines 1
    1st Condition of Workings OPEN
    2nd Condition of Workings PART ACCESSIBLE
    Capacity 363
    Capacity Units MT ORE/DAY
    Unit Production Cost 17.96
    Units of Production $/MT ORE
    Operating Days per Year 252
    Operating Shifts per Day 2
    Year of Information 1976

Comments on the workings information

  • MINING METHOD IS UPHILL UNDERHAND SHRINKAGE STOPING.

Comments on development

  • MSHA DATA LIST PROPERTY AS "SHUTDOWN" AS OF 1/81.

Reference information

Bibliographic references

  • Deposit

    LUEDKE, E.M., WRUCKE, C.T., AND GRAHAM, J.A., 1959, MINERAL OCCURRENCES OF NEW YORK STATE WITH SELECTED REFERENCES TO EACH LOCALITY: UNITED STATES GEOLOGICAL SURVEY BULLETIN 1072-F, P 441.

  • Deposit

    Foose, M.P., 1979, A reinterpretation of the structural and stratigraphic setting of the Balmat-Edwards zinc deposits, northwest Adirondack lowlands, New York: Economic Geology, Scientific Communications, September, 1979, pp. 130-133.

  • Deposit

    LEA, E.R., AND DILL, D.B., JR., 1968, ZINC DEPOSITS OF THE BALMAT-EDWARDS DISTRICT, NEW YORK: IN RIDGE, J.D., ED., ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOLUME) V. 1: AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, P. 20-48.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 'MODERN PLANT AIDES ST. JOE PROCESSING OF ELUSIVE BALMAT ORES:' NOV. 1976.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 'ST. JOE MINERALS: GROWING THROUGH DIVERSIFICATION:' NOV. 1976, PP. 69-124.

  • Deposit

    ST. JOE MINERALS CORPORATION'S NEW FACILITIES AT BALMAT, NEW YORK--OPENING DAY CEREMONIES. 1971, 12 PP.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1975 no name U.S. Bureau of Mines
Reporter 01-JAN-1985 Nyahay, Richard E. New York State Geological Survey
Reporter 05-APR-1993 Drescher, Theodore A. U.S. Bureau of Mines
Editor 19-NOV-2003 Woodruff, Laurel G. U.S. Geological Survey Work done in Filemaker
Editor 25-MAR-2010 Schruben, Paul U.S. Geological Survey Consolidated duplicate records.

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 01/26/1981
MSHA mine ID3000592
Mine name (MSHA)Edwards Mine And Mill
Current operatorSt Joe Resources Company
Current controller (parent)Fluor Corp
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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