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Coy

Producer in Jefferson county in Tennessee, United States with commodities Lead, Limestone, General, Stone, Crushed/Broken, 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. Land status
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10129521
MAS/MILS ID 0470890003
Record type Site
Current site name Coy

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -83.48879, 36.12229 (WGS84)
Elevation 345
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Tennessee(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jefferson City(quadrangle 1:24,000 scale)

Morristown(quadrangle 1:100,000 scale)

Johnson City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Holston(hydrologic unit)

French Broad-Holston(hydrologic accounting unit)

Upper Tennessee(hydrologic subregion)

Tennessee(hydrologic region)

Geographic areas

Country State County
United States Tennessee Jefferson

Commodities

Commodity Importance
Lead Secondary
Limestone, General Tertiary
Stone, Crushed/Broken Tertiary
Zinc Critical Primary

Materials information

Materials Type of material
Calcite Unknown
Chalcopyrite Unknown
Chert Unknown
Dolomite Unknown
Fluorite Unknown
Galena Unknown
Jasper Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Main Entrance (1) -83.48879, 36.12229
ListMap

Economic information

Ore body information

  • Strike N60E
    Dip 20S
    Thickness 5M
    Area 2HA
    Field Value
    Type of Orebody #1 BRECCIA FILL
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 DOLOMITIZATION
    Type of Wallrock Alter. #2 SILICIFICATION
    Strike And Dip N60E:20S
    Avg. Thick. Unconsol. Mat. 2.5
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2
    Date of Last Modification 830510

Comments on the geologic information

  • COUNTRY ROCK IS CACO3;SO 100% OF MATERIAL IS MARKETABLE. PROPERTY UPDATED OCT 1987. SEE YOUNG, IMMEL, COY, NEW MARKET # 04708900005
  • THE OTHER TYPE OF DEFORMATION IS SOLUTION BRECCIA FORMATION.

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Both
Significant Yes
Discovery year 1953
Mining method Open Stope - Room and Pillar
Year of first production 1956
Milling method Flotation

Mining district

District name Mascot District

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Asarco (American Smelting And Refining Co.)
    ID 4000166
    Interest 100
    Home office New York
    Year 1977

Production statistics

  • Year 1972
    Description Crude Zinc Ore 97238 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 97238mt
  • Year 1973
    Description Crude Zinc Ore Mt Ore/Year
  • Year 1974
    Description Crude Zinc Ore 29444 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 29444mt
  • Year 1975
    Description Crude Zinc Ore 33746 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 33746mt
  • Year 1976
    Description Crude Zinc Ore 10846 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 10846mt
  • Year 1977
    Description Crude Zinc Ore 1388 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 1388mt
  • Year 1979
    Description 388 Mt Zn Produced 14550 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 388mt
  • Year 1980
    Description 2,766 Mt Zn Produced 78482 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 2766mt
  • Year 1981
    Description 6,089 Mt Zn Produced 171944 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 6089mt
  • Year 1982
    Description 5,597 Mt Zn Produced 178435 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 5597mt
  • Year 1983
    Description 6,554 Mt Zn Produced 187745 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 6554mt
  • Year 1984
    Description 5,896 Mt Zn Produced 190147 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 5896mt
  • Year 1985
    Description 3,567 Mt Zn Produced 101852 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 3567mt
  • Year 1986
    Description 6,541 Mt Zn Produced 175142 Mt Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 6541mt

Comments on the production information

  • ORE FEED GRADE IS 3.6 WT-PERCENT ZINC BECAUSE OF AN ASSUMED DILUTION OF 10 PERCENT. 1978 - 1986 PRODUCTION FROM BU MINES PRODUCTION STATISTICS
  • THE PRODUCT YIELD RECOVERIES ARE BASED UPON THE BLENDED FEED GRADE.

Comments on the reserve resource information

  • ORIGINAL RESERVE INFORMATION FROM HARDEMAN (REF. 019-020) RESERVES GIVEN BY ASARCO TENNESSEE DIVISION MINES

Workings at the site

  • Type of workings Underground
    Overall depth 250M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method ROOM AND PILLAR 10-34
    Percent Waste Rock 3.2
    Percent Recovery 80
    Hardness of Rock SOFT NONPLASTIC FISSURED EXCESSIVE 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
    1st Condition of Workings OPEN
    Capacity 910
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.15
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1976

Comments on the workings information

  • NAME OF MINING DISTRICT: MASCOT-JEFFERSON CITY ZINC DISTRICT

Comments on other economic factors

  • ACTUAL MILL RECOVERY FOR ZINC IS 97.9 PERCENT ACTUAL MILL RECOVERY FOR LIMESTONE BY-PRODUCTS IS 90.3 %

Reference information

Bibliographic references

  • Deposit

    1981 MSHA LIST

  • Deposit

    BRIDGE,J. STRATIGRAPHY OF THE MASCOT-JEFFERSON CITY ZINC DISTRICT, TENNESSEE. U.S. GEOL. SURVEY PROF. PAPER 277, 1956, P. 7 AND 61.

  • Deposit

    CLEMENT,G.K.,L. AVERY, AND P.A.SEIBERT. CAPITAL AND OPERATING COST ESTIMATING SYSTEM HANDBOOK. MINING AND BENEFICIATION OF METALLIC AND NONMETALLIC MINERALS EXCEPT FOSSIL FUELS IN THE UNITED STATES AND CANADA. NTIS: PB 277 348/AS. DECEMBER, 1977, 375 PP.

  • Deposit

    CRAWFORD,J., AND A.D. HOAGLAND. THE MASCOT-JEFFERSON CITY ZINC DISTRICT, TENNESSEE. ORE DEPOSITS OF THE UNITED STATES, 1933-1967, ED. BY J.D. RIDGE, AIME, V.1,1968, PP. 243-249.

  • Deposit

    ENGINEERING AND MINING JOURNAL. E & MJ INTERNATIONAL SURVEY OF UNDERGROUND MINES. JUNE, 1978, PP. 80-81.

  • Deposit

    HARDEMAN,W.D. ZINC AND COPPER MINES IN TENNESSEE. BUMINES OPEN FILE REPORT, 1970, P. 10.

  • Deposit

    HARRIS,L.D. KINKSPORT FORMATION AND MASCOT DOLOMITE (LOWER ORDOVICIAN) OF EAST TENNESSEE. PAPERS ON THE STRATIGRAPHY AND MINE GEOLOGY OF THE KINGSPORT AND MASCOT FORMATIONS (LOWER ORDOVICIAN) OF EAST TENNESSEE, TENNESSEE DIVISION OF GEOLOGY RI 23, 1969, PP. 7-8.

  • Deposit

    HATCHER, R.D., AND G.D. SWINGLE. MINERAL RESOURCES SUMMARY OF THE NEW MARKET QUADRANGLE, TENNESSEE, TENN. DIV. GEOLOGY MRS155-SE, 1973, P. 3.

  • Deposit

    LEAMON.A.R. MINE INVENTORY. TENNESSEE DIVISION OF GEOLOGY OPEN FILE REPORT, 1973, 2 PP.

  • Deposit

    LI,T.M. THE NEW LOOK AT ASARCO'S TENNESSEE MINES. MINING ENGINEERING, VOL. 28, NO.5, 1976, PP. 37-44.

  • Deposit

    MAHER,S.W. THE ZINC INDUSTRY OF TENNESSEE. TENNESSEE DIVISION OF GEOLOGY IC 6, 1958, P. 8.

  • Deposit

    MATHEWS,A.A., INC. MINE INTERVIEW REPORT, ASARCO YOUNG MINE AND MILL, MASCOT, TENNESSEE. PHASE 2 REPT., BUMINES MINERALS AVAILABILITY SYSTEM CONTRACT NO. JO255D26, VOL. I, 1976, 17 PP.

  • Deposit

    MCCORMICK,J.E., ET AT. GEOLOGY OF THE AMERICAN ZINC COMPANY'S YOUNG MINE. PAPERS ON THE STRATIGRAPHY AND MINE GEOLOGY OF THE KINGSPORT AND MASCOT FORMATIONS (LOWER ORDOVICIAN) OF EAST TENNESSEE. TENNESSEE DIV. GEOLOGY RI 23, 1969, PP. 45-49.

  • Deposit

    MILICI,R.C. THE STRATIGRAPHY OF KNOX COUNTY, TENNESSEE. CH. IN GEOLOGY OF KNOX COUNTY, TENNESSEE. TENNESSEE DIV. GEOLOGY BULL. 70, 1973, PP. 10-19.

  • Deposit

    RCF & CMS LISTS 10/81

Reporter information

Type Date Name Affiliation Comment
Reporter 31-OCT-97 Hrabik, J. U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusActive since 01/19/2007
MSHA mine ID4000166
Mine name (MSHA)Coy Mine
Current operatorCrucible ETN LLC
Current controller (parent)Korea Zinc Co Ltd
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.

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:

  • Asarco (American Smelting And Refining Co.) — acquired by Asarco LLC, subsidiary of Grupo México (2009)
    American Smelting and Refining Co. Filed Chapter 11 in 2005; acquired out of bankruptcy by Grupo México in 2009.

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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