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Lasher Project

Prospect in Livingston county in Kentucky, United States with commodities Fluorine-Fluorite, 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. 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 10291237
MAS/MILS ID 0211390045
Record type Site
Current site name Lasher Project
Alternate or previous names Lasher-Robinson, Robinson

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -88.38254, 37.26677 (WGS84)
Elevation 150
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Livingston(county)

Kentucky(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Golconda(quadrangle 1:24,000 scale)

Paducah(quadrangle 1:100,000 scale)

Paducah(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Ohio-Bay(hydrologic unit)

Lower Ohio(hydrologic accounting unit)

Lower Ohio(hydrologic subregion)

Ohio(hydrologic region)

Geographic areas

Country State County
United States Kentucky Livingston

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Zinc Critical Primary

Materials information

Materials Type of material
Calcite Unknown
Fluorite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -88.38254, 37.26677
ListMap

Economic information

Ore body information

  • Thickness 2M
    Length 300M
    Width 23M
    Area 2HA
    Depth to top 126M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control BEDDING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 69
    Total Surface Area (HA) 2
    Date of Last Modification 810929

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Both
Significant Yes
Discovery year 1970
Mining method Open Stope - Room and Pillar
Milling method Flotation

Mining district

District name Illinois-Kentucky Fluorspar District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Silverspar Minerals Inc., Vancouver, Canada
    Interest 100
    Home office Canada
    Year 1994

Comments on the ownership information

  • SILVERSPAR MINERALS LEASED PROPERTY FROM USX CORPORATION IN SEPT. 1, 1993.

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Measured 227000mt ore
    Demonstrated 227000mt ore
    Total resources 227000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 12.1999 wt-pct Zinc Major 1979
  • Type In-situ
    Estimate year 1979
    Indicated 68000mt ore
    Demonstrated 68000mt ore
    Total resources 68000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 9.1 wt-pct Zinc Major 1979
  • Type In-situ
    Estimate year 1979
    Inferred 68000mt ore
    Total resources 68000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 15 wt-pct Zinc Major 1979
  • Type In-situ
    Estimate year 1979
    Measured 150000mt ore
    Demonstrated 150000mt ore
    Total resources 150000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite F 36.2 wt-pct Fluorine Major 1979
  • Type In-situ
    Estimate year 1979
    Inferred 15000mt ore
    Total resources 15000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite F 30.9 wt-pct Fluorine Major 1979
  • Type In-situ
    Estimate year 1994
    Indicated 351000mt ore
    Demonstrated 351000mt ore
    Total resources 351000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 14 wt-pct Zinc Major 1994
  • Type In-situ
    Estimate year 1994
    Indicated 351000mt ore
    Demonstrated 351000mt ore
    Total resources 351000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 14 wt-pct Zinc Major 1994

Comments on the reserve resource information

  • RESERVES STATED IN SILVERSPAR MINERALS INC. 1993 ANN. REPT. P. 2. SILVERSPAR MINERALS LEASED PROPERTY FROM USX CORPORATION IN SEPT 1993. THIS DEPOSIT HAS PRODUCTION ACCESSED VIA A DECLINE AND DRIFTS IN ORE GRADE MATERIAL IN THE UPPER FLUORSPAR ZONE. THE LOWER ZINC HORIZON IS A STATABOUND DEPOSIT OPEN TO EXPANSION.
  • M1C1=RC1+RC2+RC3+RC4+RC5 M9C4=M1C1 MATRIX 1 COLUMN 1 IS A COMBINATION OF ALL RESERVE COLUMNS. TONNAGES ARE CUMULATED. GRADE IS THE WEIGHTED AVERAGE AT THE 75 PERCENT PROBABILITY LEVEL. MATRIX 9 COLUMN 4 EQUALS MATRIX 1 COLUMN 1. GRADES AT OTHER PROBABILITY LEVELS ARE: 14.4 PERCENT CAF2; 7.3 PERCENT ZINC - 90 PERCENT LEVEL 11.2 PERCENT CAF2; 8.3 PERCENT ZINC - 50,25,10 % LEVELS

Workings at the site

  • Type of workings Underground
    Overall depth 195M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ROOM AND PILLAR 10-34
    Percent Recovery 95
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    Length of Inclines (m) 355
    Number of Inclines 1
    1st Condition of Workings OPEN
    Capacity 450
    Capacity Units MT ORE/DAY
    Unit Production Cost 16.26
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1981

Comments on the workings information

  • TOTAL LAND HOLDING IS UNKNOWN.

Reference information

Bibliographic references

  • Reserve-Resource

    SILVERSPAR MINERALS INC 1993 ANNUAL REPORT. P. 2.

  • Deposit

    AMOS, D. H. GEOLOGIC MAP OF THE GOLCONDA QUADRANGLE,

  • Deposit

    KENTUCKY. U. S. GEOLOGICAL SURVEY, GEOLOGIC QUADRANGLE,

  • Deposit

    MAP GQ-546, 1966.

  • Deposit

    ENGINEERING AND MINING JOURNAL. INTERNATIONAL DIRECTORY OF

  • Deposit

    MINING AND MINERAL PROCESSING OPERATIONS. 1979, P. 188.

  • Deposit

    MONTGOMERY, G. FLUORSPAR: U. S. PRODUCERS HANG ON TO 30% OF

  • Deposit

    MARKET. ENG. AND MIN. J., V. 179, NO. 5, MARCH 1978,

  • Deposit

    PP. 92-98.

  • Deposit

    MOODIE, F. B., III, AND P. MCGRAIN. THE EAGLE-BABB-BARNES

  • Deposit

    FLUORSPAR PROJECT, CRITTENDEN COUNTY, KENTUCKY. PROC.

  • Deposit

    OF THE NINTH FORUM ON GEOLOGY OF INDUSTRIAL MINERALS,

  • Deposit

    KENTUCKY GEOLOGIC SURVEY AND ILLINOIS GEOLOGIC SURVEY,

  • Deposit

    PADUCAH, KENTUCKY, APRIL 26-28, 1973 (PUB. AS A

  • Deposit

    SYMPOSIUM ON THE GEOLOGY OF FLUORSPAR, ED. BY D. W.

  • Deposit

    HUTCHESON, 1974), PP. 96-107.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-MAR-1995 D R S U.S. Bureau of Mines

Beyond USGS

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

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