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  3. Mineral Resource Data System (MRDS)

Hard Rock

Past Producer in Marion county in Florida, United States with commodities Phosphorus-Phosphates, Uranium, Fluorine-Fluorite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10264682
MAS/MILS ID 0120830016
Record type Site
Current site name Hard Rock
Alternate or previous names T/A Minerals Hardrock Deposit

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -82.41796, 28.96717 (WGS84)
Elevation 35

Site location context

Political divisions (FIPS codes)

Citrus(county)

Florida(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Holder(quadrangle 1:24,000 scale)

Inverness(quadrangle 1:100,000 scale)

Tarpon Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Withlacoochee(hydrologic unit)

Tampa Bay(hydrologic accounting unit)

Peace-Tampa Bay(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States Florida Marion

Public Land Survey System information

Meridian Township Range Section Fraction State
Tallahassee 017 S 019 E 30 SESESE Florida

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Uranium Tertiary
Fluorine-Fluorite Critical Tertiary

Materials information

Materials Type of material
Collophane Ore
Dolomite Gangue
Montmorillonite Gangue
Quartz Gangue

Nearby scientific data

Ore Body (1) -82.41796, 28.96717
ListMap

Economic information

Ore body information

  • Thickness 7.6M
    Length 1440M
    Width 1440M
    Area 231HA
    Depth to top 10.3M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 105
    Date of Last Modification 820616

Comments on the geologic information

  • PRECISE DRY INSITU DENSITY =1.23;ASSUME 20% MOISTURE.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Significant Yes
Discovery year 1915
Mining method Strip-Level
Year of first production 1930
Milling method Sizing

Mining district

District name North Florida

Mineral rights holdings

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

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Manco, Inc.
    Home office Florida
    Year 1978
  • Type Unknown
    Owner E. H. Kellogg Co.
    Home office Florida
    Year 1978
  • Type Unknown
    Owner Howard Phosphate Co., Inc.
    Home office Florida
    Year 1978
  • Type Unknown
    Owner Loncala Phosphate Co.
    Home office Florida
    Year 1978
  • Type Unknown
    Owner Sun Phosphate Co.
    Home office Florida
    Year 1978
  • Type Unknown
    Owner Thomas Jordan
    Home office Florida
    Year 1978

Comments on the ownership information

  • OWNERS: E.H. KELLOG CO., HOWARD PHOSPHATE CO., LONCALA PHOSPHATE CO., SUN PHOSPHATE CO., AND ANCO INC.

Comments on the production information

  • Precise mill recovery including slurry losses = 94.4%.

Comments on the reserve resource information

  • THERE ARE NO COMPANY PLANS TO DEVELOP THIS PROPERTY AT THIS TIME. NO COMPANY WAS AVAILABLE TO PROVIDE UPDATED INFORMATION. THE ZWI DATA FOR THIS PROPERTY LACKED SUBSTANTIATING INFORMATION BUT IS ALL THAT IS AVAILABLE. ZWI-EFOC INFORMATION WHICH REMAINS IN THE DATA BASE ONLY FOR HISTORICAL PERSPECTIVE.

Workings at the site

  • Type of workings Surface
    Area 105HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method STRIP-LEVEL
    Swell Factor .91
    Percent Waste Rock 0
    Avg. Overburden Thickness 0
    Primary Material Cover QUICKSAND
    Percentage 100
    Hardness of Ore QUICKSAND
    Avg. Bench Height (meters) 0
    Max. Pit Slope (degrees) 0
    Capacity 272
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 5.74
    Units of Production $/MT ORE
    Operating Days per Year 100
    Operating Shifts per Day 1
    Year of Information 1978

Comments on the workings information

  • AREA IS MINABLE. TOTAL AREA IS 1214 HA.

Comments on other economic factors

  • DEPOSITS ARE EXPOSED AT SURFACE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit CONTRACT, J0377000. ZELLARS-WILLIAMS INC. FLA. PHOSPHATE PROJECT EFFECTIVE DATE JUNE 30,1977. DIMENSIONS ARE IDEALIZED FOR MINABLE AREA.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAR-95 Forth, M. U.S. Bureau of Mines
Updater 15-NOV-10 Causey, J. Douglas U.S. Geological Survey
Reporter 06-MAR-95 \nWeaver, M.A. 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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