Rockland Mine

Plant in Polk county in Florida, United States with commodities Aluminum, Fluorine-Fluorite, Iron, Magnesite, Phosphorus-Phosphates, Uranium

Geologic information

Identification information

Deposit ID 10240937
MRDS ID ISM0372
MAS/MILS ID 0121050017
Record type Site
Current site name Rockland Mine
Related records 10024646

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -81.86675, 27.75421 (WGS84)
Elevation 50
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State County
United States Florida Polk

Public Land Survey System information

Meridian Township Range Section Fraction State
Tallahassee 031 S 024 E 25 E2NESE Florida

Commodities

Commodity Importance
Aluminum Tertiary
Fluorine-Fluorite Tertiary
Iron Tertiary
Magnesite Tertiary
Phosphorus-Phosphates Primary
Uranium Tertiary

Materials information

Materials Type of material
Collophane Unknown
Dolomite Unknown
Montmorillonite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -81.86675, 27.75421

Ore body information

  • Thickness 6.4M
    Depth to top 6.1M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 STRATABOUND
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Avg. Thick. Unconsol. Mat. 6.1
    Date of Last Modification 850521
  • Area 4756HA
    Field Value
    Total Surface Area (HA) 4756
    Date of Last Modification 910418

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Both metallic and non-metallic
Significant No
Discovery year 1920
Mining method Strip-Level
Year of first production 1968
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Central Florida Phosphate District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Sinochem, Usa, Chinese Government Fertilizer Trading Co.
    ID 800189
    Interest 100
    Home office Florida
    Year 1994

Production statistics

  • Year 1971
    Description 5944500 Mt Ore/Yr
  • Year 1973
    Description 7581600 Mt Ore/Yr
  • Year 1974
    Description 8443300 Mt Ore/Yr
  • Year 1975
    Description 8778900 Mt Ore/Yr
  • Year 1976
    Description 8438700 Mt Ore/Yr
  • Year 1977
    Description 6873200 Mt Ore/Yr
  • Year 1978
    Description 5565800 Mt Ore/Yr
  • Year 1979
    Description 7034000 Mt Ore/Yr
  • Year 1980
    Description 8307000 Mt Ore/Yr
  • Year 1981
    Description 7511000 Not Available
  • Year 1982
    Description 1755000 Closed In May
  • Year 1984
    Description 1995400 Mt Ore/Yr (Opened April)
  • Year 1985
    Description 5541800 Mt Ore/Yr
  • Year 1986
    Description 5631500 Mt Ore/Yr

Comments on the production information

  • PROPERTY PERMANENTLY CLOSED AS OF AUG 31, 1994.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0121050017
USGS Mineral Resources Data System MRDS ISM0372 MAS references MRDS
Mine Safety and Health Administration MSHA MSHA 0800189

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES. COMPILATION OF PROPRIETARY, INDIVIDUAL

  • Deposit

    COMPANY, PRODUCTION STATISTICS (FOR THE YEARS 1985 AND

  • Deposit

    1986).

  • Deposit

    ZELLAR-WILLIAMS, INC. EVALUATION OF THE PHOSPHATE

  • Deposit

    DEPOSITS OF FLORIDA USING THE MINERALS AVAILABILITY

  • Deposit

    SYSTEMS, BUMINES OPEN FILE REPORT 112-78,NTIS: PB 286-648/AS

  • Deposit

    1978, 199 PP.

  • Deposit

    DAMES AND MOORE. USS AGRI-CHEMICALS/FREEPORT PHOSPHATE ROCK

  • Deposit

    COMPANY, SOUTH ROCKLAND AREA, POLK AND HARDEE COUNTIES,

  • Deposit

    FLORIDA. DEVELOPMENT OF REGIONAL IMPACT APPLICATION FOR

  • Deposit

    DEVELOPMENT APPROVAL, MARCH 1981.

  • Deposit

    EARTH SCIENCES, INC. URANIFEROUS PHOSPHATE RESOURCES AND

  • Deposit

    TECHNOLOGY AND ECONOMICS OF URANIUM RECOVERY FROM

  • Deposit

    PHOSPHATE RESOURCES, UNITED STATES AND FREE WOULD, DEP.

  • Deposit

    ENERGY CONTRACT GJBX-110(79) V. 2, JUNE 1979, 672 PP.

  • Deposit

    WORLD PHOSPHATES, FERTECOM, ZELLARS-WILLIAMS, INC., SRI

  • Deposit

    INTERNATIONAL, 1981.

  • Deposit

    USS AGRI-CHEMICALS. PERSONAL COMMUNICATION DURING COMPANY

  • Deposit

    VISIT IN JANUARY 1985; AVAILABLE UPON REQUEST FROM

  • Deposit

    B.J. ROBERSON, BUMINES-EFOC, DENVER, CO.

Reporter information

Type Date Name Affiliation Comment
Reporter 05-APR-1995 Hite, Alan G. U.S. Bureau of Mines