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Natividad Quarry & Mill

Plant in Monterey county in California, United States with commodities Magnesite, Limestone, General
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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. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10286085
MRDS ID W024273
MAS/MILS ID 0060530155
Record type Site
Current site name Natividad Quarry & Mill
Alternate or previous names Permanente Metals Corp. Pit
Related records 10076943

Geographic coordinates

Point of reference Pit
Geographic coordinates: -121.60412, 36.74963 (WGS84)
Elevation 79
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Monterey(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Natividad(quadrangle 1:24,000 scale)

Monterey(quadrangle 1:100,000 scale)

Monterey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Monterey

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 014 S 003 E 02 NENWNE California

Commodities

Commodity Importance
Magnesite Primary
Limestone, General Tertiary

Materials information

Materials Type of material
Norbergite Unknown

Economic information

Ore body information

  • Strike N60W
    Dip 45E
    Thickness 250M
    Length 1500M
    Width 1500M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Strike And Dip N60W:45E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830826
  • Area 450HA
    Field Value
    Total Surface Area (HA) 450
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Both
Significant No
Discovery year 1940
Year of first production 1942
Plant type Beneficiation (Mill)
Plant subcategory Gravity

Mining district

District name Natividad

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Permanente Metals Corp.
    Home office California
    Year 1942
  • Type Owner-Operator
    Owner Kaiser Aluminum And Chemical Corp.
    Home office California
  • Type Owner-Operator
    Owner National Refractories
    Interest 100
    Home office California
    Year 1986

Production statistics

  • Year 1978
    Description 10,118,384,000 Gal. Seqwater Treated 29320 Mt Caustic Mgo Produced
  • Year 1978
    Description 1,600,000 Mt Dolomite Mined 138100 Mt Refractory Mgo Produc.
  • Year 1979
    Description 10,138,399,000 Gal. Seawater Treated 32250 Mt Caustic Mgo Produced
  • Year 1979
    Description 1,600,000 Mt Dolomite Mined 144740 Mt Refractory Mgo Produc.
  • Year 1980
    Description 10,046,808,000 Gal. Seawater Treated 28270 Mt Caustic Mgo Produced
  • Year 1980
    Description 1,600,000 Mt Dolomite Mined 138860 Mt Refractory Mgo Produc.
  • Year 1981
    Description 7,697,135,000 Gal. Seawater Treated 15850 Mt Caustic Mgo Produced
  • Year 1981
    Description 900,000 Mt Dolomite Mined 98410 Mt Refractory Mgo Produc
  • Year 1982
    Description 5,801,657,000 Gal. Seawater Treated 7650 Mt Caustic Mgo Produced
  • Year 1982
    Description 785,000 Mt Dolomite Mined 59900 Mt Refractory Mgo Produc
  • Year 1983
    Description 7,570,100,000 Gal Seawater Treated 14670 Mt Caustic Mgo Produced
  • Year 1983
    Description 1,059,752 Mt Dolomite Mined 74170 Mt Refractory Mgo Produc
  • Year 1984
    Description 7,338,300,000 Gal. Seawater Treated 12020 Mt Caustic Mgo Produced
  • Year 1984
    Description 1,185,732 Mt Dolomite Mined 86530 Mt Refractory Mgo Produc
  • Year 1985
    Description 5,904,500,000 Gal. Seawater Treated 17020 Mt Caustic Mgo Produced
  • Year 1985
    Description 1,185,615 Mt Dolomite Mined 71860 Mt Refractory Mgo Produc
  • Year 1986
    Description 1,600,000 Mt Dolomite Mined 127429 Mt Refractory Mgo Produc
  • Year 1986
    Description 9,689,080,000 Gal. Seawater Treated 18429 Mt Caustic Mgo Produced

Comments on the reserve resource information

  • MATRIX 1 COLUMN 1 REPRESENTS THE TOTAL IN SITU MATERIAL INCLUDING WASTE WHICH IS MINED SEPARATELY IN MINE PRACTICE. MATRIX 1 COLUMN 2 REPRESENTS THE TOTAL IN SITU MATERIAL WHICH IS MINED ROM AND DELIVERED TO THE PRIMARY CRUSHER. MATRIX 1 COLUMN 3 REPRESENTS THE TOTAL IN SITU DOLOMITE THAT WILL BE RECOVERED THROUGH THE HEAVY MEDIA CIRCUIT.

Workings at the site

  • Type of workings Surface
    Area 400HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method QUARRY
    Percent Waste Rock 6.2
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 60
    Capacity 6000
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 1.89
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1983

Reference information

Bibliographic references

  • Deposit

    ALLEN, J. E. GEOLOGY OF THE SAN JUAN BAUTISTA QUADRANGLE, CALIFORNIA. CALIFORNIA DIV. OF MINES BULL. 133, 1946, 75PP.

  • Deposit

    ANONYMOUS. KAISER REFRACTORIES, MOSS LANDING MAGNESIA MODERNIZATION PROGRAM. UNPUBLISHED, 1977, 8 PP.

  • Deposit

    BETTS, H. KAISER REFRACTORIES EXPANDS AT NATIVIDAD, KAISER REFRACTORIES. MINERALS PROCESSING, V. 1X, NO. 4, NOVEMBER 1968.

  • Deposit

    BOWEN, O. E. JR., AND C. H. GRAY JR., GEOLOGY AND ECONOMIC POSSIBILITIES OF THE LIMESTONE AND DOLOMITE DEPOSITS OF THE NORTHERN GABILAN RANGE, CALIFORNIA. CALIFORNIA DIV. MINES SPECIAL REPORT 56, 1959, 40 PP.

  • Deposit

    BYRNS, A. C. INTEGRATED BASIC REFRACTORIES OPERATIONS IN CALIFORNIA. CHEMICAL ENGINEERING, MAY 1950, PP. 152-155, 200-203.

  • Deposit

    CERAMIC NEWS. EXPANDED FACILITIES AT "REFRACTORIES FROM SEAWATER" PLANT OF KAISER CHEMICALS. OCTOBER 1957, PP.48-49

  • Deposit

    DESY, D. H. MINERAL COMMODITY SUMMARIES, 1981. IRON AND STEEL, 1980. BUMINES, PP. 78-79.

  • Deposit

    ENVIRON. RECLAMATION PLAN FOR THE NATIVIDAD QUARRY OF KAISER REFRACTORIES. UNPUBLISHED, DECEMBER 1982.

  • Deposit

    FORBATH, T. P. MAGNESIA FROM SEA VIA STREAMLINED PROCESS. CHEMICAL ENG., NO. 6, MAR. 24, 1958, PP. 112-115

  • Deposit

    HART, E. W. MINES AND MINERAL RESOURCES OF MONTEREY COUNTY, CALIFORNIA. CALIFORNIA DIVC. OF MINES AND GEOL. COUNTY REPORT NO. 5, 1966, PP. 55-59, 67-71.

  • Deposit

    HAVIGHORST, C. R. DOLOMITE PURIFICATION AND CALCINING, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, JULY 19, 1965.

  • Deposit

    HAVIGHORST, C. R. MAGNESIA EXTRACTION FROM SEAWATER, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, AUG. 2, 1965.

  • Deposit

    HAVIGHORST, C. R. THE MANUFACTURE OF BASIC REFRACTORIES, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, AUG. 16, 1965.

  • Deposit

    KAISER REFRACTORIES. MOSS LANDING AREA PLANTS PROFILE. 1979, 5 PP.

  • Deposit

    KAISER REFRACTORIES. TECHNICAL DATA, PRODUCT SPECIFICATION SHEETS.

  • Deposit

    KAPILOFF. ASSEMBLY BILL NO. 2752, AIR POLLUTION: ACID DEPOSITION, CHAP. 1473. 1982, 6 PP.

  • Deposit

    LENHART, W. B. HEAVY MEDIA SEPARATION-REMOVES FRIABLE GRANITE FROM DOLOMITE. ROCK PRODUCTS, FEBRUARY 1953, PP. 89-93, 152, 154.

  • Deposit

    LOGAN, C. A. LIMESTONE IN CALIFORNIA. CALIFORNIA JOURNAL OF MINES AND GEOL., V. 43, 1947, PP. 175-357.

  • Deposit

    LOHSE, F. THE IDENT. OF SOME OF THE KAISER COMPANIES WITH THE CHEM. IND., A HISTORY. UNPUB. 10 PP.

  • Deposit

    ROCK PRODUCTS. AGGREGATE PRICES, MARCH 1983, P. 17.

  • Deposit

    SCHOTTMAN, F. J. U. S. BUREAU OF MINES, MINERAL COMMODITY SUMMARIES, 1982, IRON AND STEEL, 1981, PP. 78-79.

  • Deposit

    SCHOTTMAN, F. J. U. S. BUREAU OF MINES, MINERAL COMMODITY SUMMARIES, 1983, IRON AND STEEL, 1982, PP. 78-79.

  • Deposit

    SHEPHERD, J. G., ENVIRONMENTAL ENGINEER, MAGNESIA OPERATIONS KAISER REFRACTORIES, PERSONAL COMMUNICATIONS, AUGUST 1983.

  • Deposit

    TAELAR, D. H. DOLOMITE AT NATIVIDAD. MINERALS PROCESSING, V. 6, NO. 5, 1965, PP. 17-20.

  • Deposit

    TROFFEY, A. KAISER ALUMINUM AND CHEMICAL CORPORATION, INTER-OFFICE MEMORANDUM ON HISTORY OF CHEMICAL DIVISION OF KAISER ALUMINUM AND CHEMICAL CORPORATION, OCT. 19, 1953, 6 P

  • Deposit

    U.S. BUREAU OF MINES. INDIVIDAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1978.

  • Deposit

    U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION COMPANY PROPRIETARY DATA. UNPUBLISHED, 1981.

  • Deposit

    U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1980.

  • Deposit

    U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1979.

  • Deposit

    UTLEY, H. F. BASIC REFRACTORIES PLANT AT KAISER CHEMICAL DIVISION, PIT AND QUARRY. APRIL 1959, PP. 84-85.

  • Deposit

    UTLEY, H. F. HEAVY MEDIA SEPARATION PLANT SOLVES PROBLEM OF UPGRADING DOLOMITE AT KAISER OPERATION, PIT, AND QUARRY. NOVEMBER 1952. PP. 94-96, 98, 101.

  • Deposit

    VER PLANK, W. E. MAGNESIUM AND MAGNESIUM COMPOUNDS. CALIFORNIA DIV. OF MINES BULL. 176, 1957, PP. 313-323.

  • Deposit

    WETZEL, N. U. S. BUREAU OF MINES, MAS PROPERTY EVALUATION FILE REPORT MAGNESIUM COMPOUNDS, KAISER ALUMINUM AND CHEMICAL CORPORATION REFRACTORIES DIVISION MOSS LANDING AND NATIVIDAD FACILITIES, MONTEREY CO., CALIFORNIA. APRIL 1983

General comments

Subject category Comment text
Deposit MILL RECORD, PRODUCT RECORD, FEED RECORD, YIELDS RECORD DO NOT ADEQUATELY DESCRIBE PROCESS, COSTS, AND RECOVERIES, PLEASE REFER TO MAS DEPOSIT EVALUATION FOR MORE DETAILS. THIS SITE SUPPLIES CRUSHED ROCK TO THE NATIVIDAD CALCINING PLANT (SEQ. 0060539004).

Reporter information

Type Date Name Affiliation Comment
Reporter 07-AUG-1992 Wetzel, Nicholas U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.