Natividad Quarry & Mill

The Natividad Quarry & Mill is a magnesite mine located in Monterey county, California at an elevation of 259 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Natividad Quarry & Mill
Secondary: Permanente Metals Corp. Pit

Commodity

Primary: Magnesite
Tertiary: Limestone, General

Location

State: California
County: Monterey
District: Natividad

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Type: Patented

Workings

Type: Surface

Ownership

Owner Name: National Refractories
Percent: 100.0
Home Office: California
Info Year: 1986

Owner Name: Kaiser Aluminum And Chemical Corp.
Home Office: California

Owner Name: Permanente Metals Corp.
Home Office: California
Info Year: 1942

Production

Year: 1986
Description: 1,600,000 Mt Dolomite Mined 127429 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: 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: 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: 1982
Description: 5,801,657,000 Gal. Seawater Treated 7650 Mt Caustic Mgo Produced
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: 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: 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: 1982
Description: 785,000 Mt Dolomite Mined 59900 Mt Refractory Mgo Produc
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: 1986
Description: 9,689,080,000 Gal. Seawater Treated 18429 Mt Caustic Mgo Produced

Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Beneficiation (Mill)
Plant Subtype: Gravity
Operation Type: Surface
Mining Method: Unknown
Year First Production: 1942
Discovery Year: 1940
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Norbergite

Comments

Comment (Reserve-Resource): 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.

Comment (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).

References

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

Reference (Deposit): DESY, D. H. MINERAL COMMODITY SUMMARIES, 1981. IRON AND STEEL, 1980. BUMINES, PP. 78-79.

Reference (Deposit): ENVIRON. RECLAMATION PLAN FOR THE NATIVIDAD QUARRY OF KAISER REFRACTORIES. UNPUBLISHED, DECEMBER 1982.

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

Reference (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.

Reference (Deposit): HAVIGHORST, C. R. DOLOMITE PURIFICATION AND CALCINING, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, JULY 19, 1965.

Reference (Deposit): HAVIGHORST, C. R. MAGNESIA EXTRACTION FROM SEAWATER, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, AUG. 2, 1965.

Reference (Deposit): HAVIGHORST, C. R. THE MANUFACTURE OF BASIC REFRACTORIES, PROCESS FLOWSHEET. CHEMICAL ENGINEERING REPRINT, AUG. 16, 1965.

Reference (Deposit): KAISER REFRACTORIES. MOSS LANDING AREA PLANTS PROFILE. 1979, 5 PP.

Reference (Deposit): KAISER REFRACTORIES. TECHNICAL DATA, PRODUCT SPECIFICATION SHEETS.

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

Reference (Deposit): ANONYMOUS. KAISER REFRACTORIES, MOSS LANDING MAGNESIA MODERNIZATION PROGRAM. UNPUBLISHED, 1977, 8 PP.

Reference (Deposit): BETTS, H. KAISER REFRACTORIES EXPANDS AT NATIVIDAD, KAISER REFRACTORIES. MINERALS PROCESSING, V. 1X, NO. 4, NOVEMBER 1968.

Reference (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.

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

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

Reference (Deposit): U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1980.

Reference (Deposit): U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1979.

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

Reference (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.

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

Reference (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

Reference (Deposit): SHEPHERD, J. G., ENVIRONMENTAL ENGINEER, MAGNESIA OPERATIONS KAISER REFRACTORIES, PERSONAL COMMUNICATIONS, AUGUST 1983.

Reference (Deposit): TAELAR, D. H. DOLOMITE AT NATIVIDAD. MINERALS PROCESSING, V. 6, NO. 5, 1965, PP. 17-20.

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

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

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

Reference (Deposit): LOHSE, F. THE IDENT. OF SOME OF THE KAISER COMPANIES WITH THE CHEM. IND., A HISTORY. UNPUB. 10 PP.

Reference (Deposit): ROCK PRODUCTS. AGGREGATE PRICES, MARCH 1983, P. 17.

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

Reference (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

Reference (Deposit): U.S. BUREAU OF MINES. INDIVIDAL COMPANY PRODUCTION RECORDS, COMPANY PROPRIETARY DATA. UNPUBLISHED, 1978.

Reference (Deposit): U.S. BUREAU OF MINES. INDIVIDUAL COMPANY PRODUCTION COMPANY PROPRIETARY DATA. UNPUBLISHED, 1981.

California Gold

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.