San Marcos Is.

Plant in Baja California Sur, Mexico with commodity Gypsum-Anhydrite
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Mineral rights holdings
  10. Land status
  11. Ownership information
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10181736
MAS/MILS ID 2010050017
Record type Site
Current site name San Marcos Is.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.08398, 27.08357 (WGS84)
Elevation 200
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Baja California Sur

Commodities

Commodity Importance
Gypsum-Anhydrite Primary

Nearby scientific data

Ore Body (1) -112.08398, 27.08357

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Non-metallic
Significant No
Plant type Beneficiation (Mill)
Plant subcategory Crush

Mining district

District name San Marcos Is

Mineral rights holdings

Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Compania Occidental Mexicana, S. A.
    Interest 100
    Home office Mexico
    Year 1993
    First year 1993
    Last year 1993
  • Type Owner
    Owner Domtar Ltd. Canada
    Interest 49
    Home office Canada
    Year 1993
    First year 1993
    Last year 1993

Comments on the ownership information

  • DOMTAR LTD OF CANADA OWNS 49% OF COMPANIA OCCIDENTAL MEXICANA, S.A.; THE PRINCIPAL OWNER-OPERATOR OF THIS MINE.

Production statistics

  • Year 1993
    Description Gypsum Ore Product 2000000 St/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gypsum-Anhydrite Gypsum-Anhydrite 2204622mt

Reference information

Bibliographic references

  • Deposit

    MEXICO, OPPORTUNITIES IN INDUSTRIAL MINERALS; BY A. ALATORRE

  • Deposit

    P. HARBEN, H. MCVEY, K. SANTINI, 29TH FORUM ON THE GEOLOGY

  • Deposit

    OF INDUSTRIAL MINERALS, LONG BEACH CA., APRIL 25-30, 1993.

  • Deposit

    PAGES, 30-31.

General comments

Subject category Comment text
Deposit NEW ADDITTION TO THE MAS DATABASE: LAT/LONG APPROX FOR SAN MARCOS ISLAND, BAJA CALIFORNIA SUR, MEXICO. SEE BIBLIOGRAPHY FOR SOURCE. BENEFICATION METHOD APPROXIMATE GUESS.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-JUN-94 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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