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  3. Mineral Resource Data System (MRDS)

Florence Mac

Past Producer in San Benito county in California, United States with commodity Mercury
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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. Alteration
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10040918
MRDS ID M055804
Record type Site
Current site name Florence Mac

Geographic coordinates

Geographic coordinates: -120.6821, 36.31328 (WGS84)
Elevation 914
Relative position 27 MI NW OF COALINGA

Site location context

Political divisions (FIPS codes)

San Benito(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Benito Mountain(quadrangle 1:24,000 scale)

Coalinga(quadrangle 1:100,000 scale)

Monterey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pajaro(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California San Benito

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 018S 012E 32 California

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Induration Of Panoche Sediments

Nearby scientific data

(1) -120.6821, 36.31328
ListMap

Economic information

Controls for ore emplacement

  • Nw Trending - Sw Dipping Fault Between Panoche Shale And Sandstone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1904
Production years 1910, 1913 - 1914, 1916, 1925, 1927, 1930 - 1933, 1935 - 1939, 1940 - 1942, 1957 - 1959

Mining district

District name New Idria

Ownership information

  • Type Owner
    Owner Norman Scazighini

Production statistics

  • Year 1960
    Period Thru 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^4-10 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 3162g/mt

Workings at the site

  • Type of workings Unknown
    Length 274.32M

Comments on the workings information

  • WORKINGS INACCESSIBLE

Reference information

Bibliographic references

  • Deposit

    ECKEL, E. B. AND MYERS, W. B., 1946, QUICKSILVER DEPOSITS OF THE NEW IDRIA DISTRICT, SAN BENITO AND FRESNO COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 81 - 124

  • Deposit

    BAILEY, E. H., U.S.G.S., PERSONAL FILES

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

  • Deposit

    AVERILL, C.V., 1947, MINES AND MINERAL RESOURCES OF SAN BENITO COUNTY, CALIF.: CJMG, V. 43, P. 41-60

  • Deposit

    5) BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    6) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486

  • Production

    USBM DATA

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

External references

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.