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Mirabel Mine

Past Producer in Lake 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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10040796
MRDS ID M055669
MAS/MILS ID 60330053
Record type Site
Current site name Mirabel Mine
Alternate or previous names Mirabel, Bradford, Great Eastern

Geographic coordinates

Point of reference Trench
Geographic coordinates: -122.60111, 38.7 (WGS84)
Elevation 381
Location accuracy 10(meters)
Relative position 4 MI S OF MIDDLETOWN. Prospect pit labeled on topo west of highway.

Site location context

Political divisions (FIPS codes)

Lake(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Detert Reservoir(quadrangle 1:24,000 scale)

Healdsburg(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Lake

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N 007W 23 SWSWNE California

Comments on the location information

  • Also in sections 14 and 22.

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Mercury Ore
Metacinnabar Ore
Chalcedony Gangue
Dolomite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine, Kaolinization Of Sediments

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock

Nearby scientific data

Trench (1) -122.60111, 38.7
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Mayacmas Anticline Trending Nw
Type of structure Local
Structure description Local Fractures, Serpentine - Sediment Contact

Ore body information

  • General form TABULAR, PIPES
    Strike N 30 W
    Dip SW
    Thickness 6.1M
    Length 73.15M
    Width 60.96M

Controls for ore emplacement

  • Lithologic Contacts, Local Fracturing.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1875
Year of first production 1887

Mining district

District name East Mayacmas

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Mirabel Quicksilver Co.

Production statistics

  • Year 1960
    Period To 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^10 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 4518g/mt

Comments on the production information

  • PRODUCTION DATES: 1877 - 1897, 1902 - 1903, 1915, 1928, 1930 - 1945

Workings at the site

  • Type of workings Underground
    Length 4419.6M
    Overall depth 152.4M

Comments on the workings information

  • 4TH LARGEST MINE IN THE DISTRICT, DIMENSIONS GIVEN ARE FOR LARGEST ORE BODY. MINE WORKINGS LARGELY INACCESSIBLE

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES

  • Deposit

    YATES, R. G. AND HILPERT, L. S., 1946, QUICKSILVER DEPOSITS OF THE EASTERN MAYACMAS DISTRICT, LAKE AND NAPA COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 231 - 286

  • Deposit

    AVERILL, C.V., 1947, MINES AND MINERAL RESOURCES OF LAKE COUNTY, CALIF.: CJMG, V. 43, no. 1, P. 15-38.

  • Deposit

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

  • Deposit

    RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-558

  • Deposit

    ROSS, C.P., 1940, QUICKSILVER DEPOSITS OF THE MAYACMAS AND SULFUR BANK DISTRICTS, CALIF.: USGS BULL. 922-B, P. 327-353

  • Production

    USBM DATA

General comments

Subject category Comment text
Deposit Discovery Year: 1870'S

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1983-11-04 Western Field Opeations Center (WFOC) U.S. Bureau of Mines 10139289 (=0060330053)
Editor 2010-11-08 Wilson, Anna B. U.S. Geological Survey 10139289 (=0060330053), merged and deleted.

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.