1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Comstock

Past Producer in Santa Clara 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. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10103819
MRDS ID M055747
Record type Site
Current site name Comstock

Geographic coordinates

Geographic coordinates: -121.24573, 36.96299 (WGS84)
Elevation 539
Relative position 17 MI NE OF HOLLISTER

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mariposa Peak(quadrangle 1:24,000 scale)

Monterey(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)

Geographic areas

Country State County
United States California Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011S 007E 19 California

Comments on the location information

  • LOCATED AT CENTER OF SECTION

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Chalcedony Gangue
Pyrite Gangue

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -121.24573, 36.96299
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Strinking N 55 - 65 E

Ore body information

  • Strike N 55 E
    Dip 30 S

Controls for ore emplacement

  • Fault Gouge

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1870
Production years 1870 - 1880

Mining district

District name Stayton

Ownership information

  • Type Owner
    Owner French, T. H.

Comments on the production information

  • HOLMES SAYS 500 FL PRODUCED

Workings at the site

  • Type of workings Underground
    Length 175.26M
    Overall depth 76.2M

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

    BAILEY, E. H. AND MYERS, W. B., 1949, QUICKSILVER AND ANTIMONY DEPOSITS OF THE STAYTON DISTRICT, CALIFORNIA: CALIF. DIV. OF MINES AND GEOLOGY BULL. 147, P. 37 - 56

  • Deposit

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

  • Deposit

    5) FORSTNER, W., 1908, QUICKSILVER RESOURCES OF CALIFORNIA: CDMG BULL. 27, 270 P.

  • Deposit

    6) LEITH, C.J., 1949, GEOLOGY OF THE QUIEN SABE QUADRANGLE, CALIF.: CDM BULL. 147, P. 33-34

  • 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.

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.