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Copperopolis Mine

Producer in Calaveras county in California, United States with commodity Asbestos
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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. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10080546
MRDS ID W031824
Record type Site
Current site name Copperopolis Mine
Alternate or previous names Calaveras Asbestos Ltd. Mine, Jefferson Lake, American, California, Pacific, Voorhees

Geographic coordinates

Geographic coordinates: -122.53634, 37.93796 (WGS84)
Elevation 280
Relative position 7 MILES SE OF COPPEROPOLIS.

Site location context

Political divisions (FIPS codes)

Marin(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Rafael(quadrangle 1:24,000 scale)

San Francisco(quadrangle 1:100,000 scale)

San Francisco(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Pablo Bay(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 013E 16,15,21,22 E2 (16) California

Commodities

Commodity Importance
Asbestos Primary

Materials information

Materials Type of material
Chrysotile Ore
Serpentine Gangue

Alteration

  • (Local) Serpentinization

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite

Nearby scientific data

(1) Franciscan melange
ListMap

Economic information

Ore body information

  • General form LENSOID
    Length 609.6M
    Width 103.63M

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Deposit size Large
Significant No

Ownership information

  • Type Owner-Operator
    Owner Calaveras Asbestos Ltd.

Comments on the workings information

  • OPEN PIT.

Reference information

Bibliographic references

  • Deposit

    ENGINEERING AND MINING JOURNAL, 1978, DIRECTORY OF MINING AND MINERAL PROCESSING OPERATIONS: NEW YORK, MCGRAW-HILL MINING INFORMATION SERVICES, P. 164.

  • Deposit

    CLARK, W.B., AND LYDON, P.A., 1962, MINES AND MIENRAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY COUNTY REPORT 2, 217 P.

General comments

Subject category Comment text
Deposit STOCKWORKS OF CROSS-FIBER CHRYSOTILE SEAMS AND VEINLETS IN PALE-GREEN SERPENTINE. THE HIGHEST GRADE MATERIAL IS IN THE CENTER OF THE DEPOSIT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 Unknown U.S. Geological Survey
Updater 11-OCT-1994 Orris, Greta J. 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.