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  3. Mineral Resource Data System (MRDS)

Digitalli

Occurrence in Amador county in California, United States with commodities Cobalt, Copper, Manganese
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10067578
MRDS ID W000363
Record type Site
Current site name Digitalli

Geographic coordinates

Geographic coordinates: -120.71129, 38.33408 (WGS84)

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mokelumne Hill(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Commodities

Commodity Importance
Cobalt Critical Tertiary
Copper Tertiary
Manganese Critical Tertiary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -120.71129, 38.33408
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: QUARTZ VEIN, UP TO 15 IN., NO. 15 DEG. E. AT 35-55 DEG. NW, IN CONTORTED CALAVERAS QUARTZ-MICA SCHIST. FRACTURED QUARTZ AND COUNTRY ROCK 3 FT. EACH SIDE HAS FILMS OF COBALTIFEROUS MANGANESE OXIDE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Jackson

Comments on the reserve resource information

  • SMALL RESERVES

Reference information

Bibliographic references

  • Deposit

    VHAY, J. S., 1952, COBALT RESOURCES, CHAPT. VI IN MATERIALS SURVEY: COBALT, NATIONAL SECURITY RESOURCES BOARD

  • Reserve-Resource

    UNPUBLISHED CO REPORT

General comments

Subject category Comment text
Deposit BEST PICKED SAMPLE HAD 0.56% CO, 0.25% CU, 5.7% MN. POSSIBLY INDICATES MOTHER LODE IS SOMEWHAT COBALTIFEROUS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 Coury, Anny B. 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.