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  3. Mineral Resource Data System (MRDS)

Valenti Claim

Occurrence in Calaveras county in California, United States with commodity Chromium
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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. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10029036
MRDS ID M006372
Record type Site
Current site name Valenti Claim

Geographic coordinates

Geographic coordinates: -120.51518, 38.1388 (WGS84)
Relative position A FEW HUNDRED FEET BELOW THE MADRID MINE IN SW1/4 OF THE SEC. PL. 1 AND 2 OF SP. REPT. 40 SHOWS THIS MINE IN THE SE. COR. NW1/4 OF THE SEC.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Calaveritas(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(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 003N 013E 02 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -120.51518, 38.1388
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: LENS OF NEARLY MASSIVE CHROMITE, 1-4' THICK, STRIKES N. 60 DEG. E; COUNTRY ROCK IS SHEARED SERPENTINE. ORE IS MEDIUM-GRAINED, CHROMIC OXIDE IS LOW, 28%. ESTIMATED TO CONTAIN 200 TONS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Murphy Area

Comments on the production information

  • PROSPECTED DURING 1930S AND 1940S.

Comments on the workings information

  • TRENCHING. PERHAPS 200 TONS OF ORE COULD BE MINED FROM THIS DEPOSIT.

Reference information

Bibliographic references

  • Deposit

    CALIF. B. 134, PT. III, CH. 2, P. 57, AND PL. 5

  • Deposit

    CALIF. SP REPT. 40, P. 21 AND PL. 1 AND 2; CALIF. COUNTY REPT. NO. 2, P. 130 AND PL. D

  • Deposit

    USGS MAP GQ-222

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.