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  3. Mineral Resource Data System (MRDS)

Ferraro Prospect

Occurrence in Santa Clara 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. Ore body information
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10043406
MRDS ID M100155
Record type Site
Current site name Ferraro Prospect
Alternate or previous names Winship Properties

Geographic coordinates

Geographic coordinates: -121.48824, 37.4227 (WGS84)
Relative position ASSUMED SPOT AT CENTER OF SECT. 12

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Boardman(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco 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 Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006 004E 12 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE CONTAINED LESS THAN 35 % CR2O3

Nearby scientific data

(1) -121.48824, 37.4227
ListMap

Economic information

Ore body information

  • General form LENSE

Comments on the geologic information

  • DEPOSIT OCCURS IN AN ULTRAMAFIC MASS 8 MILES LONG AND 1 3/4 MILES WIDE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner Winship, K. D.
    First year 1918

Comments on the production information

  • BETWEEN 245 TO 290 LONG TONS PRODUCED FROM THE WINSHIP PROPERTIES.

Comments on the workings information

  • WORKINGS CONSISTED OF SEVERAL OPEN CUTS.

Reference information

Bibliographic references

  • Deposit

    WALKER G.W. AND GRIGGS, A.B. 1953 GEOL. INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART II, CHAPT. 2, P. 71,72,87

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 Oster, Karel L. (Albers, John P.) 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.