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

New Almaden - South Randol

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. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10103808
MRDS ID M055612
Record type Site
Current site name New Almaden - South Randol

Geographic coordinates

Geographic coordinates: -121.8477, 37.17909 (WGS84)
Elevation 439

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Santa Teresa Hills(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Coyote(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Federal lands

LG(Federal land areas administered by LG)

Geographic areas

Country State County
United States California Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009S 001E 03 California

Comments on the location information

  • WEST OF RANDOL SHAFT LOCATED ON ST. GEORGE SHAFT

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Mercury Ore

Alteration

  • (Local) Silica Carbonate Alteration Of Serpentine

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -121.8477, 37.17909
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Serpentine - Sediment Contact

Ore body information

  • General form IRREGULAR
    Strike E
    Dip 55 N

Controls for ore emplacement

  • Local Fractures Trending N

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1871

Mining district

District name New Almaden

Comments on the production information

  • CONSIDERED PART OF THE NEW ALMADEN MINE.

Reference information

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.