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  3. Mineral Resource Data System (MRDS)

Brown Silica Deposit

Occurrence in Riverside county in California, United States with commodity Silica
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10064421
MRDS ID TC38784
Record type Site
Current site name Brown Silica Deposit
Related records 10256459

Geographic coordinates

Geographic coordinates: -115.82583, 33.76587 (WGS84)
Relative position 3 MILES NORTH OF COTTONWOOD SPRINGS.

Site location context

Political divisions (FIPS codes)

Riverside(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Porcupine Wash(quadrangle 1:24,000 scale)

Eagle Mountains(quadrangle 1:100,000 scale)

Salton Sea(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Mojave(hydrologic unit)

Southern Mojave(hydrologic accounting unit)

Southern Mojave-Salton Sea(hydrologic subregion)

California(hydrologic region)

Federal lands

Joshua Tree National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California Riverside

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 005S 011E 3 California

Comments on the location information

  • LAT-LONG FROM CENTER OF SECTION.

Commodities

Commodity Importance
Silica Primary

Materials information

Materials Type of material
Quartz Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -115.82583, 33.76587
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Length 91.44M
    Width 6.1M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • 1935-300 TONS SHIPPED.

Workings at the site

  • Type of workings Surface
    Length 30.48M
    Overall depth 60.96M

Comments on the workings information

  • OPEN CUT.

Reference information

Bibliographic references

  • Deposit

    SAMPSON, R.J., AND TUCKER, W.B., 1945, MINERAL RESOURCES OF RIVERSIDE COUNTY; CALIFORNIA DIVISION OF MINES AND GEOLOGY, VOL. 41, NO. 3, P. 163

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit QUARTZ OUTCROP IN GRANITE, 98.6% SIO2.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1993 Unkefer, Jason 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.