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Hemet Magnesite Mine

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

Geologic information

Identification information

Deposit ID 10064424
MRDS ID TC38787
Record type Site
Current site name Hemet Magnesite Mine
Related records 10213142

Geographic coordinates

Geographic coordinates: -116.92169, 33.69643 (WGS84)
Relative position 4 MILES SE OF WINCHESTER.

Site location context

Political divisions (FIPS codes)

Riverside(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hemet(quadrangle 1:24,000 scale)

Palm Springs(quadrangle 1:100,000 scale)

Santa Ana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Jacinto(hydrologic unit)

Santa Ana(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Riverside

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 05S 001W 31 NW4 California

Commodities

Commodity Importance
Magnesite Primary

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -116.92169, 33.69643
ListMap

Economic information

Ore body information

  • General form VEINS

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Workings at the site

  • Type of workings Surface
    Length 76.2M
    Overall depth 73.15M
    Overall width 21.34M

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. 175

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit OCCURS IN STOCKWORK OF VEINS IN A BELT OF SERPENTINE 200-400 FT WIDE INTRUSIVE INTO MICACEOUS GNEISS AND SCHIST.

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.