Tungstar

Past Producer in Inyo county in California, United States with commodity Tungsten
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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10008715
MRDS ID D001060
Record type Site
Current site name Tungstar
Alternate or previous names Crawford, Mt. Tom
Related records 10260466

Geographic coordinates

Geographic coordinates: -118.71762, 37.38327 (WGS84)
Elevation 518
Relative position STEEP WEST SHOULDER OF MT. TOM

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Morgan(quadrangle 1:24,000 scale)

Bishop(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Crowley Lake(hydrologic unit)

Mono-Owens Lakes(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Inyo National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 07S 30E 04,09,15 California

Commodities

Commodity Importance
Tungsten Critical Primary

Comments on the commodity information

  • LOW-GRADE ORE ON BOTTOM LEVEL

Materials information

Materials Type of material
Scheelite Ore
Phlogopite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -118.71762, 37.38327

Economic information

Geologic structures

Type of structure Regional
Structure description Sierra Nevada Batholith

Ore body information

  • General form IRREGULAR
    Dip NEAR VERTICAL
    Length 30.48M
    Width 12.19M
    Depth to top 0M
    Depth to bottom 106.68M

Controls for ore emplacement

  • Contact Zone

Comments on the geologic information

  • GEOL.DESC: QUART DIORITE IS VARIABLE, A COARSE-GRAINED VARIETY APPEARS INTRUSIVE, BUT MEDIUM AND FINE GRAINED VARIETIES MAY REPRESENT ALTERED VOLCANIC ROCKS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1936
Year of first production 1939
Production years 1939-1945

Mining district

District name Pine Creek Area

Land status

Ownership category National Forest

Production statistics

  • Year 1944
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Tungsten Tungsten 3wt-pct
  • Year 1945
    Period -1945
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Tungsten Tungsten 3wt-pct

Comments on the workings information

  • ADIT 800 FT. LONG, INCLINED WINZE 190 FT. DEEP; 2 COMPARTMENT VERTICAL SHAFT SUNK NEAR ADIT PORTAL WITH CROSSCUTS ON 2 LEVELS. ANOTHER ADIT AND OPEN PIT AT THE STEVENS ORE BODY

Reference information

Bibliographic references

  • Deposit

    LEMMON, D.M., TUNGSTEN DEPOSITS IN THE U.S., VOL. I; UNPUBLISHED DATA, P. 245-248.

  • Deposit

    LEMMON, D.M. AND TWETO, O.L., 1961: TUNGSTEN IN THE U.S.; U.S.G.S. MAP, MR-25.

  • Deposit

    LENHART, W.B., 1941, MILLING SCHEELITE AT TUNGSTAR MINE: MINING CONG. JOUR., VOL. 27, NO. 4, P.67-71.

  • Deposit

    USGS

  • Production

    LEMMON, D.M.

General comments

Subject category Comment text
Deposit GREENE ORE BODY AT DEPTH WAS SMALLER THEN AT THE SURFACE, CONSTRICTION MAY ONLY BE LOCAL.
Deposit STEVENS ORE BODY 170 FT. EAST OF GREENE BODY IS 200 FT. LONG AND 20-90 FT. WIDE. LITTLE PRODUCTION FROM STEVENS ORE BODY IT CONTAINED ONLY .5% WO3

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Elliott, James E. U.S. Geological Survey
Updater 01-APR-1979 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey HOST ROCK AGE CORRECTED, DELETED HOST ROCK FROM IGNEOUS ROCK TYPE.
Updater 01-OCT-1991 Mosier, Dan U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 09-JUN-1995 Mosier, Dan U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.