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True American Mine

Producer in Pershing county in Nevada, United States with commodities Tungsten, Molybdenum
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10008817
MRDS ID D001234
Record type Site
Current site name True American Mine
Related records 10222367

Geographic coordinates

Geographic coordinates: -117.47262, 40.43907 (WGS84)
Elevation 2134
Relative position APPROXIMATELY 4 MILES WEST OF BUFFALO SPRINGS.

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Buffalo Springs(quadrangle 1:24,000 scale)

Fish Creek Mountains(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dixie Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 030N 040E 27 SW OF SW Nevada

Comments on the location information

  • ON EAST FLANK OF TOBIN RANGE ON STEEP RIDGE NORTH OF MORNING VIEW CANYON. . INFO FROM LAND.ST :(1972); PREVIOUS QUAD DESIGNATION = BUFFALO SPRINGS 1:24000

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Tertiary

Materials information

Materials Type of material
Scheelite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification Of Limestone.

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Pumpernickel;;
    Rock description Pumpernickel;;

Nearby scientific data

(1) -117.47262, 40.43907
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Length 15.24M
    Width 0.61M

Controls for ore emplacement

  • Bedding Planes; Near Contact Of Granodiorite Pluton

Comments on the geologic information

  • THIN-BEDDED LIMESTONE STRIKES NORTH AND DIPS SOUTHEAST AND IS INTERBEDDED WITH SHALES AND VOLCANICS. THE GRANODIORITE STOCK INTRUDES SEDIMENTARY ROCKS WEST OF THE MINE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1940
Discoverer John B. Blossom, Battle Moutain
Year of first production 1941
Year of last production 1954

Mining district

District name Tobin And Sonoma Range Mining Area

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner John B. Blossom

Production statistics

  • Year 1954
    Period 1941-1954
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Tungsten Tungsten 3wt-pct

Comments on the production information

  • JOSON AND BENSON REPORT THAT 33 TONS OF SELECTED, SORTED ORE, CONTAINING 1.69-11.1% WO3 WERE SHIPPED (DATES UNSPECIFIED).

Comments on the workings information

  • 2 SHORT ADITS AND SEVERAL PITS.

Comments on development

  • BLOSSOM OPERATED THE MINE DURING 1941-1943 AND 1951-1954.

Reference information

Bibliographic references

  • Deposit

    JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY NEVADA: NBMG BULL. 89, P. 95-96.

  • Deposit

    STAGER, H.K., AND TINGLEY, J.V., 1988, TUNGSTEN DEPOSITS IN NEVADA: NBMG BULL. 105., P. 194.

  • Deposit

    LEMMON, D. L. AND TWETO, O. L., 1962, TUNGSTEN: USGS MAP MR-25, P. 14.

  • Deposit

    LEMMON, D. M., UNPUBLISHED DATA: NBMG UNPUBLISHED (TINGLEY) FILES.

  • Deposit

    JOHNSON, A.C. AND BENSON, W.T., 1963, TUNGSTEN RESOURCES OF NEVADA: USBM OPEN FILE REPORT 85-3

  • Production

    STAGER AND TINGLEY (1988)

General comments

Subject category Comment text
Deposit SCHEELITE OCCURS IN LENSES OF SILICIFIED LIMESTONE CUT BY NUMEROUS QUARTZ STRINGERS, 1-24 INCHES WIDE AND UP TO 50 FEET LONG. TWO LENSES YIELDED 1 TO 6 TONS OF SORTED HIGH GRADE ORE EACH AND TWO OTHERS YIELDED ABOUT 100 TONS ORE THAT CONTAINED ABOUT 2.5 % WO3. MINOR PYRITE AND MOLYBDENITE ARE ALSO PRESENT. JOHNSON AND BENSON REPORTED A 1 FOOT SAMPLE FROM NO. 1 ADIT ASSAYED 4.20% WO3 AND A 0.7 FOOT SAMPLE FROM NO. 2 ADIT ASSAYED 5.12% WO3.; MODEL NAME COULD ALSO BE: W VEINS.
Deposit THIS RECORD HAS BEEN MERGED WITH M242839, WHICH HAS BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Elliott, James E. U.S. Geological Survey
Updater 01-MAR-1987 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-APR-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-OCT-1993 Humphries, S. E. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1994 Li, Zhiping (Peters, S.) U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Nevada resources

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