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Freiberg Tungsten Prospect

Occurrence in Lincoln county in Nevada, United States with commodities Tungsten, Molybdenum, Manganese
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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. Mineral occurrence model information
  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. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10046545
MRDS ID M241726
Record type Site
Current site name Freiberg Tungsten Prospect
Alternate or previous names NBMG Sample Location 1767?

Geographic coordinates

Geographic coordinates: -115.60754, 37.95773 (WGS84)
Elevation 1951

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Worthington Peak(quadrangle 1:24,000 scale)

Timpahute Range(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sand Spring-Tikaboo Valleys(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 Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 057E 07 Nevada

Comments on the location information

  • NEAR NORTH END OF WORTHINGTON MOUNTAINS ; INFO FROM LAND.ST :1972

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Secondary
Manganese Critical Tertiary

Materials information

Materials Type of material
Scheelite Ore
Calcite Gangue
Epidote Gangue

Analytical data

Result GRADE IS ESTIMATED AT LESS THAN 0.4% WO3. NBMG SAMPLE 1767 FROM THIS AREA CONTAINED 3000 PPM MN, 200 PPM AS, 500 PPM B, 700 PPM BA, 70 PPM BI, 150 PPM CU. 150 PPM MO, 200 PPM PB, 500 PPM SR, 5000 PPM W, 1000 PPM ZN, 200 PPM ZR.

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 > Granitoid > Granite
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Pogonip Group
    Rock description Pogonip Group

Nearby scientific data

(1) -115.60754, 37.95773
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault?

Ore body information

  • General form IRREGULAR TO TABULAR
    Strike N70W FRACTURE AND E-W FRACTURE ZONE
    Dip 75 NE
    Thickness 0.91M

Controls for ore emplacement

  • Fracture Or Fault Zone Trending N70w, 75 Ne; Also An E-W Fracture Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Freiberg District

Land status

Ownership category BLM Administrative Area

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 9.14M

Comments on the workings information

  • SHALLOW 30 FT SHAFT, SHORT ADIT TRENDING S75E WITH TRACK AND DUMP STILL REMAINING. SHALLOW TRENCHING AND POSSIBLY DRILL ROADS SURROUND WORKINGS AND EXTEND TO THE SOUTH AND EAST ALONG CONTACT ZONE

Comments on development

  • NO ACTIVITY AT TIME OF EXAMINATION IN 1983. TRENCHING WAS PROBABLY 5-10 YRS. OLD. BULLDOZER WORK WAS OLDER THAN THAT OBSERVED IN AG EXPLORATION ON E. SIDE OF RANGE.

Reference information

Bibliographic references

  • Deposit

    BENTZ, J. AND SMITH, P. 1983, FIELD EXAMINATION REPORT, OCT. 2, 1983

  • Deposit

    STAGER, H.K., BULLETIN IN PREPARATION ON W IN NEVADA.

  • Deposit

    TSCHANZ, C.M. AND PAMPEYAN, E.H., 1970, NBMG BULL. 73.

General comments

Subject category Comment text
Deposit SPARSE DISSEMINATED SCHEELITE WITH POSSIBLY SOME WOLFRAMITE IN LIGHT GREEN TACTITE IN THE CONTACT ZONE SURROUNDING THE WESTERN STOCK WHERE LIMESTONE IS IN CONTACT WITH GRANITE. A LARGER AREA OF TACTITE FAVORABLE FOR SCHEELITE DEPOSITS IS PRESENT. WORKINGS FOLLOW 2 FRACTURE ZONES ONE TRENDING N70W, DIP 75 NE AND ONE TRENDING E-W. STEEPLY INCLINED FRACTURE SURFACES IN THE TACTITE ARE COATED BY MASSIVE TO CRYSTALLINE EPIDOTE. FRACTURE OF THE CARBONATES ADJACENT TO THE INTRUSIVE PROVIDED AN AVENUE FOR MINERALIZING FLUIDS. TACTITE COLLECTED FROM THE DUMP IS EPIDOTE-RICH, DENSE,AND CONTAINS COARSE CRYSTALS AND PODS OF WHITE CALCITE. CALCITE COATS FRACTURE SURFACES AND THE ROCK CONTAINS ONLY VERY MINOR FE OXIDES. WHEN LAMPED. THE SAMPLE SHOWED COARSE SCATTERED FLAKES OF SCHEELITE AND POWELLITE, SOME CRYSTALS INTERGROWN OR GRADATIONAL. WOLFRAMITE LEPORTED(NBMG BULL 73) BUT NONE WAS SEEN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1984 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

Beyond USGS

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

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.