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  3. Mineral Resource Data System (MRDS)

Esther Mine

Past Producer in Pershing county in Nevada, United States with commodities Tungsten, Copper
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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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10042473
MRDS ID M060277
Record type Site
Current site name Esther Mine
Alternate or previous names Black Rock Mine

Geographic coordinates

Geographic coordinates: -118.55126, 40.38628 (WGS84)
Relative position ABOUT 1 MI. NW OF TRINITY CANYON MINES

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Natchez Spring(quadrangle 1:24,000 scale)

Lovelock(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Granite Springs Valley(hydrologic unit)

Truckee(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029N 031E 16,17 Nevada

Comments on the location information

  • NEAR HEAD OF BLACK ROCK CYN.

Commodities

Commodity Importance
Tungsten Critical Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Powellite Ore
Scheelite Ore
Epidote Gangue
Garnet Gangue
Hedenbergite Gangue
Quartz Gangue

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 Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Economic information

Ore body information

  • General form IRREGULAR
    Strike N45W
    Dip 80SW
    Length 91.44M
    Width 30.48M
    Depth to bottom 228.6M

Comments on the geologic information

  • SMALL BLOCK OF HORNFELS REMAIN IN GRANODIORITE AS A PENDANT, 50 TO 100 FT WIDE AND 300 FT. LONG. THE SEDIMENTS ARE METAMORPHOSED AND ALMOST COMPLETELY ALTERED TO EPIDOTE AND QUARTZ CONTAINING RIBS OF GARNET 10 TO 15 FT. WIDE THAT STRIKE WITH THE LONG AXIS OF THE PENDANT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1943
Year of first production 1943

Mining district

District name Trinity District

Land status

Ownership category BLM Administrative Area

Production statistics

  • Year 1943
    Material ORE WO3
    Accuracy Accurate
    Description Ap_Grade: ^0.96% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Ore Tungsten Tungsten 1wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Length 106.68M
    Overall depth 18.29M

Comments on the workings information

  • SHAFT, ADIT, PITS, TRENCHES

Reference information

Bibliographic references

  • Deposit

    JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89

  • Deposit

    JOHNSON AND BENSON, 1963, TUNGSTEN RESOURCES IN NEVADA; USBM

  • Production

    JOHNSON, 1977

General comments

Subject category Comment text
Deposit DEVELOPED BY A 60 FOOT SHAFT, A 350 FT. ADIT THAT CONNECTS WITH THE SHAFT, 3 SURFACE PITS, AND TRENCHES. CROSSCUTS EXTEND FROM ADIT OUTLINE THE TACTITE AREA TO A DEPTH OF 50 FEET BELOW THE OUTCROP. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1980 Harner, Joy L. (Roberts, Ralph J.) Nevada Bureau of Mines and Geology
Updater 01-FEB-1981 Royse, Sue E. 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 Nevada resources

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