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  3. Mineral Resource Data System (MRDS)

Florence Group

Occurrence in Pershing county in Nevada, United States with commodity Tungsten
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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. Geologic structures
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10044117
MRDS ID M231458
Record type Site
Current site name Florence Group
Alternate or previous names Florence Hill Prospects, East Group

Geographic coordinates

Geographic coordinates: -118.12709, 40.80183 (WGS84)
Elevation 1554

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Woody Canyon(quadrangle 1:24,000 scale)

Eugene Mountains(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(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 034N 034E 23 Nevada

Comments on the location information

  • BETWEEN POLE AND OLSEN CANYONS ON THE EAST FLANK OF THE EUGENE MOUNTAINS

Commodities

Commodity Importance
Tungsten Critical Tertiary

Materials information

Materials Type of material
Scheelite Ore
Epidote Gangue
Garnet Gangue

Alteration

  • (Local) Silicification

Analytical data

Result ORE REPORTED TO CONTAIN 2.5-3.0 % W03 UP TO 13 % W03

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
    Rock unit name Raspberry
    Rock description Raspberry
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Metamorphic Rock > Hornfels
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Olsen Stock
    Rock description Olsen Stock

Nearby scientific data

(1) -118.12709, 40.80183
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description North Dipping Fault

Comments on the geologic information

  • A FAULT DISPLACES THE DARK BLUE-GRAY LIMESTONE WESTWARD ON NORTHSIDE OF FAULT. BUNCHES OF GOOD GRADE ORE OCCUR ON FOOTWALL SIDE OF LIMESTONE AND DRAGGED ALONG THE FAULT.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1918

Mining district

District name Mill City District

Land status

Ownership category Private

Comments on the workings information

  • SHALLOW SHAFTS AND SURFACE WORKINGS

Reference information

Bibliographic references

  • Deposit

    HERSHEY, O.H., 1918, UNPUBLISHED REPORTS

  • Deposit

    STAGER, H. K., IN PREP, NBMG BULL ON TUNGSTEN DEPOSITS OF NEVADA

General comments

Subject category Comment text
Deposit TACTITE ZONES THAT GRADE RAPIDLY INTO BARREN LIMESTONE ALONG STRIKE TO THE NORTH ZONES OF GOOD GRADE ORE OCCUR ALONG A FAULT.
Deposit THE FLORENCE HILL PROSPECTS EAST OF THE TOM CAT PROSPECTS ALONG THE CONTACT WITH GRANODIORITE, SHOW TACTITE ZONES THAT RAPIDLY GRADE INTO BARREN LIMESTONE ALONG STRIKE TO THE NORTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1980 Royse, Sue E. Nevada Bureau of Mines and Geology
Updater 01-AUG-1985 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.