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Sorenson Fluorite Group

Occurrence in Esmeralda county in Nevada, United States with commodities Fluorine-Fluorite, 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. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  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 10046762
MRDS ID M241968
Record type Site
Current site name Sorenson Fluorite Group
Alternate or previous names Army Group, Sorenson Tungsten Group, Amry Prospect, Aurora?

Geographic coordinates

Geographic coordinates: -117.63342, 37.37078 (WGS84)
Elevation 2195
Location accuracy 1000(meters)
Relative position 5.2 MILES BY ROAD SOUTH OF NEVADA HIGHWAY 3, AND 0.6 MILE EAST OF MAIN CUCOMUNGO CANYON RD.

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Last Chance Mountain(quadrangle 1:24,000 scale)

Last Chance Range(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Death Valley-Lower Amargosa(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(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 Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006S 039E 34 Nevada

Comments on the location information

  • 5 CLAIMS IN CUCOMONGO GULCH. 1 MILE EAST (ON RD) OF CUCOMUNGO SPRING. CLAIMS ON TOP OF A DIVIDE. (EXACT LOCATION UNCERTAIN) ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Tungsten Critical Primary

Comments on the commodity information

  • LIGHT GREENISH-GRAY FINE-GRAINED FLUORITE

Materials information

Materials Type of material
Fluorite Ore
Scheelite Ore
Calcite Gangue
Epidote Gangue
Garnet Gangue
Quartz Gangue

Alteration

  • (Local) Silicification Of Limestone.

Analytical data

Result 2 SPECIMENS RAN ABOUT 60% FLUORITE. OTHERS CONTAINED 39.4%, 33.0% AND 15.4% CA. F2

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -117.63342, 37.37078
ListMap

Economic information

Ore body information

  • General form TABULAR TO LENTICULAR
    Strike N60W
    Dip 80 SW (TACTITE BAND); STEEPLY NE-FLUORITE ZONE
    Thickness 1.22M
    Length 15.24M
  • General form TABULAR TO LENTICULAR
    Strike N60W
    Dip 80 SW (TACTITE BAND); STEEPLY NE-FLUORITE ZONE

Controls for ore emplacement

  • Tactite Zone Along Contact Of Granitic Rocks With Limestone. Fluorite Is In A Nssw Fracture Zone

Comments on the geologic information

  • LENS OF METAMORPHOSED CALCAREOUS SEDIMENTS IS 300-500 FT WIDE, TRENDING NW FOR ABOUT 1000 FT. OR MORE. ALTERATION IS IRREGULAR; IN PLACES, LIMESTONE IS COMPLETELY REPLACED BY GARNET. WHERE THE ALTERATION IS INCOMPLETE, FORMATIONS ARE FRACTURED AND SEAMED WITH STRINGERS OF QUARTZ. SCHEELITE OCCURS IN THE QUARTZ SEAMS, IS SPARSELY DISSEMINATED IN THE SILICIFIED LIMESTONES AND OCCURS ONLY AS OCCASIONAL FLECKS IN THE GARNET.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No
Discovery year 1939
Discoverer R.B. Sorenson

Mining district

District name Sylvania (Green Mountain) District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner R. S. Sorenson Of Tonopah
    First year 1945

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 4.88M

Comments on the workings information

  • 16-FT DEEP PIT PLUS OTHER PITS AND TRENCHES (AS OF 1945), AND DRIFTS (1970), SHALLOW SHAFTS.

Comments on development

  • CLAIMS WERE MAINTAINED BY R.B. SORENSON FROM THEIR LOCATION IN 1939 UNTIL 1970 WHEN THEY LAPSED.

Reference information

Bibliographic references

  • Deposit

    USBM, (NO DATE), UNPUBLISHED PRELIMINARY EXAMINATION REPORT: NBMG FILE 102, ITEM 1

  • Deposit

    HUMPHREY, F.L., 1945, UNPUBLISHED REPORT ON SORENSON FLUORITE CLAIMS; NBMG FILE 102, ITEM 2.

  • Deposit

    PAPKE, K.G., 1979, NBMG BULL 93, P. 20

  • Deposit

    USBM, 1963, UNPUBLISHED DATA ON THE ARMY PROSPECT: NBMG FILE 102 ITEM 12.

General comments

Subject category Comment text
Deposit SOME FLUORITE OCCURS IN TACTITE ALONG A CONTACT OF GRANITIC ROCKS WITH LIMESTONE. FLUORITE OCCURS IN A FRACTURE ZONE BETWEEN COMPLETELY GARNETIZED TACTITE AND PARTIALLY REPLACED LIMESTONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-82 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.