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Ragged Top Mine

Past Producer in Pershing county in Nevada, United States with commodities Tungsten, Copper, Beryllium
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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 10088843
MRDS ID M060241
Record type Site
Current site name Ragged Top Mine
Alternate or previous names NBMG Sample Site 2997

Geographic coordinates

Geographic coordinates: -118.80849, 40.04211 (WGS84)
Elevation 1524
Relative position 10 MI. W OF TOULON

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ragged Top Mountain(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)

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 025N 028E 11,12 NE OF NE (11); NW OF NW (12) Nevada

Comments on the location information

  • NW FLANK OF RAGGED TOP MOUNTAIN, NEAR BASE

Commodities

Commodity Importance
Tungsten Critical Primary
Copper Tertiary
Beryllium Critical Tertiary

Materials information

Materials Type of material
Scheelite Ore
Calcite Gangue
Epidote Gangue
Pyrite Gangue
Quartz Gangue
Chalcopyrite Unknown

Analytical data

Result SAMPLE 2997 OF MASSIVE GARNET SKARN WITH RED-BROWN GARNET, DIOPSIDE, SOME EPIDOTE, QUARTZ, SOME PYRITE AND DISSEMI-NATED SCHEELITE WITH PALE BLUE FLUORESCENCE CONTAINS 5 % FE, 0-.5 % MG, 10 % CA, 0.07 % TI, 5000 PPM MN, 10 PPM B, 1 PPM BE, -5 PPM CO, 50 PPM CR, 70 PPM CU, 20 PPM MO, 10 PPM NI, 5 PPM SC-, 100 PPM SN, 100 PPM SR, 50 PPM V, 50 PPM W, 200 PPM ZN, 15 P-PM 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 > 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 Sedimentary Rock > Carbonate > Limestone

Economic information

Ore body information

  • General form IRREGULAR
    Thickness 12.19M
    Length 27.43M
    Width 18.29M

Comments on the geologic information

  • IN PLACES SCHEELITE OCCURS IN THE GARNET-RICH PART OF TACTITE AS PARTICLES LESS THAN 1/50 INCH AND RARELY AS BLACK PIECES UP TO SEVERAL INCHES IN DIAMETER. THE MINABLE ORE WAS IRREGULARLY DISTRIBUTED IN HIGH-GRADE CONCENTRATION IN THE TACTITE PENDANTS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1915
Year of first production 1916

Mining district

District name Ragged Top District

Land status

Ownership category Private

Production statistics

  • Year 1917
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^1.25% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    WO3 Ore Tungsten Tungsten 1wt-pct
  • Year 1917
    Period 1916-1917
    Material ORE W
    Accuracy Estimate
    Description Cp_Grade: ^1.25% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    WO3 Ore Tungsten Tungsten 1wt-pct
  • Year 1956
    Period 1917-1956
    Material W03
    Accuracy Estimate
    Description Cp_Grade: ^From Ore That Probably Averaged About 1.0 % W03
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    WO3 Tungsten Tungsten 1wt-pct

Comments on the production information

  • 3600 TONS ORE CONTAINING 1.25% WO3, 1916-1917

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 25.91M

Comments on the workings information

  • SHAFTS, ADITS, TUNNELS, OPEN CUTS. OPEN CUT IS ABOUT 40 FT DEEP, 60 FT WIDE, 90 FT LONG; SHAFT IS 85 FT DEEP WITH 2 LEVELS.

Comments on development

  • SCHEELITE WAS DISCOVERED IN 1916 AND H. M. BYLLESBY & CO., WHO LATER BECAME THE CHICAGO-NEVADA TUNGSTEN CO, SHIPP-ED 3600 TONS ORE AVERAGING 1.25 % W03 TO EUREKA UTAH FOR MILLI-NG. A LARGER TONNAGE WAS TREATED IN A MILL BUILT NEAR THE RAIL-ROAD AT TOULON. THE COMPANY CEASED OPERATIONS IN APRIL 1917 WH-EN MINING PROVED TO BE UNPROFITABLE BECAUSE OF THE SMALL ORE B-ODIES. TOTAL PRODUCTION DURING THIS PERIOD IS UNKNOWN BUT WAS -ESTIMATED FROM THE SIZE OF THE MINE WORKINGS TO BE ABOUT 12000- TONS OF ORE THAT PROBABLY AVERAGED 1.0 % W03. THE PROPERTY WA-S SUBSEQUENTLY PURCHASED BY THE NEVADA-MASSACHUSETTS CO., AND -LATER BY RARE METALS CORP ALONG WITH THE TOULON MILL. THE MILL- WAS REMODELED IN 1936 AND WAS USED TO CONCENTRATE ORE FROM OT-HER LOCALITIES. DURING 1952-1954, A SMALL TONNAGE OF ORE WAS S-HIPPED BY J. F. DELAMARE, AND IN 1955-1956, THE VINCZE BROS SH-IPPED A LITTLE ORE.

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    VANDERBURG, 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; USBM IC 6902

  • Deposit

    HESS & LARSEN, 1922, CONTACT METAMORPHIC TUNGSTEN DEPOSITS OF THE U.S.; USGS BULL. 725-D

  • Deposit

    KERR, 1946, TUNGSTEN MINERALIZATION IN THE UNITED STATES; GSA MEMOIR 15 WARNER, ET.AL., 1959, OCCURRENCE OF NONPEGMATITE BERYLLIUM IN THE UNITED STATES; USGS PP 318.

  • Deposit

    TINGLEY, J. V., 1985, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

  • Deposit

    STAGER, H. K., IN PREPARATION, NBMG BULLETIN ON TUNGSTEN DEPOSITS OF NEVADA.

  • Production

    JOHNSON, M.G., 1977

General comments

Subject category Comment text
Deposit SCHEELITE FIRST DISCOVERED IN GARNETIZED LIMESTONE IN 1915. THE RAGGED TOP GROUP OF CLAIMS WAS EXPLORED AND DEVELOPED IN 1916. ORE WAS MINED AND PRODUCED UNTIL 1917. THE DEPOSIT WAS NOT MINED AGAIN UNTIL 1953 WHEN SMALL QUANTITIES OF TUNGSTEN ORE WAS SHIPPED. DEVELOPED BY NUMEROUS OPEN CUTS, SHAFTS, ADITS, & TUNNELS. MOST OF THE ORE MINED FROM AN OPEN CUT 40 FEET DEEP DUG IN A TACTITE PENDANT 60 X 90 FEET. SOME ORE PRODUCED FROM UNDERGROUND WORKINGS CONSISTING OF AN 85-FT. SHAFT AND TWO TUNNELS ADJOINING THE OPEN CUT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV
Deposit PENDANT OF TACTITE IN GRANODIORITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Harner, Joy L. (Roberts, Ralph J.) Nevada Bureau of Mines and Geology
Updater 01-APR-1986 La Pointe, D.D. (Tingley, J.V.) 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.