Stormy Day Mine

Past Producer in Pershing county in Nevada, United States with commodities Tungsten, Molybdenum, Copper

Geologic information

Identification information

Deposit ID 10047338
MRDS ID M242625
Record type Site
Current site name Stormy Day Mine
Alternate or previous names Old Thrasher, Milky Way, NBMG Sample Site 2921, NBMG Sample Site 2922

Geographic coordinates

Geographic coordinates: -119.29211, 40.43738 (WGS84)
Elevation 1658
Relative position ABOUT 18 MILES SE OF GERLACH ON WEST SIDE OF SELENITE RANGE.
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Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 030N 024E 28 NE OF SE Nevada

Comments on the location information

  • ACCESSIBLE BY GOOD DIRT ROAD ACROSS PRIVATE LAND WHICH IS FENCED AND POSTED (1985). ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Tungsten Primary
Molybdenum Tertiary
Copper Tertiary

Comments on the commodity information

  • LAMPING OF ORE SHOWED IT TO BE OF VERY GOOD GRADE. AVERAGED 0.66% WO3.

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Powellite Ore
Scheelite Ore
Epidote Gangue
Garnet Gangue
Pyrite Gangue
Pyroxene Gangue
Pyrrhotite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Analytical data

Result SAMPLE 2921 WAS FROM ORE STOCKPILE AT MAIN ADIT PORTAL. SAMPLE 2922 WAS CHIPPED FROM A VEIN NEAR THE CONTACT AND INCLUDED VEIN MATERIAL (QUARTZ) AND GARNETIFEROUS TACTITE CONTAINING PYRITE, CHALCOPYRITE, MOLYBDENITE, SCHEELITE AND POWELLITE. ANALYSES ON FILE AT NBMG.

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 Jurassic
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Auld Lang Syne Group
    Rock description Auld Lang Syne Group
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -119.29211, 40.43738

Ore body information

  • General form IRREGULAR TO TABULAR
    Strike N-S
    Dip 50-70 W
    Thickness 4.57M
    Depth to bottom 106.68M
    Depth to top 0M
    Width 99.06M
    Length 4827.9M

Controls for ore emplacement

  • Igneous Contact Of Granodiorite With Carbonate Rocks

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1941
Discoverer John J. Thrasher

Mining district

District name Hooker, Empire & Gerlach Districts

Land status

Ownership category BLM Administrative Area

Production statistics

  • Year 1957
    Period 1941-1957
    Material ?
    Description Cp_Grade: ^0.66% Wo3 To 1% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Tungsten Tungsten 1wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Length 609.6M
    Overall depth 68.58M

Comments on the workings information

  • 2 CROSS CUTTING ADITS DRIVEN UNDER MINERALIZED OUTCROP, AND LESSER ADITS AND PITS ABOVE AND ALONG THE N-S STRUCTURES; DRIFTS, STOPES. 4 LEVELS OF WORKINGS

Comments on development

  • FIRST DEVELOPED DURING WWII. PRODUCTION FROM 1941 TO 1957 BY SHRINKAGE STOPE METHODS FROM 300 FEET OF DRIFTS 105 AND 125 FEET BELOW THE SURFACE AND 390-FOOT DRIFTS FROM THE MAIN ADIT. IN 1985, THE MAIN ADIT HAD AN ORE-BIN AND STOCKPILES OF ORE NEAR THE ENTRANCE, WHICH WERE SAMPLED (2921). DEPOSIT WAS FIRST EXPLORED BY SMALL ADITS AND TEST PITS ALONG THE OUTCROP ZONE FOR ABOUT 3 MILES. A LEASE AND OPTION WAS OBTAINED BY STANLEY F. O'LEARY, WHO EXPLORED THE SOUTH PART OF THE DEPOSIT WITH GOVERNMENT ASSISTANCE UNDER THE DMEA PROGRAM, DURING 1953-1954. OTHER INDIVIDUALS AND MINING COMPANIES LEASED THE PROPERTY FOR SHORT PERIODS UNTIL 1957. DIAMOND DRILLING IN 1953 INDICATED THAT ORE EXTENDED AT LEAST 100 FT BELOW THE LOWEST ADIT LEVEL. INACTIVE IN 1985; MINED IS LOCKED UP AND APPEARS TO HAVE BEEN SO FOR A CONSIDERABLE PERIOD OF TIME.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M242625

Bibliographic references

  • Deposit

    QUADE, JACK, 1985, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS, 4 JUN 85.

  • Deposit

    JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA: NBMG BULL 89, P. 58-60.

  • Deposit

    JOHNSON, A.C., 1958, EXPLORATION, DEVELOPMENT, AND COSTS OF THE STORMY DAY TUNGSTEN MINE, PERSHING COUNTY, NEVADA: USBM I C 7854.

  • Deposit

    WILSON, G.E., 1975, STUDIES OF SCHEELITE IN TACTITE DEPOSITS OF THE STORMY DAY MINE; PERSHING COUNTY, NEVADA: M.S. THESIS, UNR.

  • Deposit

    STAGER, H. K. & TINGLEY, J. V., 1988, TUNGSTEN DEPOSITS IN NEVADA: NBMG BULL. 105.

  • Deposit

    JOHNSON, A. C. AND BENSON, W. T., 1963, TUNGSTEN RESOURCES OF NEVADA: USBM OPEN-FILE REPORT.

  • Production

    JOHNSON, M.G., P. 38

General comments

Subject category Comment text
Deposit THIS RECORD HAS BEEN MERGED WITH M234143 AS WELL AS M060203, M030092 AND D001180 WHICH HAVE BEEN DELETED.
Deposit TACTITE BODIES OCCUR ALONG THE CONTACT OF MARBLIZED LIMESTONE/DOLOMITE AND GRANITE. THREE ORE SHOOTS OCCUR ALONG STRIKE OF THE CONTACT; THE CENTRAL ORE SHOOT IS FULLY DEVELOPED WHILE THE OTHER 2 ARE ONLY PARTIALLY DEVELOPED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1980 Royce, Sue E. Nevada Bureau of Mines and Geology
Updater 01-OCT-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-JUN-1986 La Pointe, D. D. Nevada Bureau of Mines and Geology
Updater 01-NOV-1990 Skurski, M. (Marcus, Sue) U.S. Geological Survey
Updater 01-APR-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-APR-1993 Humphries, S. E. (Marcus, S.) U.S. Geological Survey