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Majuba Hill Mine

Past Producer in Pershing county in Nevada, United States with commodities Copper, Tin, Molybdenum, Arsenic, Lead, Uranium, Gold, Silver
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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. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10042468
MRDS ID M060272
Record type Site
Current site name Majuba Hill Mine
Alternate or previous names Tin Mine, NBMG Sample Sites 2844, 2846
Related records 10198550, 10222787

Geographic coordinates

Geographic coordinates: -118.53432, 40.68322 (WGS84)
Elevation 1905
Relative position 18 MI. FROM IMLAY

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Scossa(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 032N 031E 02 Nevada

Comments on the location information

  • GOOD ROAD TO BOTTOM OF MOUNTAIN; ACCESS TO WORKING BY FOOT.

Commodities

Commodity Importance
Copper Primary
Tin Critical Primary
Molybdenum Tertiary
Arsenic Critical Tertiary
Lead Tertiary
Uranium Tertiary
Gold Tertiary
Silver Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Cuprite Ore
Malachite Ore
Fluorite Gangue
Iron Gangue
Pyrite Gangue
Tourmaline Gangue

Alteration

  • (Local) Tourmalinization, Sericitization, Argillization

Mineral occurrence model information

Model code 50
USGS model code 16
Deposit model name Climax Mo

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -118.53432, 40.68322
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Majuba Fault

Ore body information

  • General form TABULAR
    Strike N30W
    Dip 54-84 SW
    Thickness 3.05M
    Length 6.1M
    Width 6.1M

Controls for ore emplacement

  • Fault Zones

Comments on the geologic information

  • GEOL.COM: THE COPPER ORE BODIES WERE FORMED BY THE ENRICHMENT IN COPPER OF A RELATIVELY NARROW ZONE BENEATH THE OXIDIZED ZONE, LOCALIZED ALONG THE MAJUBA FAULT. CASSITERITE OCCURS WIDELY AND UNEVENLY IN MANY ROCK TYPES IN THE MINE, BUT IS ECONOMICALLY CONCENTRATED IN SOME RUBBLY, VUGGY BRECCIA (ABOUT 20X20X10 FT.) NEAR THE MAJUBA FAULT, IN THE ZONE OF SUPERGENE ENRICHMENT OF COPPER. IT IS SUGGESTED (BY SMITH AND GIANELLA, 1942) THAT THE TIN AND COPPER DEPOSITS WERE FORMED EITHER DURING TWO SEPARATE PERIODS OF MINERALIZATION OR DURING TWO DISTINCT PHASES OF A SINGLE PERIOD OF MINERALIZATION. THE URANIUM DEPOSIT (METAZEUNERITE) OCCURS IN A 3-FOOT-WIDE CU AND SN BEARING VEIN IN THE SOUTH PART OF THE COPPER STOPE. TRITES AND THURSTON (1958) BELIEVE THE METAZEUNERITE WAS DERIVED FROM THE OXIDATION OF A PRIMARY URANIUM MINERAL, EITHER URANINITE OR COFFINITE, DEPOSITED WITH THE PRIMARY SULFIDE MINERALS AND SUBSEQUENTLY MOVED DOWNWARD TO COMBINE WITH THE COPPER TO FORM THE SECONDARY URANIUM
  • MINERAL IN THE ZONE OF SUPERGENE ENRICHMENT. THE WALLROCKS ARE TOURMALINIZED AND CUT BY CHALCOPYRITE BEARING TOURMALINE STOCKWORK VEINLETS. THE MAIN CU STOPE CONTAINS CHALCOCITE-RICH PODS 1-10 INCHES, WITH CENTERS OF PYRITE, CHALCOPYRITE, AND MINOR ENARGITE, SURROUNDED BY DIGENITE AND CHALCOCITE.THE NURE REPORT ON THE LOVELOCK QUADRANGLE REPORTED A URANIUM OCCURRENCE ON THE SECOND LEVEL ADIT ON THE SOUTH FAC-E OF MAJUBA HILL, ABOUT 600-800 FT FROM THE MOUTH OF THE SECON-D LEVEL ADIT. THEY ALSO REPORTED A 3-FT WIDE ZONE OF 0.30 % U3-08 IN A COPPER CHUTE AREA WHICH WAS MINED OUT EARLIER WITH THE- COPPER. TWO OF THEIR SAMPLES FROM THE SECOND LEVEL ADIT RAN 1-65 AND 179 PPM U308 RESPECTIVELY (SAMPLES MEX 073 AND MEX 074)

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1907
Year of first production 1914

Mining district

District name Antelope District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Greenan-Kerr Tin Co.
  • Type Owner
    Owner Jumbo Mining Co.
    Home office Seabrook,Texas.

Production statistics

  • Year 1919
    Period 1916-1919
    Material ORE CU
    Accuracy Accurate
    Description Cp_Grade: ^12% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 12wt-pct
  • Year 1942
    Material SN
    Accuracy Estimate
    Description Ap_Grade: ^2-4% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Tin Tin 3wt-pct
  • Year 1942
    Material CU
    Accuracy Estimate
    Description Ap_Grade: ^4% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 4wt-pct
  • Year 1943
    Material ORE SN
    Accuracy Accurate
    Description Ap_Grade: ^2-4% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Tin Tin 3wt-pct
  • Year 1971
    Period 1914-1971
    Material CU
    Accuracy Estimate
    Description Cp_Grade: ^2-4% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Tin Tin 3wt-pct

Comments on the reserve resource information

  • ONLY VERY SMALL RESERVES OF KNOWN CU AND SN ORE REMAIN. RECENT EXPLORATORY DRILLING INDICATES POSSIBLE ADDITIONAL RESERVES.

Workings at the site

  • Type of workings Underground
    Length 621.79M
    Overall depth 106.68M

Comments on the workings information

  • 3 TUNNELS

Comments on development

  • MINE WAS NOT OPERATING AT TIME OF EXAMINATION IN 1984, ALTHOUGH IT APPEARED TO BE IN FAIR CONDITION. CASSITERITE F-LOAT WAS DISCOVERED IN 1907 BUT TIN WAS NOT FOUND UNDERGROUND -UNTIL 1914.

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    TRITES, A.F., JR., AND THURSTON, R.H., 1958, GEOLOGY OF MAJUBA HILL, PERSHING CO., NEV: USGS BULL. 1046-I P. 183 -203.

  • Deposit

    STEVENS, D.L., 1971, THE GEOLOGY AND ORE DEPOSITS OF THE ANTELOPE (MAJUBA HILL) MINING DISTRICT, PERSHING CO., NEVADA: MS THESIS, UNIV. OF NEV, RENO.

  • Deposit

    SMITH, W.C. AND GIANELLA, V.P., 1942, THE TIN DEPOSIT OF MAJUBA HILL, PERSHING COUNTY, NEV: USGS BULL. 931-C, P. 39

  • Deposit

    VANDERBURG, W.O., 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; US. BUREAU OF MINES INF. CIRC. 6902.

  • Deposit

    SOUTHERN PACIFIC CO., 1964, MINERALS FOR INDUSTRY-NORTHERN NEVADA AND NORTHWESTERN UTAH, SUMMARY OF GEOLOGICAL SURVEY OF 1955-1961, V.1: SAN FRANCISCO, SOUTHERN PACIFIC CO., P. 14.

  • Deposit

    MACKENZIE AND BOOKSTROM, 1976, GEOLOGY OF THE MAJUBA HILL AREA, PERSHING COUNTY, NEVADA; NBMG BULL. 86.

  • Deposit

    SCHILLING, 1962, MOLYBDENUM IN NEVADA; NBMG REPORT 2

  • Deposit

    QUADE, JACK, 1984, FIELD EXAMINATION, 9/14/84.

  • Deposit

    GARSIDE, L. J., 1973, NBMG BULL 81, P. 95-96.

  • Production

    MACKENZIE AND BOOKSTROM, 1976; JOHNSON, 1977

  • Reserve-Resource

    JOHNSON, 1977.

General comments

Subject category Comment text
Deposit THE MAJUBA HILL MINE OPERATED BY MASON VALLEY MINES CO., SHIPPED 4,000 TONS OF 12% CU ORE BETWEEN 1916-1919. IN 1943 THE MAJUBA MINE WAS REACTIVATED BY THE GREENAN-KERR TIN MINE CO. AND MINED 350 TONS OF ORE WITH 2-4% SN. BETWEEN 1943 AND 1945 THE MINE PRODUCED CU AND SN CONTAINING AU, AG AND PB, VALUED AT MORE THAN $275,000. ONLY A SMALL QUANTITY OCU HAS BEEN MINED SINCE THEN. DEVELOPED BY 3 TUNNELS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Harner, Joy L. (Roberts, Ralph J.) Nevada Bureau of Mines and Geology
Updater 01-JUL-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology CHECKED AND MODIFIED ROCK TYPE, ROCK UNIT AND AGES FIELDS.
Updater 06-NOV-1992 Li, Zhiping (Peters, S.) U.S. Geological Survey
Editor 01-SEP-1994 Mosier, Dan 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

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