Majuba Hill Mine

The Majuba Hill Mine is a tin and copper mine located in Pershing county, Nevada at an elevation of 6,250 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Majuba Hill Mine
Secondary: Tin Mine
Secondary: NBMG Sample Sites 2844, 2846

Commodity

Primary: Tin
Primary: Copper
Tertiary: Lead
Tertiary: Uranium
Tertiary: Gold
Tertiary: Silver
Tertiary: Molybdenum
Tertiary: Arsenic

Location

State: Nevada
County: Pershing
District: Antelope District

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Jumbo Mining Co.
Home Office: Seabrook,Texas.

Owner Name: Greenan-Kerr Tin Co.

Production

Year: 1943
Material type: ORE SN
Description: Ap_Grade: ^2-4% Sn
Year: 1942
Material type: SN
Description: Ap_Grade: ^2-4% Sn
Year: 1942
Material type: CU
Description: Ap_Grade: ^4% Cu
Year: 1919
Time Period: 1916-1919
Material type: ORE CU
Description: Cp_Grade: ^12% Cu
Year: 1971
Time Period: 1914-1971
Material type: CU
Description: Cp_Grade: ^2-4% Sn

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1914
Discovery Year: 1907
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M

Physiography

Not available

Mineral Deposit Model

Model Name: Climax Mo

Orebody

Form: TABULAR

Structure

Type: L
Description: Majuba Fault

Alterations

Alteration Type: L
Alteration Text: Tourmalinization, Sericitization, Argillization

Rocks

Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Pliocene

Name: Rhyolite
Role: Host
Age Type: Host Rock Unit
Age Young: Pliocene

Name: Rhyolite
Role: Host
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Not available

Materials

Ore: Cuprite
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Malachite
Ore: Chrysocolla
Ore: Cassiterite
Gangue: Pyrite
Gangue: Tourmaline
Gangue: Fluorite
Gangue: Iron

Comments

Comment (Geology): 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)

Comment (Geology): 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

Comment (Location): GOOD ROAD TO BOTTOM OF MOUNTAIN; ACCESS TO WORKING BY FOOT.

Comment (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.

Comment (Workings): 3 TUNNELS

Comment (Reserve-Resource): ONLY VERY SMALL RESERVES OF KNOWN CU AND SN ORE REMAIN. RECENT EXPLORATORY DRILLING INDICATES POSSIBLE ADDITIONAL RESERVES.

Comment (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

References

Reference (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.

Reference (Deposit): MACKENZIE AND BOOKSTROM, 1976, GEOLOGY OF THE MAJUBA HILL AREA, PERSHING COUNTY, NEVADA; NBMG BULL. 86.

Reference (Deposit): SCHILLING, 1962, MOLYBDENUM IN NEVADA; NBMG REPORT 2

Reference (Deposit): QUADE, JACK, 1984, FIELD EXAMINATION, 9/14/84.

Reference (Deposit): GARSIDE, L. J., 1973, NBMG BULL 81, P. 95-96.

Reference (Production): MACKENZIE AND BOOKSTROM, 1976; JOHNSON, 1977

Reference (Reserve-Resource): JOHNSON, 1977.

Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89

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

Reference (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.

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

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

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.