Star Mine

Site Name

Primary: Star Mine
Secondary: Griff Nbmg Sample Site 2539, 2540.
Secondary: El Dorado
Secondary: Star Tungsten Mine
Secondary: Sunny Boy, Hebbard;

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Commodity

Primary: Tungsten
Tertiary: Silver
Tertiary: Gold
Tertiary: Antimony
Tertiary: Copper
Tertiary: Iron
Tertiary: Lead
Tertiary: Zinc

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Location

State: Nevada
County: Pershing
District: Imlay District; Humboldt District; Eldorado District

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Land Status

Land ownership: BLM Administrative Area
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.

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Holdings

Not available

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Workings

Not available

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Ownership

Owner Name: Winnemucca Mountain Mines Co
Years: 1957 -

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Production

Year: 1955
Time Period: 1944, 1953-1955
Material type: W03
Description: Cp_Grade: ^Some Ore Ran 6% W03

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

Not available

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Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

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Orebody

Not available

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Structure

Type: L
Description: Cross Faults

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Alterations

Alteration Type: L
Alteration Text: Limestone Has Been Recrystallized. Dikes Completely Altered To Carbonates, Chlorite, And Clay.

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Rocks

Name: Diabase
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic

Name: Diabase
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diabase
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic

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Analytical Data

Analytical Data: SB:11-40%. AU-TRACE. AG-0.94 TO 14 OZ. SOME ORE CONTAINED AS MUCH AS 6 PERCENT W03 BUT MOST AVERAGED 1.0 % W03. SAMPLE 2539 A DUMP SELECT SAMPLE WITH AR-GILLIC AND SILICIC ALTERATION, SULFIDES, CONTAINS 1 % FE, 0.5 -% MG, 2 % CA, 0.03 % TI, 10 PPM MN, 100 PPM AG, 20 PPM B, 150 -PPM BA, 50 PPM CR, 700 PPM CU, 10 PPM MO, 30 PPM NI, 5000 PPM -PB, +10000 PPM SB, 100 PPM SR, 15 PPM V, 500 PPM ZN AND .15 PP-M AU (AA ANALYSIS). SAMPLE 2540, DUMP GRAB OF LIMESTONE WITH S-ERICITE AND SCHEELITE CONTAINS 0.7 % FE, 0.05 % MG, 1 % CA, 0.-1 % TI, 20 PPM MN, 5 PPM AG, 20 PPM B, 100 PPM BA, 1 PPM BE, 5-0 PPM CR, 50 PPM CU, 15 PPM NI, 20 PPM PB, 1000 PPM SB, 20 PPM-V, 200 PPM W, 0.05 PPM AU (AA ANALYSIS).

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Materials

Ore: Stibnite
Ore: Hemimorphite
Ore: Scheelite
Ore: Sphalerite
Ore: Malachite
Ore: Pyrite

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Comments

Comment (Development): ORIGINALLY A AG-PB-CU PROSPECT, THE PROPERTY WAS NOT MINED FOR TUNGSTEN UNTIL THE EARLY 1940'S. IT PRODUCED TUNGST-EN IN 1944, 1953-1956, SINCE WHICH TIME IT HAS BEEN IDLE EXCEP-T FOR NUMEROUS RECENT CLAIMS STAKED OVER THE AREA (1984).

Comment (Deposit): THE LOWER ADIT CONTAINS SCHEELITE; THE UPPER STIBNITE AND TETRABEDRITE. SCHEELITE IS IN LARGE MASSES, 1 TO 3 INCH QUARTZ VEINS AND MINOR SCHEELITE IS DISSEMINATED IN THE LIMESTONE. STIBNITE AND SMALL AMOUNTS TETRAHEDRITE OCCUR IN QUARTZ VEINS IN OR NEAR DIABASE DIKES. DIKES HAVE BEEN COMPLETELY ALTERED TO CARBONATES, CHLORITE, AND CLAY..TUNGSTEN MINERALIZATION OCCURS IN QUARTZ-FILD FAULT BRECCIA ZONE AS PIPE-LIKE SHOOTS. IN A STRIKE DISTANCE OF A-BOUT 150 FT, 3 SMALL ORE SHOOTS WERE MINED FROM 2 RAISES AND A- WINZE. THESE ORE SHOOTS WERE 20-40 FT LONG, 4-10 FT WIDE, AND- 1-4 FT THICK. SOME AG, AU AND CU OCCUR WITH THE ANTIMONY MINE-RALS IN THE UPPER WORKINGS, BUT SCHEELITE WAS FOUND ONLY IN TH-E LOWER WORKINGS. ONE QUARTZ VEIN IN UPPER ADITS TRENDS N60-70-W, DIPS N, UP TO 5 M THICK, INTERSECTED BY A SECOND VEIN OF AB-OUT THE SAME WIDTH, STRIKING N15-20E, DIP STEEPLY WEST; BOTH V-EINS BRECCIATED AND RECEMENTED. MOST VEIN QUARTZ APPEARS BARRE-N.; MODEL NAME COULD ALSO BE: POLYMETALLIC

Comment (Deposit): VEINS.

Comment (Geology): GEOL.COM: SCHEELITE IS IN LARGE MASSES 1 TO 3 IN. IN QUARTZ VEINS AND MINOR SCHEELITE IS DISSEMINATED IN THE LIMESTONE. STIBNITE AND SMALL AMOUNTS TETRAHEDRITE OCCUR IN QUARTZ VEINS IN OR NEAR DIABAE DIKES. DIKES HAVE BEEN COMPLETELY ALTERED TO CARBONATES, CHLORITE, AND CLAY.

Comment (Deposit): WORKINGS INCLUDE A NUMBER OF ADITS AND SHAFTS. MOST OF T SCHEELITE MINED CAME FROM THE LOWER ADITS AND DOES NOT OCCUR WITH STIBNITE. STIBNITE AND SMALL AMOUNTS OF TETRAHEDRITE OCCUR IN THE UPPER ADIT. DIABASE DIKES INTRUDE THE LIMESTONE IN THE AREA. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Location): N SIDE OF ELDORADO CANYON. ACCESSIBLE BY GOOD ROAD FROM ELDORADO CANYON

Comment (Workings): A NUMBER OF ADITS AND SHAFTS; PROSPECT PITS

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References

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

Reference (Deposit): LAWRENCE, 1963, ANTIMONY DEPOSITS OF NEVADA; NBMG BULL. 61

Reference (Deposit): BONHAM, H. F., JR., 31 AUG 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

Reference (Deposit): STAGER, H. K., IN PREPARATION, NBMG BULL ON TUNGSTEN IN NEVADA.

Reference (Production): STAGE, H. K. (IN PREP)

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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.