Bradley Mine

The Bradley Mine is a antimony mine located in Pershing county, Nevada at an elevation of 5,761 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: Bradley Mine
Secondary: Rye Patch No. 3
Secondary: Panther Canyon
Secondary: NBMG Sample Sites 2568, 2569

Commodity

Primary: Antimony
Secondary: Gold
Secondary: Silver
Tertiary: Zinc
Tertiary: Lead

Location

State: Nevada
County: Pershing
District: Rye Patch District

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.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Year: 1932
Material type: ORE SB
Description: Ap_Grade: ^18% Sb

Deposit

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

Physiography

Not available

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Form: PODS, STRINGERS

Structure

Type: L
Description: Shear Zone

Alterations

Alteration Type: L
Alteration Text: Silicification; Some Argillization; Sericitization

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Analytical Data

Analytical Data: 17.47% SB. 0.80 OZ/TON AG TRACE AU FROM 4" VEIN. SAMPLE 2568, DUMP SELECT OF SILICIED RHYOLITE WITH STIBNITE AND QUARTZ, CONTAINS 1 % FE, 0.03 % MG, 0.2 % CA, 0.-005 % TI, 10 PPM MN, 20 PPM AG, 2000 PPM AS, 0.2 PPM AU (BY AA- ANALYSIS, 50 PPM B, 150 PPM CU, 500 PPM PB, +10000 PPM SB, 20-0 PPM ZN. SAMPLE 2569, DUMP SELECT OF SILICIFIED RHYOLITE WITH- QUARTZ, PYRITE, SPHALERITE AND TOURMALINE, CONTAINS 5 % FE, 0-.5 % MG, 0.05 % CA, 0.05 % TI, 50 PPM MN, 500 PPM AG, +2000 PP-M B, 50 PPM BA, 1 PPM BE, +1000 PPM BI, +500 PPM CD, 150 PPM C-U, 10 PPM NI, 2000 PPM PB, 5000 PPM SB, 10 PPM Y, +10000 PPM Z-N, 150 PPM ZR, AND 0.85 PPM AU (BY AA ANALYSIS).

Materials

Ore: Stibnite
Ore: Sphalerite
Ore: Jamesonite
Ore: Gold
Gangue: Pyrite
Gangue: Tourmaline
Gangue: Quartz

Comments

Comment (Location): MAY BE PART OF PANTHER CANYON MINE GROUP. ACCESSIBLE BY POOR ROADS WASHED OUT AT MOUTH OF CANYON.; PREVIOUS QUAD DESIGNATION = UNIONVILLE (1954) 1:625000

Comment (Production): 16 TONS ORE CONTAINING 18% SB IN 1932? (MAY HAVE COME FROM PANTHER CANYON MINE)

Comment (Deposit): A SHEAR ZONE FOLLOWS A DIABASE DIKE WITH THIN-BEDDED LIMESTONE OF THE STAR PEAK FORMATION FORMING THE NORTHWEST WALL OF THE DIKE AND RHYOLITE OF THE KOIPATO FORMATION FORMING THE SOUTHEAST WALL. THE SHEAR ZONE CONTAINS GOUGE, SMALL STRINGERS AND PODS OF QUARTZ, AND SMALL PODS AND STRINGERS OF STIBNITE WITHIN THE QUARTZ. THE AREA JUST DESCRIBED ARE THE WORKINGS AT THE BOUNDARY OF SEC 23 & 24 IN SHALEY LIMESTONE CUT BY A DIABASE SILL-. NO MINERALIZATION WAS NOTED ON THE DUMPS ON THE NORTH SIDE O-F THE CANYON. THE MAIN ANTIMONY MINE IS IN THE CENTER OF SEC 2-4 IN ROCHESTER RHYOLITE. THE QUARTZ VEIN STRIKES N30E, DIP 45 -SE AND CONTAINS ABUNDANT STIBNITE AND SB OXIDES. SOME HAND-SOR-TED ORE IS IN BARRELS ON DUMP. ABOUT 50 METERS TO THE EAST IS -ANOTHER ADIT NOW CAVED WHICH EXPLORES A N50W-TRENDING MINERALI-ZED FAULT ZONE WHICH DIPS 35 SW. VEIN QUARTZ ON THE DUMP CONTA-INS BANDS OF TOURMALINE, PYRITE, SPHALERITE, AND SOME JAMESONI-TE? THE RHYOLITE IS SILICIFIED AND SERICITIZED. THE TWO

Comment (Deposit): STRUCT-URES ARE IN CLOSE PROXIMITY BUT HAVE SIGNIFICANTLY DIFFERENT O-RE MINERALS.; MODEL NAME COULD ALSO BE: SIMPLE SB.

Comment (Workings): PROSPECT IS DEVELOPED BY A SHORT ADIT AND WINZE. ADIT IS NOW FILLED WITH WATER.

Comment (Geology): SHEAR ZONE CONTAINS GOUGE, SMALL STRINGERS & PODS OF QUARTZ, & SMALL PODS & STREAKS OF STIBNITE WITHIN THE QUARTZ

Comment (Deposit): PROSPECT IS DEVELOPED BY A SHORT ADIT AND WINZE. A SHEAR ZONE FOLLOWS A DIABASE DIKE (LIKE THAT AT PANTHER CANYON MINE) WITH THIN-BEDDED LIMESTONE OF THE STAR PEAK FORMATION FORMING THE NORTHWEST WALL OF DIKE AND RHYOLITE OF KOIPATO FORMATION FORMING THE SOUTHEAST WALL. ADIT IS NOW FILLED WITH WATER. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

References

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

Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING CO., NEV. BUREAU OF MINES BULL. 89

Reference (Deposit): BONHAM, H. F., JR., 27 SEP 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3.

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.