The J and B Mine is a gold mine located in Pershing county, Nevada.
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.
J and B Mine MRDS details
Site Name
Primary: J and B Mine
Secondary: NBMG Sample Site 1493
Commodity
Primary: Gold
Secondary: Silver
Location
State: Nevada
County: Pershing
District: Seven Troughs 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
Owner Name: North Pole Mining And Milling Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Model Name: Epithermal vein, Comstock
Orebody
Form: TABULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Silicification
Rocks
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Analytical Data: SAMPLE 1493 CONTAINS 15 % FE, 1.5 % MG, 5 % CA, +1 % TI, 700 PPM MN, 100 PPM AG, 500 PPM AS, 20 PPM B, 5000 PPM BA, 3 PPM BE, 50 PPM CO, 50 PPM CR, 50 PPM CU, 300 PPM MO, 20 PPM NI, 150 PPM PB, 100 PPM SB, 30 PPM SC, 500 PPM SR, 200 PPM V, 50 PPM Y, 300 PPM ZN, 150 PPM ZR, AND 2.6 PPM AU, BY AA ANALYSIS.
Materials
Ore: Gold
Ore: Silver
Gangue: Pyrite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Deposit): LOWER (SW) SHAFT COLLARED IN GREENISH AND PURPLE ANDESITE MUD FLOW. UPPER (NE) SHAFT COLLARED IN THIN-BEDDED RHYOLITE FLOW. A FINE-GRAINED DARK GREENISH-BROWN DIKE FOLLOWS SHEAR ZONE TREND, AND MINERALIZATION MAY OCCUR AT ITS CONTACT WITH FLOW ROCKS. MINOR SILICIFICATION ALONG STRUCTURE. SOME CALCITE VEINING, NO QUARTZ SEEN ALONG ZONE, BUT ROCK IN DUMP HAS PODS AND STRINGERS OF CLEAR QUARTZ WITH DISSEMINATED PYRITE.
Comment (Workings): DEVELOPED BY 3 SHAFTS, TUNNEL, TRENCH, 3 CUTS, CROSSCUTS, DRIFTS. 5 VERTICAL SHAFTS ALONG STRIKE OF SHEAR ZONE, MILL BUILDING SHELL, REMAINS OF CAMP.
Comment (Deposit): DEVELOPED BY 3 SHAFTS, TUNNEL, TRENCH, 3 CUTS, CROSSCUTS AND DRIFT. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV
Comment (Location): UTM APPROXIMATE
References
Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULLETIN 89.
Reference (Deposit): TINGLEY, J.V., 7 JUN 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.
Reference (Production): JOHNSON, M.G.
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.
