The NBMG Sample Site 2635 is a silver and gold mine located in Humboldt county, Nevada at an elevation of 4,888 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
Elevation: 4,888 Feet (1,490 Meters)
Commodity: Silver, Gold
Lat, Long: 40.88472, -118.10111
Map: View on Google Maps
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.
NBMG Sample Site 2635 MRDS details
Site Name
Primary: NBMG Sample Site 2635
Commodity
Primary: Silver
Primary: Gold
Secondary: Copper
Secondary: Zinc
Secondary: Lead
Tertiary: Arsenic
Location
State: Nevada
County: Humboldt
District: Mill City District; Central 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
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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: TABULAR
Structure
Type: L
Description: Fractures, Slickensides
Alterations
Alteration Type: L
Alteration Text: Kaolinization Of Wallrock Near Veins; Silication
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: SAMPLE 2635 OF CRUSHED, RECEMENTED WHITE VEIN QUARTZ WITH GREEN ARSENATE (?) FRACTURE COATING CONTAINS 5% FE, .05% MG, 3% CA, 0.07% TI, 1000 PPM MN, 700 PPM AG, 5000 PPM AS, 150 PPM B, 50 PPM BA, 1 PPM BE, 500 PPM CD, 1500 PPM CU, 15 PPM MO, 10 PPM NI, 10000 PPM PB, 1000 PPM SB 20 PPM V, 10 PPM Y, 3000 PPM ZN, 50 PPM ZR. AA ANALYSIS ALSO SHOWS 0.5 PPM AU.
Materials
Ore: Gold
Gangue: Quartz
Gangue: Hematite
Comments
Comment (Location): INFO FROM LAND.ST :(1972)
Comment (Development): INACTIVE IN 1984
Comment (Deposit): WORKINGS EXPLORE QUARTZ VEINS ALONG SHEAR ZONES IN DIORITE AND HORNFELS. EASTERN SHAFT IS IN DIORITE; WESTERN SHAFT HAS DIORITE ON EAST WALL, HORNFELS ON WEST. VEINS ARE MOSTLY WHITE QUARTZ, BUT ARE BRECCIATED AND RECEMENTED WITH QUARTZ AND HEMATITE. WALLROCK KAOLINIZED NEAR VEINS. CLOTS OF PALE GREEN CRYSTALLINE MINERAL (ARSENATE?) COAT FRACTURE SURFACES, SLICKENSIDES ON FAULT SURFACES.
Comment (Workings): 2 VERTICAL SHAFTS, CUTS
Comment (Geology): THE TOP OF THE SMALL HILL AT THE PROSPECT IS UNDERLAIN BY DIORITE, SILICATED ROCKS LIE BOTH EAST AND WEST OF THE DIORITE
References
Reference (Deposit): TINGLEY, J.V., 1984, NBMG FIELD EXAMINATION, 9/21/84
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.
