The NBMG Sample Site 491 is a copper and barium-barite mine located in Humboldt county, Nevada at an elevation of 4,987 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: 4,987 Feet (1,520 Meters)
Commodity: Copper, Barium-Barite
Lat, Long: 40.92139, -117.50417
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 491 MRDS details
Site Name
Primary: NBMG Sample Site 491
Commodity
Primary: Copper
Primary: Barium-Barite
Secondary: Antimony
Secondary: Manganese
Location
State: Nevada
County: Humboldt
District: Golconda 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
Type: Surface/Underground
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: Polymetallic veins
Orebody
Form: TABULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian
Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: SAMPLE 491 OF SELECT OXIDE IRON AND COPPER MINERALS FROM PROSPECT PIT CONTAINS 15% FE, 1% MG, 5% CA, 0.1% TI, 2000 PPM MN, 0.5 PPM AG, 1500 PPM AS, 50 PPM B, +5000 PPM BA, 1 PPM BE, 50 PPM CO, +20000 PPM CU, 5 PPM MO, 70 PPM NI, 50 PPM PB, +10000 PPM SB, 7 PPM SC, 1500 PPM SR, 20 PPM V, 15 PPM Y, 100 PPM ZR.
Materials
Ore: Malachite
Ore: Barite
Comments
Comment (Development): INACTIVE IN 1984
Comment (Location): ON SW SIDE OF KRAMER HILL . INFO FROM LAND.ST :(1972)
Comment (Deposit): OXIDE IRON AND COPPER MINERALS OCCUR IN SHEAR ZONE. LIMONITE BOXWORKS, MALACHITE, AND POSSIBLY OTHER OXIDE COPPER MINERALS ARE PRESENT IN MATERIAL FROM A SMALL PIT. SPARSE QUARTZ VEIN MATTER IS ALSO PRESENT. THIS PROSPECT MAY REPRESENT A DIFFERENT TYPE OF MINERALIZATION FROM THAT OBSERVED IN MOST OF THE WORKINGS. IN FACT, THE SHAFT JUST UPHILL FROM THIS PROSPECT IS ALONG IRON-STAINED FRACTURES MUCH LIKE THOSE DESCRIBED FURTHER NORTH (SAMPLE 490).
Comment (Workings): PROSPECT PIT AND SHAFT LESS THAN 10 M DEEP
References
Reference (Deposit): GARSIDE, L.J., 1984, NBMG FIELD EXAMINATION 19 JUN 84, AND SAMPLE ANALYSIS
Reference (Deposit): USGS, 1974, MAP GQ-1174
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.
