NBMG Sample Site 491

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

Name: NBMG Sample Site 491  

State:  Nevada

County:  Humboldt

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.


Satelite image of the NBMG Sample Site 491

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

Gold Districts of Nevada

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.