NBMG Sample Site 2605

The NBMG Sample Site 2605 is a silver mine located in Humboldt county, Nevada at an elevation of 6,759 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: NBMG Sample Site 2605

Commodity

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

Location

State: Nevada
County: Humboldt
District: Spring City District; Paradise Valley District; Mount Rose District

Land Status

Land ownership: National Forest
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
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Epithermal vein, Comstock

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Kaolinization Of Rhyolite

Rocks

Not available

Analytical Data

Analytical Data: SAMPLE 2605 OF QUARTZ VEIN MATERIAL WITH OXIDE CU STAIN CONTAINS 0.2 % FE, 0.02 % MG, 0.002 % TI, 150 PPM AG, 15 PPM B, 500 PPM CU, 5 PPM MO, 5 PPM NI, 700 PPM PB, 500 PPM SB, 10 PPM V, AND 0.25 PPM AU (BY AA ANALYSIS).

Materials

Ore: Tetrahedrite
Gangue: Quartz
Gangue: Iron

Comments

Comment (Deposit): MASSIVE WHITE QUARTZ VEIN ROLLS ALONG STRIKE AND DIP TO CONFORM TO CLEAVAGE PLANES IN KNOTTED SCHIST WALLROCK, WHICH IS CARBONACEOUS. APLITE DIKE IN HANGING WALL OF VEIN AT WESTERN EXPOSURE . VEIN IS 15-20 FT THICK, AND HAS PARALLEL VEINLETS IN BOTH WALLS. OPEN VUGS IN VEIN LINED WITH TERMINATE CLEAR QUARTZ CRYSTALS, STREAKS AND CLOTS OF WALLROCK IN VEIN; IRON-OXIDE STAIN AND SOME GREEN AND BLUE CU STAIN. AT MAIN VEIN EXPOSURES IN INCLINES, VEIN IS N70-80W, 30-40 NE. PARTS OF THE VEIN ON FOOTWALL ARE BRECCIATED AND RECEMENTED WITH DARK, CLEAR QUARTZ. DOWN THE NOSE OF THE RIDGE, SSW OF SITE 2605, OTHER PARALLEL QUARTZ LENSES CROP OUT, A N20E, 50 SE PLUG FOLLOWS VEIN ON WEST, AND OTHER MASSES OF THE RHYOLITE CROP OUT ON THE SLOPE TO THE WEST. A THIN SECTION OF THE DIKE ROCK SHOWED IT TO BE KAOLINIZED AND VEINED WITH SILICA.

Comment (Workings): SEVERAL ADITS, INCLINES, CUTS ALONG STRIKE OF VEIN SYSTEM.

Comment (Location): HIGHEST SHAFT ON RIDGE SEPARATING DRY CREEK AND SPRING CITY CREEK. ; INFO FROM LAND.ST :(1972)

Comment (Development): PROBABLY ONE OF THE ORIGINAL DISCOVERY SITES IN DISTRICT (1868), IN ORIGINAL MOUNT ROSE DISTRICT. NO ACTIVITY WHEN VISITED IN 1984.

References

Reference (Deposit): TINGLEY, J. V., 5 SEP 84, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSIS.

Reference (Deposit): WILLDEN, R., 1964, NBMG BULL 59, PL. I.

Reference (Deposit): LINDGREN, W., 1915, USGS BULL 601, P. 12.

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.