Niebuhr Mine

The Niebuhr Mine is a mercury mine located in Humboldt county, Nevada at an elevation of 5,440 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: Niebuhr Mine
Secondary: Sunset-Big Four Group
Secondary: NBMG Sample Site 2436

Commodity

Primary: Mercury

Location

State: Nevada
County: Humboldt
District: Bottle Creek 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

Owner Name: Thomas C. Niebuhr

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1941
Discovery Year: 1939
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Hot-spring Hg

Orebody

Form: TABULAR

Structure

Type: R
Description: N-Trending, Steep-Dipping Faults

Type: L
Description: Faults Strike N55-70e, Dip 65-90 Sw.

Alterations

Alteration Type: L
Alteration Text: Silicified Rhyolite

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Pliocene

Analytical Data

Analytical Data: SAMPLE 2436 CONTAINS 3 % FE, 0.03 % MG, 0.05 % CA, 0.05 % TI, 70 PPM MN, 0.5 PPM AG, 700 PPM AS, 30 PPM B, 100 PPM- BA, 2 PPM BE, 10 PPM CR, 50 PPM CU, 5 PPM NI, 20 PPM PB, 500 -PPM SB, 15 PPM V, 10 PPM Y, 100 PPM ZR.

Materials

Ore: Cinnabar

Comments

Comment (Deposit): CINNABAR WAS DISCOVERED BY T.C. NIEBUHR IN 1939, AND 19 FLASKS OF HG WERE RECOVERED BY THE END OF 1941, USING A 2-PIPE RETORT. THE PROPERTY WAS NOT BEING WORKED IN 1943. THE PROPERTY WAS DEVELOPED BY A 60-FT. INCLINED SHAFT AND SEVERAL OPEN CUTS. "SOLID CINNABAR 'BUNCHES' WEIGHING AS MUCH AS TWO POUNDS" HAVE BEEN REPORTED FOUND IN THE FAULT ZONE. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Comment (Workings): SHAFT, OPENCUTS. REMAINS OF DILAPIDATED SHACK. OPEN SHAFT UPHILL FROM IT APPROXIMATELY 150 YARDS. SHAFT IS OPEN AND VERTICAL, MAY-BE 50-75 FT DEEP. SUPPOSED TO BE A SHAFT ALONG ROAD BUT IT WAS- NOT SEEN IN 1984; IT MAY BE CAVED. FEW OPEN CUTS ON HILLS TO -SOUTH OF SHAFT AND 2 SHAFTS OVER RIDGE TOP TO WNW OF NIEBUHR M-INE, BUT THESE WERE NOT VISITED IN 1984.

Comment (Geology): A DIABASE DIKE OUTCROPPING 100 FT FROM OPEN CUT WARRANTS FURTHER INVESTIGATION-

Comment (Location): ON NE SLOPE OF BUFF PEAK; PREVIOUS QUAD DESIGNATION = BOTTLE CREEK (1961) 1:625000

Comment (Commodity): ONE FLASK PER 5 TONS

Comment (Deposit): OPEN CUT 1400 FEET NW OF SHAFT PHYLLITE/SHEAR ZONE; CINNABAR AND IRON OXIDES IN BLEACHED AND HIGHLY FE-STAINED RHYOLITE.

References

Reference (Deposit): ROBERTS, R.J., 1940, QUICKSILVER DEPOSITS OF THE BOTTLE CREEK DISTRICT, HUMBOLDT CO., NEV; USGS. BULL. 922-A

Reference (Deposit): BAILEY, E.H. AND PHOENIX, D.A., 1944, QUICKSILVER DEPOSITS IN NEVADA; NEV. BUREAU OF MINES BULL. 41.

Reference (Deposit): WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT CO., NEV.; NEV. BUREAU OF MINES BULL. 59

Reference (Deposit): WILLDEN, 1963, GENERAL GEOLOGY OF THE JACKSON MOUNTAINS, HUMBOLDT COUNTY, NEVADA: USGS BULL. 1141 - D

Reference (Deposit): 5) HOLMES, G.W., JR., 1965, MERCURY IN NEVADA: USBM IC 8252

Reference (Deposit): JONES, R. B., 1984, NBMG FIELD EXAMINATION, 9-14-84.

Reference (Production): BAILEY, E.H., AND PHOENIX, D.A., 1944

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.