Dry Hills Manganese Prospect

The Dry Hills Manganese Prospect is a manganese mine located in Humboldt county, Nevada.

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: Dry Hills Manganese Prospect
Secondary: NBMG Sample Site 2620

Commodity

Primary: Manganese
Tertiary: Vanadium
Tertiary: Copper
Tertiary: Barium-Barite

Location

State: Nevada
County: Humboldt
District: Potosi District

Land Status

Land ownership: Private
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

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Model Name: Volcanogenic Mn

Orebody

Form: LENSES, PODS, STRINGERS

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: NBMG SAMPLE 2620 OF MNO-RICH JASPEROID, PYROLUSITE, LACED WITH SILICA VEINLETS, A WHITE QUARTZ MICROBRECCIA CEMENT-ED WITH PYROLUSITE AND CLEAR QUARTZ, HAVING SOME VUGS LINED WI-TH CLEAR QUARTZ CRYSTALS, CONTAINS 2 % FE, 0.2 % MG, 0.3 % CA,- 0.02 % TI, +5000 PPM MN, 5 PPM AG, 50 PPM B, +5000 PPM BA, 15-0 PPM CO, 500 PPM CU, 15 PPM MO, 150 PPM NI, 20 PPM PB, 150 P-PM SN, 500 PPM SR, 700 PPM V, 200 PPM ZN, 20 PPM ZR.

Materials

Ore: Pyrolusite
Gangue: Quartz

Comments

Comment (Location): EXACT LOCATION UNCERTAIN.

Comment (Deposit): LENSES AND STRINGERS OF PYROLUSITE ALONG BEDDING IN SILICIFIED CHERT AND ARGILLITE. N20W VERTICAL SHEAR ZONE CUTS -N20E BEDDING, N20E STEEP FRACTURE ZONE. MANGANESE OXIDES AND B-LACK TO BROWN JASPEROID APPEAR TO BE ASSOCIATED WITH THE NW ST-RUCTURE AS MOST BEDDING REPLACEMENT OCCURS ALONG IT; ROCK IN A-REA OF STRUCTURAL INTERSECTION LACED WITH SILICA VEINLETS. MAS-SIVE PODS OF JASPEROID OCCUR IN EAST WALL OF PIT; SOFTER, GOSS-ANY MNO REPLACEMENT ALONG BEDDING TO WEST OF JASPEROID. IT IS -POSSIBLE THAT THE JASPEROID FORMED ALONG THE STEEP FAULT INTER-SECTION. CRYSTALLINE PYROLUSITE COATS FRACTURES IN JASPEROID; -ROCKS IN DUMPS APPEAR TO BE MASSIVE PYROLUSITE, BUT ONLY SURFA-CE COATING IS PRESENT.

Comment (Workings): 20-FT BY 20-FT PIT, LOADING RAMP, CUTS, BUILDING RUINS.

Comment (Geology): MANGANESE OXIDES PARTIALLY REPLACE CHERT BEDS INTERBEDDED WITH QUARTZITE

References

Reference (Deposit): TINGLEY, J. V., 7 SEP 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3

Reference (Deposit): HOTZ, P.E., AND WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF THE OSGOOD MOUNTAINS QUADRANGLE; U.S.G.S. PROF. PAPER 431.

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

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.