Freiberg Tungsten Prospect

The Freiberg Tungsten Prospect is a tungsten mine located in Lincoln county, Nevada at an elevation of 6,401 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: Freiberg Tungsten Prospect
Secondary: NBMG Sample Location 1767?

Commodity

Primary: Tungsten
Secondary: Molybdenum
Tertiary: Manganese

Location

State: Nevada
County: Lincoln
District: Freiberg 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: W skarn

Orebody

Form: IRREGULAR TO TABULAR

Structure

Type: L
Description: Fault?

Alterations

Not available

Rocks

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Ordovician

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Ordovician

Analytical Data

Analytical Data: GRADE IS ESTIMATED AT LESS THAN 0.4% WO3. NBMG SAMPLE 1767 FROM THIS AREA CONTAINED 3000 PPM MN, 200 PPM AS, 500 PPM B, 700 PPM BA, 70 PPM BI, 150 PPM CU. 150 PPM MO, 200 PPM PB, 500 PPM SR, 5000 PPM W, 1000 PPM ZN, 200 PPM ZR.

Materials

Ore: Scheelite
Gangue: Calcite
Gangue: Epidote

Comments

Comment (Development): NO ACTIVITY AT TIME OF EXAMINATION IN 1983. TRENCHING WAS PROBABLY 5-10 YRS. OLD. BULLDOZER WORK WAS OLDER THAN THAT OBSERVED IN AG EXPLORATION ON E. SIDE OF RANGE.

Comment (Location): NEAR NORTH END OF WORTHINGTON MOUNTAINS ; INFO FROM LAND.ST :1972

Comment (Workings): SHALLOW 30 FT SHAFT, SHORT ADIT TRENDING S75E WITH TRACK AND DUMP STILL REMAINING. SHALLOW TRENCHING AND POSSIBLY DRILL ROADS SURROUND WORKINGS AND EXTEND TO THE SOUTH AND EAST ALONG CONTACT ZONE

Comment (Deposit): SPARSE DISSEMINATED SCHEELITE WITH POSSIBLY SOME WOLFRAMITE IN LIGHT GREEN TACTITE IN THE CONTACT ZONE SURROUNDING THE WESTERN STOCK WHERE LIMESTONE IS IN CONTACT WITH GRANITE. A LARGER AREA OF TACTITE FAVORABLE FOR SCHEELITE DEPOSITS IS PRESENT. WORKINGS FOLLOW 2 FRACTURE ZONES ONE TRENDING N70W, DIP 75 NE AND ONE TRENDING E-W. STEEPLY INCLINED FRACTURE SURFACES IN THE TACTITE ARE COATED BY MASSIVE TO CRYSTALLINE EPIDOTE. FRACTURE OF THE CARBONATES ADJACENT TO THE INTRUSIVE PROVIDED AN AVENUE FOR MINERALIZING FLUIDS. TACTITE COLLECTED FROM THE DUMP IS EPIDOTE-RICH, DENSE,AND CONTAINS COARSE CRYSTALS AND PODS OF WHITE CALCITE. CALCITE COATS FRACTURE SURFACES AND THE ROCK CONTAINS ONLY VERY MINOR FE OXIDES. WHEN LAMPED. THE SAMPLE SHOWED COARSE SCATTERED FLAKES OF SCHEELITE AND POWELLITE, SOME CRYSTALS INTERGROWN OR GRADATIONAL. WOLFRAMITE LEPORTED(NBMG BULL 73) BUT NONE WAS SEEN.

References

Reference (Deposit): BENTZ, J. AND SMITH, P. 1983, FIELD EXAMINATION REPORT, OCT. 2, 1983

Reference (Deposit): STAGER, H.K., BULLETIN IN PREPARATION ON W IN NEVADA.

Reference (Deposit): TSCHANZ, C.M. AND PAMPEYAN, E.H., 1970, NBMG BULL. 73.

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.