Macbruson Claims Claims

The Macbruson Claims Claims is a molybdenum and tungsten mine located in Lincoln county, Nevada at an elevation of 3,301 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: Macbruson Claims Claims
Secondary: Bruson Prospect
Secondary: NBMG Sample Sites 1449, 1450

Commodity

Primary: Molybdenum
Primary: Tungsten
Secondary: Gold
Secondary: Silver

Location

State: Nevada
County: Lincoln
District: Gourd Springs District 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

Not available

Mineral Deposit Model

Model Name: W skarn

Orebody

Not available

Structure

Type: R
Description: Thrust Fault (Plate Composed Of Penn Limestone)

Type: L
Description: Normal Faults Along E Flank Of Range

Alterations

Not available

Rocks

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: SEMIQUANTITATIVE SPECTRO GRAPHIC ANALYSIS (BY TSCHANTZ & PAMPEYAN): GREATER THAN 10% SI, AL, CO, 7% FE, 1.5% MG, NA, TI, .4 W, .3 MN, .15 SR, BA, BE, V, ZR, AND .007 BI, NB, SR, Y. COMPOSITE SAMPLE BY US BUR. MINES CONTAINED 1.08% WO3. NBMG SAMPLES 1449 AND 1450 CONTAIN, RESPECTIVELY, 2000 PPM MN, 0 AND 100 PPM AG, 0 AND 300 PPM AU, 100 AND 0 PPM B, 200 AND 100 PPM BA, 7 AND 150 PPM BE, 0 AND 200 PPM MO, 100 AND 70 PPM PB, 0 AND 100 PPM SB, 300 AND 0 PPM SN, 500 AND 100 PPM SR, 700 AND 0 PPM V, 1000 AND 10 000 PPM W. NBMG SAMPLES 1449 AND 1450 CONTAIN, RESPECTIVELY, 2000 PPM MN, 0 AND 100 PPM AG, 0 AND 300 PPM AU, 100 AND 0 PPM B, 200 AND 100 PPM BA, 7 AND 150 PPM BE, 0 AND 200 PPM MO, 100 AND 70 PPM PB, 0 AND 100 PPM SB, 300 AND 0 PPM SN, 500 AND 100 PPM SR, 700 AND 0 PPM V, 1000 AND 10 000 PPM W.

Materials

Ore: Molybdenite
Ore: Powellite
Ore: Scheelite
Gangue: Tourmaline
Gangue: Muscovite
Gangue: Garnet
Gangue: Epidote
Gangue: Idocrase

Comments

Comment (Deposit): CLOTS AND STRINGERS OF SCHEELITE AND POWELLITE IN SKARN. QUARTZ PEGMATITE ALSO CARRIES FINE SPRAYS AND CLOTS OF MOLYBDENITE AND OXIDIZED PYRITE CRYSTALS. LATE STAGE OPALINE SILICA COATS ROCKS. GARNETIFEROUS PHYLLITE/ SCHIST IN FLOAT. INTRUSIVE DIKES (N30E, 30 NW) ARE INTENSELY FRACTURED AND CRUSHED AT EXPOSED BASE (OR LOWEST UNIT). THIN QUARTZ VEINLETS 0.5-1 FT WIDE ALSO CARRY SCHEELITE. A THIN TACTITE ZONE ABOUT 200 FT LONG BORDERS THE GRANITE PEGMATITE, WHICH ALSO CONTAINS SMALL AMOUNTS OF SCHEELITE.

Comment (Workings): REMAINS OF STONE CABINS, OLD HAULAGE ROADS, MINOR PROSPECT PITS, NUMEROUS CUTS, 20-FT SHAFT, ALL IN A 200-FT SQUARE AREA. NO UNDERGROUND WORKINGS NOTED IN 1983.

Comment (Deposit): DISTRICT UNORGANIZED ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Geology): DISSEMINATED SCHEELITE IN AMPHIBOLITE NEAR LARGE PEGMATITE BODIES

Comment (Development): 28 CLAIMS. INTERMITTENTLY EXPLORED IN 1920'S. NO ACTIVITY AT TIME OF EXAMINATION IN 1983.

Comment (Location): AREA UNSURVEYED, UTM'S PROBABLY ACCURATE

References

Reference (Deposit): TSCHANTZ PAMPEYAN, 1970, GEOLOGY & MINERAL DEPOSITS OF LINCOLN CO., NEV BUR MINES BULL 73

Reference (Deposit): SMITH, P. AND BENTZ, J.,1983, FIELD EXAMINATION REPORT, AUG 29, 1983.

Reference (Deposit): STAGER, H. K., MANUSCRIPT IN PREPARATION ON TUNGSTEN IN NEVADA.

Reference (Deposit): MORMON MOUNTAINS G-E-M RESOURCES AREA TECHNICAL REPORT, FOR BLM, 1983.

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.