Minnesota Mine

The Minnesota Mine is a molybdenum mine located in Douglas 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

Name: Minnesota Mine  

State:  Nevada

County:  Douglas

Elevation:

Primary Mineral: Molybdenum

Lat, Long: 39.06889, -119.33417

Map: View on Google Maps


Satelite image of the Minnesota Mine

Minnesota Mine MRDS details

Site Name

Primary: Minnesota Mine
Secondary: NBMG Sample Site # 4424


Commodity

Primary: Molybdenum


Location

State: Nevada
County: Douglas
District: Buckskin


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Standard Slag Co.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1944
Year Last Production: 1971
Years of Production:
Organization:
Significant: N
Deposit Size: L


Physiography

Not available


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Calc-Silicate


Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic


Analytical Data

Analytical Data: IRON ORE AVGS .07% CU


Materials

Ore: Magnetite
Ore: Pyrite
Ore: Chalcopyrite
Gangue: Molybdenite
Gangue: Garnet
Gangue: Epidote


Comments

Comment (Development): ECON.COM: TOTAL PRODUCTION VALUE REPORTED IS $16,736,000. THE FUTURE OF THE MINE AS A POTENTIAL PORPHYRY COPPER DEPOSIT IS A MATTER OF ECONOMICS, AS IT HAS BEEN DETERMINED TO BE A LOW GRADE COPPER DEPOSIT.

Comment (Deposit): THE MAGNETITE OREBODY IS A CONTACT PYROMETASOMATIC DEPOSIT CONSISTING OF MASSIVE MAGNETITE WITH 5-10% PYRITE.

Comment (Workings): LARGE SCALE BUILDING AND PLANT FACILITIES, ASPHALT ROAD THAT CONNECTS MINE TO ELECTRICITY AND TO THE RAIL AT WABUSKA.

Comment (Geology): CHALCOPYRITE REPLACES A THICK, STEEPLY-DIPPING HORIZON IN TRIASSIC DOLOMITES INTRUDED BY A PYRITIC QUARTZ MONZONITE PORPHYRY. ADJACENT BEDS ARE ALTERED TO CALC-SILICATE MINERALS. IN THE WEST WALL OF THE PIT, FLAT LYING QUARTZ VEINLETS AND VERTICAL TO NW VEINLETS CONTAIN DISSEMINATED CHALCOPYRITE AND A LITTLE MOLYBDENITE.


References

Reference (Deposit): MOORE, J.G., 1969, GEOLOGY AND MINERAL DEPOSITS OF LYON, DOUGLAS, AND ORMSBY COUNTIES, NEVADA: NBMG BULL 75.

Reference (Deposit): QUADE, JACK, NBMG SAMPLE SITE # 4424 VISIT, JULY 12,1989.