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
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.
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.
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.
