The Sierra Magnesite Mine is a magnesite mine located in Nye county, Nevada at an elevation of 5,801 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
Elevation: 5,801 Feet (1,768 Meters)
Commodity: Magnesite
Lat, Long: 38.86667, -117.88333
Map: View on Google Maps
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.
Sierra Magnesite Mine MRDS details
Site Name
Primary: Sierra Magnesite Mine
Secondary: Betty O'Neal Pit, Greenstone Pit, June 1 Pit, June 2 Pit, Capella Pit,
Secondary: Duplex Pit, Bluestone Claim
Secondary: No. 1 & No. 2 Claims, Share Crop.
Commodity
Primary: Magnesite
Secondary: Tungsten
Secondary: Gold
Secondary: Silver
Secondary: Lead
Tertiary: Copper
Location
State: Nevada
County: Nye
District: Gabbs District
Land Status
Land ownership: National Forest
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
Owner Name: Basic, Inc.
Production
Year: 1956
Time Period: 1954-1956
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Paradise Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: The Luning Formation Is The Upper Plate Of The Paradise Thrust Fault.
Alterations
Alteration Type: L
Alteration Text: The Dolomite Has Been Altered By Thermal And Dynamothermal Metamorphism.
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Magnesite
Ore: Scheelite
Ore: Sphalerite
Gangue: Forsterite
Gangue: Limonite
Gangue: Calcite
Gangue: Talc
Gangue: Serpentine
Comments
Comment (Production): SEVERAL EARLY REPORTS STATE THAT HIGH GRADE W ORE WAS PRODUCED IN THE EARLY 1920'S BUT THERE IS NO RECORD OF THIS PRODUCTION
Comment (Development): EXPLORED BY NUMEROUS SHALLOW PITS, 50 FT. DEEP SHAFTS, 400 FT. LONG DRIFT ADIT. MOST WORK DONE BETWEEN 1927-1928 BY NEVADA-MASSACHUSETTS COMPANY. VEIN-BEARING SCHEELITE DISCOVERED IN 1926; LARGE BRUCITE/MAGNESITE DEPOSITS (FOR WHICH GABBS DISTRICT IS FAMOUS) DISCOVERED IN 1927. MUCH OF SCHEELITE IS HIGH-GRADE. GOLD AND SILVER HAVE BEEN KNOWN FROM THE IMMEDIATE AREA, BUT NOT NECESSARILY FROM THE SCHEELITE-BEARING VEIN. GOLD AND SILVER WERE ASSAYED FROM THE NEARBY, PERIPHERAL HILL SLOPES AND BEDROCK, I.E., THE WEST SIDE OF THE MOUNTAIN (TINGLEY, 1990, PERS. COMM.). THEY HAVE NOT BEEN DIRECTLY (GENETICALLY?) ASSOCIATED WITH THE DEVELOPMENT OF, OR FOUND WITHIN THE BRUCITE OR MAGNESITE DEPOSITS.
Comment (Workings): OPEN PIT.
Comment (Deposit): SCHEELITE OCCURS IN A VEIN COMPOSED MOSTLY OF LEUCHTENBERGITE; AND QUARTZ THAT CUTS MAGNESITE AND SOLOMITE. SCHEELITE OCCURS IN SMALL PODS AND ORE SHOOTS.
References
Reference (Deposit): LEMMON, D.M., UNPUBLISHED DATA.
Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.
Reference (Deposit): NBMG BULL. 105, STAGER H.K. AND TINGLEY, J.V. (IN PREP. JAN. 1984)
Reference (Deposit): CALLAGHAN, E, 1933, BRUCITE DEPOSIT=NBMG BULL. 19 (OLD VOLUME 27, PRIOR TO NUMBERING REVISION AS NBMG BULLETINS).
Reference (Deposit): SCHILLING, JH, 1968, THE GABBS MAGNESITE-BRUCITE DEPOSITS IN RIDGE, J.D. (EDITOR), ORE DEPOSITS OF THE U.S., 1937-1967, V. 2, GRATON-SALES VOLUME, NEW YORK, AIMMPE, P. 1607-1622.
Reference (Production): KLEINHAMPL, 1980; NBMG BULL. 105, STAGER, H.K. AND TINGLEY, J.V. (IN PREP. JAN. 1984)
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.
