The Union Mine is a silver and gold mine located in Storey county, Nevada at an elevation of 5,961 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: 5,961 Feet (1,817 Meters)
Commodity: Silver, Gold
Lat, Long: 39.31667, -119.63833
Map: View on Google Maps
Union Mine MRDS details
Site Name
Primary: Union Mine
Commodity
Primary: Silver
Primary: Gold
Secondary: Lead
Secondary: Copper
Tertiary: Zinc
Tertiary: Iron
Location
State: Nevada
County: Storey
District: Comstock Lode
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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1879
Discovery Year: 1879
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Model Name: Epithermal vein, Comstock
Orebody
Form: TABULAR
Structure
Type: R
Description: Regional Dip To West And Northwest
Type: L
Description: Faults
Alterations
Alteration Type: L
Alteration Text: Oxidation, Propylitization, Pyritization
Rocks
Name: Andesite
Role: Host
Age Type: Associated Rock Unit
Age Young: Miocene
Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Miocene
Name: Andesite
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Argentite
Ore: Sphalerite
Ore: Galena
Ore: Pyrite
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Workings): SHAFT, DRIFTS
Comment (Deposit): THIS MINE PRODUCED CONSIDERABLE ORE FROM THE MAIN COMSTOCK VEIN AT THE 2100-FT LEVEL. AT THE 2500-FT LEVEL, SEGMENTS OF THE EAST VEIN WERE DISCOVERED; THERE SEGMENTS, CUT BY FAULTS, CONTAINED MINABLE ORE BODIES. ; INFO.SRC : 1 PUB LIT
Comment (Development): PRODUCED CONSIDERABLE ORE FROM THE MAIN COMSTOCK VEIN AT THE 2100 FT. LEVEL MINABLE ORE DISCOVERED AT 2500 FT. LEVEL FROM SEGMENTS OF THE EAST VEIN.
Comment (Deposit): VEIN, FAULT ZONE
References
Reference (Deposit): WPA STATE WRITER'S PROJECT, 1940-41, INDIVIDUAL HISTORIES OF THE MINES OF THE COMSTOCK; UNPUBLISHED OPEN-FILE REPORT; NEV. BUREAU OF MINES AND GEOL.
Reference (Production): STODDARD, C., AND CARPENTER, J.A., 1950
Reference (Deposit): STODDARD, CARL, AND CARPENTER, J.A., 1950, MINERAL RESOURCES OF STOREY AND LYON COUNTIES, NEVADA NBMG BULL 49
Reference (Deposit): BONHAM, H.F., 1969, GEOLOGY AND MINERAL DEPOSITS OF WASHOE AND STOREY COUNTIES, NEVADA: NBMG BULL 78
Reference (Deposit): BASTIN, E.S., 1922, BONANZA ORES OF THE COMSTOCK LODE, VIRGINIA CITY, NEV; USGS. BULL 735-C
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.
