Onondaga

The Onondaga is a silver mine located in Eureka 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.

Site Name

Primary: Onondaga

Commodity

Primary: Silver
Secondary: Copper
Tertiary: Lead
Tertiary: Gold
Tertiary: Zinc

Location

State: Nevada
County: Eureka
District: Safford District

Land Status

Land ownership: BLM Administrative Area
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

Owner Name: Silver Bromide Mining Co
Years: 1935 -

Production

Year: 1933
Time Period: 1933
Material type: ORE
Description: Cp_Grade: ^46 Oz/Ton Ag, 0.6% Cu, Trace Au

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1881
Discovery Year: 1881
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

Not available

Orebody

Form: TABULAR

Structure

Type: L
Description: Nw Trending Faults

Alterations

Alteration Type: L
Alteration Text: Volcanics Widely Propylitized With A Pyrite Halo Around The Mineralized Area

Rocks

Name: Andesite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Jurassic

Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic

Analytical Data

Analytical Data: 20 TONS SHIPPED IN 1933 RAN 46 OZ/T AG, TR. AU, 0.6% CU

Materials

Ore: Argentite
Ore: Sphalerite
Ore: Pyrite
Ore: Galena
Gangue: Barite
Gangue: Calcite
Gangue: Quartz

Comments

Comment (Development): MOST PRODUCTION WAS FROM 1881 TO 1890

Comment (Geology): THE ORE OCCURS AS SHOOTS IN TWO VEINS, THE PRINCIPLE ONE STRIKES NW, DIPPING STEEPLY SW.

Comment (Deposit): 2 VEINS

Comment (Workings): SEVERAL ADITS, A SHAFT, AND OTHER WORKINGS

Comment (Deposit): ABOUT 1000 FEET SOUTHEAST OF THE ZENOLI MINE. MOST PRODUCTION OCCURED FROM 1881 TO 1890. THE SILVER BROMIDE MINING CO. TOOK OVER THE PROPERTY IN 1935. DEVELOPMENT CONSIST S OF SEVERAL ADITS, A SHAFT, AND OTHER WORKINGS TOTALING ABOUT 2,000 FEET (VANDERBURG). THE PROPERTY INCLUDES THE RUBY & MALACHITE CLAIMS. ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): ROBERTS, R.J. ET AL (1967) GEOLOGY & MINERAL RESOURCES OF EUREKA CO., N.B.M. BULL 64

Reference (Deposit): USBM (WINNEMUCCA) MILS NO. 169, REFERENCE NO. 3201100013

Reference (Deposit): EMMONS, W.H. (1910) RECONNAISSANCE OF MINING DISTRICTS IN EUREKA, LANDER, & ELKO COS., USGS BULL 408

Reference (Deposit): VANDERBUR W.O. (1938) RECONNAISSANCE OF MINING DISTRICTS IN EUREKA CO., USBM 1C. 7022

Reference (Production): ROBERTS, R.J. ET AL., (1967)

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.