Keystone

The Keystone is a silver and lead mine located in Elko 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: Keystone  

State:  Nevada

County:  Elko

Elevation:

Commodity: Silver, Lead

Lat, Long: 40.88722, -114.29861

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.


Satelite image of the Keystone

Keystone MRDS details

Site Name

Primary: Keystone
Secondary: Nickel Duke
Secondary: Nick Del Duke


Commodity

Primary: Silver
Primary: Lead
Secondary: Tungsten


Location

State: Nevada
County: Elko
District: Proctor (Silver Zone)


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1918
Discovery Year: 1875
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Not available


Mineral Deposit Model

Model Name: Polymetallic veins


Orebody

Form: TABULAR


Structure

Not available


Alterations

Not available


Rocks

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

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

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


Analytical Data

Not available


Materials

Ore: Pyrite
Gangue: Quartz


Comments

Comment (Deposit): Discovery Year: LATE 1800'S

Comment (Location): APPX. 1 MILE N. OF PROCTOR

Comment (Production): SMALL SHIPMENTS OF SILVER ORE MADE IN 1917. EARLIER PRODUCTION UNKNOWN

Comment (Geology): QUARTZ VEINS UP TO 10 FT WIDE. N 45 W, SHEAR ZONE IN WHITE, MARBELIZED VLS, 3 FT-6 FT QTZ VEIN IN SHEAR, W/BLEBS TETRAHIDNITE.

Comment (Development): THE DISTRICT WAS DISCOVERED IN 1872. THIS PROPERTY (UNDER THE NAME OF THE NICK DEL DUKE) MADE SMALL SHIPMENTS OF ORE IN 1917, EARLIER PRODUCTION IS UNKNOWN

Comment (Deposit): VEINS, QUARTZ; SHEAR ZONE

Comment (Deposit): THE SILVER ZONE MINING DISTRICT WAS DISCOVERED IN 1872, CREATING A SMALL MINING EXCITEMENT; A POST OFFICE WAS ESTABLISHED FROM AUGUST 27, 1872 TO SEPTEMBER 10, 1873 TO SERVE THE NEW SILVER DISTRICT. A STAGE LINE SERVED THE DISTRICT FROM TOANU ON THE CENTRAL PACIFIC RR. IN 1917 THE NICK DEL DUKE PROPERTY MADE SMALL SHIPMENTS OF SILVER ORE. THE EARLIER PRODUCTION IS UNKNOWN. ; INFO.SRC : 1 PUB LIT


References

Reference (Deposit): FIELD EXAM BY J. V. TINGLEY, NBMG, ON 7/16/80

Reference (Production): SMITH, R.M., (1976) P. 135-6

Reference (Deposit): PATTERSON, EDNA, (1964), WHO NAMED IT? ELKO INDEPENDENT - W. & M. MONROE PUBLISHERS.

Reference (Deposit): LINCOLN, F.C., (1923), MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA, NEVADA NEWSLETTER PUBL. 60

Reference (Deposit): SMITH, ROSCOE M, MINERAL RESOURCES OF ELKO COUNTY, NEVADA, USGS OPEN FILE REPORT, 1976-56


Nevada Gold

Gold Districts of Nevada

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.