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
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.
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
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.
