Cornucopia

The Cornucopia is a gold and silver 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: Cornucopia  

State:  Nevada

County:  Elko

Elevation:

Commodity: Gold, Silver

Lat, Long: 41.53417, -116.29278

Map: View on Google Maps

Satelite View

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Satelite image of the Cornucopia

Cornucopia MRDS details

Site Name

Primary: Cornucopia
Secondary: Leopard


Commodity

Primary: Gold
Primary: Silver
Secondary: Copper
Secondary: Zinc


Location

State: Nevada
County: Elko
District: Cornucopia


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

Not available


Ownership

Owner Name: James Dodge, Roy Pike, And Standard Ag Inc

Owner Name: Mine Tek, Scott Jolcover, Gen Mgr
Home Office: P.O. Box 237, Dayton, Nv 89403


Production

Not available


Deposit

Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Not available


Mineral Deposit Model

Model Name: Epithermal vein, Comstock


Orebody

Form: TABULAR


Structure

Type: L
Description: Four Sets Of Faults


Alterations

Alteration Type: L
Alteration Text: Locally Sericitic Near Veins, Minor Chlorite


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: Pyromorphite
Ore: Argentite
Ore: Tetrahedrite
Gangue: Pyrite
Gangue: Clay


Comments

Comment (Workings): 2 SHAFTS; NUMEROUS CUTS . IN 1982, SHAFTS WERE CAVED AND AREA AROUND MINES WAS COVERED BY REWORKED WASTE DUMPS. REMAINS OF MILLSITE ABOVE SHAFT, IN ADDITION TO MODERN TRAILER AND CORE SHED. DRILL ROADS COVER HILLSIDE SOUTH AND EAST OF MILLSITE AND IN VICINITY OFOLD SHAFTS.

Comment (Deposit): THE LARGEST MINE IN THE DISTRICT, DEVELOPMENT CONSISTED OF TWO SHAFTS AND NUMEROUS CUTS. THE SHAFTS ARE NOW CAVED. MUCH OF THE AREA IS NOW COVERED BY MINE DUMPS. SURFACE CHIP SAMPLING IN 1973 INDICATED DISSEMINATED GOLD-SILVER OVER A BROAD AREA IN THE VICINITY OF THE LEOPARD VIEW. EXPLORATION BY TRENCHING REVEALED OPEN-PIT MINING MAY BE FEASIBLE (SMITH 1976 P.47) ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Comment (Geology): THE ORE VEINS OCCURR ONLY IN SHEETED ZONES OF ANDESITE PORPHYRY. THESE ZONES OCCUR ALONG ALL FOUR SETS OF FAULTS WHICH TRANSECT THE AREA. THE ANDESITE IS HIGHLYALTERED NEAR THE FAULTS. POST MINERAL MOVEMENT HAS CUT OFF THE VEIN TO THE NORTH. MAIN DUMPS BELOW MILLSITE CONSIST (1982) OF A MIXTURE OF QUARTZ VEIN, SILICIFIED ANDESITE AND QUARTZ VEIN/ANDESITE BRECCIA. ALL SAMPLES CONTAIN DISPERSED SULFIDES, MOSTLY PYRITE, WITH A BANDED APPEARANCE, AND SHOWING FE-STAINED VUGS AND DISPERSED SULFIDES. SOME ARGILLIZED ANDESITE WITH CLOTS, LENSES OR VEINS OF FINE-GRAINED PYRITE AND SOME FE-SILICA-CEMENTED QUARTZ VEIN BRECCIA WAS ALSO INCLUDED IN SAMPLE. THE ANDESITE HOST HAS A PORPHYRITIC TEXTURE WITH PLAGIOCLASE PHENOCRYSTS SET IN AN ALTERED GREY TO LIGHT GREEN CRYSTALLINE MATRIX. THE CAVED STOPE BEHIND THE MILLSITE EXPOSES BLEACHED, ARGILLIZED, KAOLINIZED, SILICIFIED ANDESITE. THE ROCK IS HIGHLY FRACTURED AND FE-STAINED. THE STOPE FOLLOWS AN FE-STAINED FAULT WHICH STRIKES N15W, 60SW, FOLLOWED

Comment (Geology): BY MINED-OUT LEOPARD VEIN. SOME HEMIMORPHITE OBSERVED IN GOSSAN HERE. NUMBER OF CORE BOXES IN CORE SHED INDICATES OVER 20 EXPLORATION HOLES DRILLED TO 300-400 FT. DRILLING WAS DONE BY SPARTAN EXPLORATIONS LTD, SUMMER, 1974

Comment (Location): INFO FROM LAND.ST :1982

Comment (Production): UNKNOWN AMOUNT

Comment (Development): CENTER OF DISTRICT IS PATENTED. LISTED AS AN ACTIVE MINE IN 1983, EMPLOYING 10 PERSONS, HEAP LEACH, CYANIDATION.

Comment (Deposit): SHEETED ZONES IN ANDESITE PORPHYRY OCCUR ALONG 4 SETS OF FAULTS TRANSECTING THE AREA.


References

Reference (Deposit): BENTZ, J. AND SMITH, P., 1982, FIELD EXAMINATION REPORT, 8/19/82.

Reference (Production): SMITH, R.M.(1976)

Reference (Deposit): SMITH R.M.(1976-56) MINERAL RESOURCES OF ELKO CO., NEV, U.S.G.S. OPEN-FILE REPORT

Reference (Deposit): GRANGER A.E., (1957) MINERAL RESOURCES OF ELKO CO., NEV., NEV. BUR. OF MINES BULL. 54

Reference (Deposit): ENG AND MIN JOUR, MARCH AND JUNE, 1974.

Reference (Deposit): COATS, 1967, USGS CIRC 549.


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.