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
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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.
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
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.
