Eveningstar Mine

The Eveningstar Mine is a gold and silver mine located in Pershing county, Nevada at an elevation of 5,249 feet.

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: Eveningstar Mine

Commodity

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

Location

State: Nevada
County: Pershing
District: Trinity 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: Clayton Mendham
Years: 1935 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1864
Discovery Year: 1862
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Form: TABULAR, PINCH-AND-SWELL,PODS

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silification

Rocks

Name: Hornfels
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Analytical Data

Analytical Data: MINE WORKINGS-0.2-28.3 OZ AG, 3-0.66 OZ. AU PER TON. SAMPLE 2829 CONTAINS 2 % FE, 2 % MG, 0.1 % CA, 0.05 % TI, 70 PPM MN, 20 PPM AG, 200 PPM AS, 1000 PPM B, 500 PPM BA, 1 PPM BE, 10 PPM CR, 100 PPM CU, 7 PPM MO, 7 PPM NI, 300 PPM PB, 150 PPM V, 700 PPM ZN, 20 PPM ZR, AND 0.15 PPM AU, BY AA ANALYSIS.
Analytical Data: DUMP SAMPELES-0.1-128.1 OZ. AG, 0.02-0.66% CU, T TO 0.31 OZ AU

Materials

Ore: Gold
Ore: Galena
Ore: Chalcopyrite
Gangue: Quartz

Comments

Comment (Location): ALL OF THE MINES ARE IN THE VERY NARROW TRINITY CANYON WITH A STREAM FROM SPRINGS FLOWING DOWN THE MIDDLE OF THE ROAD IN THE BOTTOM OF THE CANYON THE ONLY ACCESS TO THE AREA.

Comment (Production): INCOMPLETE RECORDS: 38 TONS ORE AT $50-$90/TON IN 1935

Comment (Development): WORKED IN 1860'S, 1877-78, 1914-1916, 1934-35. NO ACTIVITY IN 1984 AT TIME OF EXAMINATION, BUT ACTIVE WORK TO NORTH OF CAMP.

Comment (Deposit): Discovery Year: EARLY 1860'S

Comment (Deposit): THE EVENINGSTAR WAS THE FIRST MINE WORKED IN THE DISTRICT, DISCOVERED IN EARLY 1860'S. IT WAS EXTENSIVELY DEVELOPED IN 1864 AND HAD ITS OWN 5-STAMP MILL, THAT WAS MOVED TO OREANA IN 1865. MINE WAS WORKED AGAIN IN 1877-78 AND INTERMITTENTLY FROM 1914 TO 1916, AND REOPENED 1934-35 BY CLAYTON MENDHAM. DEVELOPED BY AN INCLINED SHAFT AND SEVERAL ADITS; 1500 LENGTH TOTAL WORKINGS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Comment (Geology): ORE OCCURS IN 2 PARALLEL VEINS FROM SEVERAL INCHES TO 3 1/2 FT. WIDE. GOLD IS FREE AND ASSOCIATED WITH IRON OXIDES. MINERALIZATION CHARACTERIZED BY PINCH AND SWELL STRUCTURE THAT DEFINES PODS OF SHEARED AND BRECCIATED RONGLY ALTERED GRANODIORITE 2-4 FT. WIDE.

Comment (Deposit): INCLINED SHAFTS WERE DRIVEN IN SHEAR ZONES IN GRANODIORITE. ALTERATION ALONG THE VEINS INCLUDES BRECCIATION SILICIFICATION AND IRON OXIDES. VEINS TREND N 60-70 E, DIP ABOUT 60 W. THERE ARE BOTH QUARTZ BRECCIAS AND BRECCIA COMPOSED OF MAFIC ROCKS WITH A MATRIX OF SILICA AND SULFIDES. SAMPLE 2829 TAKEN FROM THE DUMPS OF THE EVENING STAR AND FROM AN EXPOSED VEIN IN THE UPPER WORKINGS, CONSISTS OF CHALCOPYRITE, GALENA, POSSIBLE SILVER SULFIDES AND GOLD. WORKINGS EAST OR WEST OF THE MINE ARE ON PARALLEL VEINS. ONE OF THE SHEAR ZONES FILLED WITH VEIN MATERIAL IS UP TO 20 FT WIDE WITH OPEN STOPES ADJACENT TO THE INCLINE.

Comment (Workings): INCLINED SHAFT, ADITS

References

Reference (Deposit): QUADE, JACK, 8 SEP 84, NBMG FIELD EXAMINATION AND SAMPLE ANLYSIS.

Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3.

Reference (Production): JOHNSON, M.G., 1977.

Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULLETIN 89.

Reference (Deposit): VANDERBURG, 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; USBM 1C6902.

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.