Cassidy Mine

The Cassidy Mine is a gold and silver mine located in Pershing county, Nevada at an elevation of 4,140 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: Cassidy Mine
Secondary: NBMG Sample Sites 2924
Secondary: 2925

Commodity

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

Location

State: Nevada
County: Pershing
District: Trego Mining Area

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

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1935
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Form: TABULAR

Structure

Not available

Alterations

Not available

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian

Analytical Data

Analytical Data: SMAPLE 2924 FROM DUMPS OF INCLINE CONTAINS 3 % FE, 0.03 % MG, 0.07 % CA, 0.05 % TI, 300 PPM MN, 100 PPM AG, 700 PPM AS, 10 PPM AU, 100 PPM BA, 100 PPM BI, 10 PPM CO, 15 PPM CR, 150 PPM CU, 20 PPM MO, 500 PPM PB, 200 PPM SB, 100 PPM V, 300 PPM ZN, AND 15 PPM AU (BY AA ANALYSIS). SAMPLE 2925 FROM SMALL SHAFT DUMP CONTAINS 3 % FE, 0.03 % MG, 0.1 % CA, 0.02 % TI, 100 PPM MN, 70 PPM AG, 700 PPM AS, 20 PPM AU, 70 PPM B, 70 PPM BA, 150 PPM BI, 15 PPM CO, 20 PPM CR, 200 PPM CU, 10 PPM MO, 2000 PPM PB, 300 PPM SB, 200 PPM V, AND 13 PPM AU (BY AA ANALYSIS).

Materials

Ore: Tetrahedrite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Pyrite
Gangue: Epidote
Gangue: Siderite

Comments

Comment (Development): NO ACTIVITY AT TIME OF EXAMINATION IN 1985. WORKINGS APPEAR TO DATE FROM 1930'S.

Comment (Deposit): Discovery Year: 1930'S ?

Comment (Deposit): BEST VEIN MATERIAL IS ASSOCIATED WITH THE INCLINE SHAFT IN MAIN PART OF CAMP (SAMPLE SITE 2924). VEIN MATERIAL INCLUDES HYDROTHERMAL BRECCIA WITH CHALCOPYRITE, AND POSSIBLE TETRAHEDRITE. SAMPLE 2925 WAS FROM A SHAFT ON HILLSDIE SW OF MAIN CAMP A FEW HUNDRED YARDS. DUMP MATERIAL HERE INCLUDED GRANITE, EPIDOTE, AND LESS MINERALIZED MATERIAL CONTAINING PYRITE, SDIERITE, AND CHALCOPYRITE. IRON OXIDES ARE COMMON IN ALL VEINS.

Comment (Location): UTM IS FOR SAMPLE SITE 2924 (SHAFT). UTM FOR SAMPLE SITE 2925 IS N4521860, E311860. ; INFO FROM LAND.ST :(1972)

Comment (Workings): ONE INCLINE, SEVERAL SMALL SHAFTS AND SHALLOW ADITS, PROSPECTS, DOZERCUTS. PROBABLY CONSIDERABLE UNDERGROUND WORKINGS ACCESSED BY THE INCLINE, JUDGING FROM SIZE OF DUMPS.

References

Reference (Deposit): QUADE, JACK, 5 JUN 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

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

Reference (Deposit): JOHNSON, M. G., 1977, NBMG BULL 89, PL. I.

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.