| Deposit ID | 10047485 |
|---|---|
| MRDS ID | M242843 |
| Record type | Site |
| Current site name | Cassidy Mine |
| Alternate or previous names | NBMG Sample Sites 2924, 2925 |
| Geographic coordinates: | -119.2324, 40.8296 (WGS84) |
|---|---|
| Elevation | 1262 |
Political divisions (FIPS codes)
Pershing(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Trego(quadrangle 1:24,000 scale)
Gerlach(quadrangle 1:100,000 scale)
Lovelock(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Quinn(hydrologic unit)
Black Rock Desert(hydrologic accounting unit)
Black Rock Desert-Humboldt(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management NV)
Bureau of Land Management NV BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Nevada | Pershing |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 034N | 024E | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Gold | Ore |
| Tetrahedrite | Ore |
| Epidote | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Siderite | Gangue |
| Result | 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). |
|---|
| Model code | 273 |
|---|---|
| USGS model code | 36a |
| Deposit model name | Low-sulfide Au-quartz vein |
| Mark3 model number | 27 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metavolcanic Rock |
| (1) | -119.2324, 40.8296 |
|---|
| General form | TABULAR |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1935 |
| District name | Trego Mining Area |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242843 |
QUADE, JACK, 5 JUN 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.
NBMG STAFF, 1985, NBMG OFR 85-3.
JOHNSON, M. G., 1977, NBMG BULL 89, PL. I.
| Subject category | Comment text |
|---|---|
| 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. |
| Deposit | Discovery Year: 1930'S ? |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1987 | La Pointe, D.D. (Tingley, J.V.) | Nevada Bureau of Mines and Geology |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.