| Deposit ID | 10106643 |
|---|---|
| MRDS ID | D004775 |
| Record type | Site |
| Current site name | Shamrock No. 1 Lode |
| Geographic coordinates: | -103.55362, 43.76829 (WGS84) |
|---|---|
| Elevation | 1609 |
| Relative position | 1.5 MILES EAST OF CUSTER, SOUTH DAKOTA |
Political divisions (FIPS codes)
Custer(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Custer(quadrangle 1:24,000 scale)
Mount Rushmore(quadrangle 1:100,000 scale)
Hot Springs(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Cheyenne-Spring(hydrologic unit)
Cheyenne(hydrologic accounting unit)
Cheyenne(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Black Hills National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | South Dakota | Custer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Black Hills | 003S | 005E | 29,20 | South Dakota |
| Commodity | Importance |
|---|---|
| Feldspar | Primary |
| Materials | Type of material |
|---|---|
| Feldspar | Ore |
| Amblygonite | Gangue |
| Lepidolite | Gangue |
| Mica | Gangue |
| Microlite | Gangue |
| Quartz | Gangue |
| Spodumene | Gangue |
| Tourmaline | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||
| Rock unit name | Granite;Pegmatite | ||||
| Rock description | Granite;Pegmatite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| (1) | -103.55362, 43.76829 |
|---|
| General form | DIKE |
|---|---|
| Dip | 90 |
| Development status | Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Small |
| Significant | No |
| District name | Custer District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Black Hills National Forest |
| Type | Owner |
|---|---|
| Owner | International Minerals And Chemical Corp. (Imc) |
| Home office | P.O. Box 71, Carlsbad, N.M. 88220 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D004775 |
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18
BIENIEWSKI, C.L., AND AGNEW, A.F., 1964, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1962, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 10
BIENIEWSKI, C.L., AND MCGREGOR, D.J., 1965, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1963, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 11
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707. BIENIEWSKI, C.L., AND AGNEW, A.F., 1964, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1962, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 10. BIENIEWSKI, C.L., AND MCGREGOR, D.J., 1965, THE MINERAL INDUSTRY OF SOUTH DAKOTA IN 1963, SOUTH DAKOTA GEOLOGICAL SURVEY MINERALS REPORT 11.
| Subject category | Comment text |
|---|---|
| Deposit | THE MINE IS POSSIBLY STILL ACTIVE ALTHOUGH THE LAST SPECIFIC MENTION OF PRODUCTION FROM THE SHAMROCK WAS IN 1963. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1980 | Barari, Rachel A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.