| Deposit ID | 10012478 |
|---|---|
| MRDS ID | D008124 |
| Record type | Site |
| Current site name | Old Missouri Prospect |
| Geographic coordinates: | -103.64362, 43.66968 (WGS84) |
|---|---|
| Elevation | 1646 |
| Location accuracy | 500(meters) |
| Relative position | 4.5 MILES NORTHWEST OF PRINGLE IN CUSTER COUNTY, SOUTH DAKOTA. |
Political divisions (FIPS codes)
Custer(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Fourmile(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 | 004S | 004E | 28 | SE | South Dakota |
| Commodity | Importance |
|---|---|
| Feldspar | Primary |
| Mica | Primary |
| Materials | Type of material |
|---|---|
| Biotite | Ore |
| Muscovite | Ore |
| Albite | Gangue |
| Quartz | Gangue |
| Tourmaline | Gangue |
| Result | DEEP RUBY MICA |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Pegmatite |
| (1) | -103.64362, 43.66968 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Fractures Filled With Pegmatite |
| General form | IRREGULAR BRANCHING |
|---|---|
| Strike | N55W |
| Dip | 50NE |
| Width | 76.2M |
| Development status | Past Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1942 |
| District name | Custer District |
|---|
| Ownership category | |
|---|---|
| Area name | Black Hills |
| Type | Operator |
|---|---|
| Owner | Mr. Cottrell And Mr. King |
| First year | 1943 |
| Type | Owner |
|---|---|
| Owner | Mrs. L. L. Perris |
| Home office | Hillsborough, Oregon |
| Type of workings | Surface |
|---|---|
| Overall depth | 4.57M |
| Overall length | 18.29M |
| Overall width | 7.62M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D008124 |
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707.
USGS PP 247, P. 173-174.
USBM INFO CIRC 7707.
| Subject category | Comment text |
|---|---|
| Deposit | THE PEGMATITE NARROWS TO 10 FT. BOOKS OF MICA UP TO 12 INCHES IN DIAMETER FOUND ALONG THE EDGES OF PART OF THE PEGMATITE. PARTS OF THE DEPOSIT CONTAIN AS MUCH AS 25% CLEAN FELDSPAR IN BLOCKY CRYSTALS UP TO 2 FT IN DIAMETER. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1981 | Barari, Rachel A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.