| Deposit ID | 10010787 |
|---|---|
| MRDS ID | D004759 |
| Record type | Site |
| Current site name | Western Feldspar Lode |
| Geographic coordinates: | -103.66585, 43.91663 (WGS84) |
|---|---|
| Elevation | 1890 |
| Relative position | 3.25 MILES SOUTHWEST OF HILL CITY, SOUTH DAKOTA |
Political divisions (FIPS codes)
Pennington(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Medicine Mountain(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 | Pennington |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Black Hills | 001S | 004E | 32 | South Dakota |
| Commodity | Importance |
|---|---|
| Feldspar | Primary |
| Mica | Primary |
| Tin Critical | Primary |
| Lithium Critical | Primary |
| Materials | Type of material |
|---|---|
| Cassiterite | Ore |
| Feldspar | Ore |
| Mica | Ore |
| Spodumene | Ore |
| Quartz | Gangue |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||||||
| Rock unit name | Pegmatite | ||||||||
| Rock description | Pegmatite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| Rock unit name | Schist |
| Rock description | Schist |
| (1) | -103.66585, 43.91663 |
|---|
| General form | DIKE |
|---|---|
| Strike | NE |
| Dip | 75 W |
| Thickness | 5.49M |
| Length | 65.84M |
| Development status | Occurrence |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| District name | Unorganized District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Black Hills National Forest |
| Type | Owner |
|---|---|
| Owner | Andrew Miller And George W. Coats |
| Type of workings | Surface/Underground |
|---|---|
| Overall depth | 7.62M |
| Overall length | 6.1M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D004759 |
U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
| Subject category | Comment text |
|---|---|
| Deposit | 4 ZONES - HANGING WALL AND FOOTWALL ARE 3 - 4 FT ZONES OF FINE GRAINED FELDSPAR, QUARTZ AND MICA WITH TRACES OF CASSITERITE; THE CORE IS ABOUT 11 FT THICK AND CONTAINS FELDSPAR, QUARTZ, MICA AND SPODUMENE. |
| 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.