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Plate Mica Prospect

Past Producer in Pennington county in South Dakota, United States with commodities Mica, Beryllium, Tantalum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10104248
MRDS ID SD02258
Record type Site
Current site name Plate Mica Prospect

Geographic coordinates

Geographic coordinates: -103.45695, 43.9019 (WGS84)
Elevation 1341
Relative position 2 MILES WEST-NORTHWEST OF KEYSTONE, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Pennington(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Rushmore(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)

Geographic areas

Country State County
United States South Dakota Pennington

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 002S 006E 06 SW South Dakota

Comments on the location information

  • ONE MILE SOUTH OF THE BOB INGERSOLL MINE.

Commodities

Commodity Importance
Mica Primary
Beryllium Critical Primary
Tantalum Critical Secondary

Comments on the commodity information

  • THE MICA IS MOSTLY SCRAP QUALITY, BUT SOME PUNCH-SIZED BOOKS ARE PRESENT.

Materials information

Materials Type of material
Beryl Ore
Mica Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.45695, 43.9019
ListMap

Economic information

Ore body information

  • Strike S 55 W
    Dip NW

Controls for ore emplacement

  • Mica Wall Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1941
Discoverer E.C. Harris & V. T. Leaver

Mining district

District name Keystone District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner E. C. Harris And V. T. Leaver

Comments on the workings information

  • TWO SMALL CUTS

Comments on development

  • UNPATENTED LODE CLAIM

Reference information

Bibliographic references

  • Deposit

    U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 770

  • Production

    U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

General comments

Subject category Comment text
Deposit TWO PARALLEL PEGMATITES; MICA WALL ZONE UP TO 6 FT IN THICKNESS THAT CONTAINS BERYL

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1980 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site