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Big Spar No. 1 Mine

Past Producer in Custer county in South Dakota, United States with commodities Feldspar, Mica, Beryllium
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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. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012482
MRDS ID D008130
Record type Site
Current site name Big Spar No. 1 Mine

Geographic coordinates

Geographic coordinates: -103.65307, 43.7544 (WGS84)
Elevation 1707
Location accuracy 500(meters)
Relative position 2.2 MILES WEST OF CUSTER, SOUTH DAKOTA.

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Berne(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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 003S 004E 21 SW South Dakota

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary

Materials information

Materials Type of material
Beryl Ore
Muscovite Ore
Albite Gangue
Garnet Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -103.65307, 43.7544
ListMap

Economic information

Ore body information

  • Strike NE
    Dip STEEPLY NW

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Custer District

Land status

Ownership category
Area name Black Hills

Ownership information

  • Type Operator
    Owner Consolidated Feldspar Corp.
    Home office Trenton, N.J.

Comments on the production information

  • A FEW TONS OF BERYL.

Workings at the site

  • Type of workings Surface
    Area 0.02HA
    Overall depth 15.24M
    Overall length 22.86M
    Overall width 9.14M

Comments on the workings information

  • OPEN CUT.

Reference information

Bibliographic references

  • Deposit

    USBM INFO CIRC 7707, P. 114-115.

  • Deposit

    USGS PP 247, P. 74.

  • Deposit

    ROBERTS, W. L. AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18.

General comments

Subject category Comment text
Deposit TWO ZONES, A LARGE MASS OF PEGMATITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1981 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