1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Beryl Feldspar Mine

Past Producer in Custer county in South Dakota, United States with commodities Feldspar, Beryllium
Map
XML
JSON
KML
C
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. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10055761
MRDS ID SD02504
Record type Site
Current site name Beryl Feldspar Mine

Geographic coordinates

Geographic coordinates: -103.36862, 43.85413 (WGS84)
Elevation 1341
Location accuracy 500(meters)
Relative position 6 MILES SOUTH OF KEYSTONE, 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

Hayward(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 002S 006E 23;26 South Dakota

Comments on the location information

  • JUST SOUTH OF THE COUNTY LINE, EAST OF THE PUT CLAIM AND SOUTH OF THE BIG SMOKE NO. 1

Commodities

Commodity Importance
Feldspar Primary
Beryllium Critical Secondary

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Mica 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 Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.36862, 43.85413
ListMap

Economic information

Ore body information

  • Strike NW
    Dip SW

Economic information about the deposit and operations

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

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills

Ownership information

  • Type Owner
    Owner Consolidated Feldspar Corp. Of Trenton, Nj

Comments on the workings information

  • A LARGE CUT ON SOUTHWEST SIDE OF THE DIKE AND A SMALLER CUT ON THE NORTHEAST SIDE. MOST OF THE FELDSPAR COMES FROM THE SOUTHERN PIT; MOST OF THE BERYL COMES FROM THE NORTHERN PIT.

Reference information

Bibliographic references

  • Deposit

    USBM INFO CIRC 7707, P. 67-68

General comments

Subject category Comment text
Deposit UNPATENTED LODE CLAIM. 2 ZONES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1982 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