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Lucky Twist 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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10011982
MRDS ID D007202
Record type Site
Current site name Lucky Twist Mine
Alternate or previous names Sutherland Mine

Geographic coordinates

Geographic coordinates: -103.59, 43.67385 (WGS84)
Elevation 1646
Location accuracy 500(meters)
Relative position 7 MILES SOUTH OF CUSTER SOUTH DAKOTA; 1 MILE SOUTH OF BEECHER'S ROCK

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cicero Peak(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 004S 004E 25 NW South Dakota

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Secondary

Materials information

Materials Type of material
Beryl Ore
Feldspar Ore
Muscovite Ore
Quartz 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 Plutonic Rock > Pegmatite

Nearby scientific data

(1) -103.59, 43.67385
ListMap

Economic information

Ore body information

  • General form DIKE
    Strike N
    Dip NEARLY 90
    Length 182.88M
    Width 21.34M

Controls for ore emplacement

  • Most Of The Mica Is In A 4 Ft Zone In The Hanging Wall

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 National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Sutherland And Parker
    Home office Custer, S.D.

Comments on the production information

  • INCOMPLETE FIGURES THAT COVER ONE 5 MONTH PERIOD: NO YEAR STATED.

Workings at the site

  • Type of workings Surface
    Area 0.003HA
    Overall depth 1.83M
    Overall length 9.14M
    Overall width 3.05M

Comments on the workings information

  • THERE ARE 3 OTHER CUTS DOWN TO 12 BY 6 BY 3 FT.

Reference information

Bibliographic references

  • Deposit

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

  • 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 ABOUT ONE THIRD OF THE DIKE IS FELDSPAR. SOME MASSES AS LARGE AS 4 X 6 FT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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

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