Dan Patch Group

Past Producer in Pennington county in South Dakota, United States with commodities Feldspar, Mica, Beryllium, Tantalum, Zinc
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 10104257
MRDS ID SD02302
Record type Site
Current site name Dan Patch Group

Geographic coordinates

Geographic coordinates: -103.44223, 43.89413 (WGS84)
Elevation 1366
Relative position 2 MILES SOUTH-SOUTHWEST OF THE KEYSTONE POST OFFICE.

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 07 South Dakota

Comments on the location information

  • NE 1/4, NE 1/4

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary
Tantalum Critical Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Beryl Ore
Muscovite Ore
Sphalerite Ore
Cleavelandite Gangue
Quartz Gangue
Triphylite Gangue
Uraninite Gangue
Zircon Gangue
Albite Unknown

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) -103.44223, 43.89413

Economic information

Ore body information

  • General form PIPELIKE
    Plunge direction SE
    Length 48.77M
    Width 45.72M

Comments on the geologic information

  • BERYL IS WHITE, IN LARGE CRYSTALS, MUSCOVITE FORMS IN BOOKS OF IRREGULAR DISTRIBUTION.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1905

Mining district

District name Keystone District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Consolidated Feldspar Corp.

Comments on the production information

  • BETWEEN JANUARY 1939 AND NOVEMBER 1, 1942

Comments on the workings information

  • A SINGLE LARGE OPEN PIT.

Comments on development

  • FOUR UNPATENTED LODE CLAIMS

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

  • Deposit

    AM. MINERALOGIST, VOL 56, P. 1-17.

General comments

Subject category Comment text
Deposit THE MAIN MASS IS COARSE MICROCLINE-PERTHITE INTERGROWN WITH MASSIVE QUARTZ, ALBITE, AND MUSCOVITE, BERYL, COLUMBITE-TANTALITE, AND SPHALERITE OCCUR WITH THE MUSCOVITE.

Reporter information

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

Beyond USGS

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