Edison Mine

The Edison Mine is a lithium mine located in Pennington county, South Dakota at an elevation of 4,521 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Edison Mine
Secondary: Bull Con
Secondary: Hector Fraction
Secondary: Sitting Bull
Secondary: Gold Star Claims

Commodity

Primary: Lithium
Secondary: Mica
Secondary: Feldspar
Secondary: Beryllium
Secondary: Tantalum

Location

State: South Dakota
County: Pennington
District: Keystone District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Black Hills National Forest

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Edison, T. A. (Estate)

Owner Name: Lithium Corp. Of America (By Lease)

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1917
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR DIKES

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The Core Spodumene Crystals Range From Fresh To Highly Altered.

Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Not available

Materials

Ore: Muscovite
Ore: Spodumene
Ore: Beryl
Ore: Feldspar
Gangue: Holmquistite
Gangue: Albite
Gangue: Quartz
Gangue: Calcite
Gangue: Hornblende
Gangue: Pyrite

Comments

Comment (Workings): SURFACE & UNDERGROUND MINING. 12 DIAMOND DRILL HOLES ON THE EDISON, 1 ON THE BULL CON. 2,114.5 FT OF TEST HOLES

Comment (Deposit): 4 OR MORE COALESING PEGMATITES HAVING 2 ZONES. SPODUMENE CRYSTALS UP TO 8 FT LONG. BULL CON DIKE IS 450 FT NORTH OF THE EDISON

Comment (Location): ADJACENT PARTS OF SECTION 16

References

Reference (Deposit): U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

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

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

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