New York Mine

The New York Mine is a feldspar and mica mine located in Custer county, South Dakota at an elevation of 5,295 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: New York Mine
Secondary: Westinghouse No. 1

Commodity

Primary: Feldspar
Primary: Mica
Tertiary: Tantalum
Tertiary: Niobium (Columbium)
Tertiary: Beryllium

Location

State: South Dakota
County: Custer
District: Custer 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

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: New York Mine Corp.
Home Office: Denver, Co

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1880
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

Not available

Structure

Type: L
Description: Faults, Shear Zones, Quartz Veins, Aplite Dikes

Alterations

Not available

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: Beryl
Ore: Columbite
Ore: Muscovite
Ore: Tantalite
Ore: Feldspar
Gangue: Amblygonite
Gangue: Cleavelandite
Gangue: Cassiterite
Gangue: Lepidolite
Gangue: Spodumene
Gangue: Tourmaline

Comments

Comment (Deposit): ONE SMALL CLAIM, 300 BY 1500 FEET, IS PATENTED. THE DIKE NARROWS 8 FT IN EACH 100 FT OF DEPTH. COMPLEX DIKE-5 ZONES. SHEET MICA

Comment (Workings): THE PRINCIPAL LEVELS ARE AT 100, 200 AND 300 FT

Comment (Geology): 0.25-0.50% OF THE WALL ZONE MATERIAL IS BERYL WITH NUMEROUS INCLUSIONS.

Comment (Reserve-Resource): ITEM 1 AND 2: HANGING WALL. ITEM 3: FOOTWALL

Comment (Location): JUST EAST OF THE CENTER OF THE SECTION; 1/2 MILE SW OF THE HELEN BERYL MINE

References

Reference (Deposit): U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707, P. 149

Reference (Deposit): SDSMT BULL 18

Reference (Deposit): USGS PP 247, P. 163-170

Reference (Production): USGS PP 247, P. 169

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