Blue Bonnet Claim

The Blue Bonnet Claim is a mica mine located in Custer county, South Dakota at an elevation of 5,299 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

Name: Blue Bonnet Claim  

State:  South Dakota

County:  Custer

Elevation: 5,299 Feet (1,615 Meters)

Commodity: Mica

Lat, Long: 43.74722, -103.52722

Map: View on Google Maps

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.


Satelite image of the Blue Bonnet Claim

Blue Bonnet Claim MRDS details

Site Name

Primary: Blue Bonnet Claim
Secondary: Star Claim


Commodity

Primary: Mica
Secondary: 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 National Forest


Holdings

Not available


Workings

Not available


Ownership

Owner Name: N. C. Spilde, William Quinn And P. J. O'Connell
Home Office: Custer, S.D.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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

Not available


Alterations

Alteration Type: L
Alteration Text: Stained Pale To Ruby Mica


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: Muscovite
Gangue: Quartz
Gangue: Albite
Gangue: Biotite
Gangue: Apatite
Gangue: Garnet


Comments

Comment (Production): A SMALL AMOUNT OF PUNCH & SCRAP MICA AND A LITTLE BERYL WAS SHIPPED IN 1943

Comment (Deposit): 3 ZONES

Comment (Workings): A LARGE PIT AND SEVERAL SMALL CUTS


References

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

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


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