The Oreville Spar Mica Mine is a mica mine located in Pennington county, South Dakota at an elevation of 5,440 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
Elevation: 5,440 Feet (1,658 Meters)
Commodity: Mica
Lat, Long: 43.86, -103.62500
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.
Oreville Spar Mica Mine MRDS details
Site Name
Primary: Oreville Spar Mica Mine
Commodity
Primary: Mica
Tertiary: Lithium
Tertiary: Feldspar
Tertiary: Beryllium
Tertiary: Tin
Location
State: South Dakota
County: Pennington
District: Unorganized 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
Type: Surface
Ownership
Owner Name: Gladys Wells And Fred Heidepriem
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
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Cassiterite
Ore: Beryl
Ore: Feldspar
Ore: Mica
Ore: Amblygonite
Comments
Comment (Development): ECON.COM: SHEET MICA OCCURS IN BOOKS UP TO 4 INCHES ACROSS
Comment (Workings): DEVELOPMENT CONSISTS OF ONE LARGE OPENCUT 30 FEET DEEP, AND SEVERAL SMALL PROSPECT PITS
Comment (Location): SE 1/4
Comment (Deposit): THE OUTCROP CONSISTS OF 2 LOBES INTRUDED INTO A STEEPLY PLUNGING FOLD. THE SOUTH OUTCROP STRIKES NW AND DIPS SW. THE NORTH LIMB STRIKES NE AND DIPS NW.
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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