South Dakota · Pennington County
Past Producer
Oreville Spar Mica Mine
Pennington County, South Dakota, United States
Mica
Feldspar
Beryllium
Tin
Lithium
⌖ Show on map
USGS source ↗
Commodities
Primary
Mica
Tertiary
Feldspar, Beryllium, Tin, Lithium
Commodity type
B
Deposit
Deposit size
S
Workings
Surface
Ore control
Steeply-Plunging Fold
Materials
Ore minerals
Amblygonite, Beryl, Cassiterite, Feldspar, Mica
Geology
Host rock
Schist · Schist
Associated rock
Pegmatite · Pegmatite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10055700
MRDS ID
SD02320
Region
NA
Data score
B
Coordinates
43.85996, -103.62557
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707