South Dakota · Pennington County
Occurrence
New England Prospect
Pennington County, South Dakota, United States
Feldspar
Beryllium
Mica
⌖ Show on map
USGS source ↗
Commodities
Primary
Feldspar, Beryllium, Mica
Commodity type
B
Deposit
Deposit size
N
Materials
Ore minerals
Beryl, Biotite, Feldspar, Microcline, Muscovite
Gangue
Tourmaline
Geology
Host rock
Pegmatite
Associated rock
Granite · Pegmatite;Graphitic Granite
Economic & production
Development status
Occurrence
Identification
Deposit ID
10055645
MRDS ID
SD02250
Region
NA
Data score
D
Coordinates
43.85079, -103.39362
References
U. S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707