South Dakota · Pennington County
Past Producer
Gertie
Pennington County, South Dakota, United States
Tin
Feldspar
Mica
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USGS source ↗
Commodities
Primary
Tin
Tertiary
Feldspar, Mica
Commodity type
B
Deposit
Deposit size
S
Orebody form
TWO PARALLEL DIKES
Materials
Ore minerals
Cassiterite, Feldspar, Muscovite
Gangue
Quartz, Tourmaline
Geology
Host rock
Pegmatite
Associated rock
Pegmatite · Pegmatite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10101551
MRDS ID
D004757
Region
NA
Data score
B
Coordinates
43.92274, -103.58389
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707