South Dakota · Pennington County
Past Producer
Egyptian Group
Pennington County, South Dakota, United States
Gold
Silver
Zinc
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USGS source ↗
Commodities
Primary
Gold, Silver
Tertiary
Zinc
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Ore control
Shear Zones
Materials
Ore minerals
Chalcopyrite, Gold, Pyrrhotite, Silver, Sphalerite
Gangue
Ankerite, Biotite, Chlorite, Hornblende, Quartz
Geology
Host rock
Slate
Economic & production
Development status
Past Producer
Identification
Deposit ID
10055765
MRDS ID
SD02509
Region
NA
Data score
C
Coordinates
43.90607, -103.42112
References
USBM INFO CIRC 7707, P. 96