Montana · Madison County
Unknown
Sappington Mica Mine
Madison County, Montana, United States
Mica
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USGS source ↗
Commodities
Primary
Mica
Commodity type
N
Economic & production
Development status
Unknown
Identification
Deposit ID
10197828
Region
NA
Data score
D
Coordinates
45.7655, -111.73416
References
USBM MRB REP 73, 1953, P D-5.