Commodities
PrimaryFeldspar, Mica
Commodity typeN
Deposit
Deposit sizeS
Orebody formSINUOUS
Materials
Ore mineralsFeldspar, Muscovite
GangueQuartz
Geology
Host rockPegmatite
Associated rockPegmatite
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
Identification
Deposit ID10011981
MRDS IDD007201
Alternate namesFrancis Lode
RegionNA
Data scoreC
Coordinates43.6244, -103.60445
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707