Commodities
PrimaryMica
Commodity typeN
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR
Materials
Ore mineralsMuscovite
GangueAlbite, Amblygonite, Quartz, Triphylite
Geology
Host rockSchist
Associated rockPegmatite
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
First production1880
Identification
Deposit ID10011984
MRDS IDD007204
RegionNA
Data scoreB
Coordinates43.76302, -103.55278
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18