Commodities
PrimaryFeldspar
SecondaryBeryllium, Mica
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface
Orebody formKNOB
Materials
Ore mineralsBeryl, Biotite, Muscovite
GangueAlbite, Amblygonite, Quartz, Tourmaline
Geology
Host rockGranite
Associated rockPegmatite
Tectonic settingSouthern Black Hills
Economic & production
Development statusPast Producer
Identification
Deposit ID10055720
MRDS IDSD02447
Alternate namesKem Lode
RegionNA
Data scoreB
Coordinates43.7219, -103.69418
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